COSEWIC candidate wildlife species

Last updated March 2018

List of wildlife species grouped by the type of wildlife and by its risk of extinction. Each species is assigned to one of 3 groups, depending on how urgently it needs to be assessed. Species in the highest urgency group are reviewed and ranked to create the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) candidate list.

Part 1: overview

Many species in Canada have not yet been assessed by COSEWIC, but are suspected of being at some risk of extinction or extirpation. These species, referred to as ‘candidate wildlife species’ are identified by the species specialist subcommittees (SSCs) or by the Aboriginal Traditional Knowledge (ATK) subcommittee as candidates for detailed status assessment. Candidates may also include wildlife species already assessed by COSEWIC as not at risk or data deficient, but where new information suggests they may be at risk.

SSC and ATK subcommittee members use their expert knowledge and judgment to identify candidate wildlife species. They draw on numerous sources of information including (where available) the General Status of Wild Species in Canada program, information drawn from other multi-jurisdictional monitoring, jurisdictional and international assessment processes (e.g. IUCN and NatureServe) and published ranking systems in the scientific literature. As time and resources allow, COSEWIC will commission status reports for high priority candidate wildlife species so that an assessment can be undertaken.

Status reports are commissioned by COSEWIC through an open competition. A call for bids is periodically posted on this website both for selected candidate species, and also for species already assessed by COSEWIC that require a reassessment. You can register to be notified when new calls for bids are posted on the website.

For more information on candidate wildlife species, visit the COSEWIC wildlife species assessment: process, categories, and guidelines.

Part 2: COSEWIC candidate list

The highest priority wildlife species from the SSC candidate lists are reviewed and ranked by COSEWIC, and result in COSEWIC candidate list. COSEWIC bases its ranking on prioritization data submitted by each SSC. COSEWIC candidate list identifies the highest priority candidate wildlife species for status report production. Wildlife species included in this list include those not yet assessed by COSEWIC and those in the not at risk or data deficient categories, where new information suggests they may be at risk of extinction or extirpation from Canada.


2015 (4) wildlife species

Gillman's Goldenrod
Taxonomic group:
Vascular plants
Scientific name:
Solidago gillmanii
Common name:
Gillman's Goldenrod
Canadian range / known or potential jurisdictions:
Ontario
Proposed call for bids date:
2017
Rationale:
This plant is a Great Lakes endemic of shoreline sand dunes on Lake Michigan and northern Lake Huron in Ontario and three U.S. states. In Canada, it is restricted to two sites in Ontario: one on the southern shore of Manitoulin Island, and the other on an adjacent offshore island. The plant exists in small numbers, is only known from two sites, and occurs in a specialized, rare, and threatened habitat.
Hornless Oakworm Moth
Taxonomic group:
Arthropods
Scientific name:
Anisota finlaysoni
Common name:
Hornless Oakworm Moth
Canadian range / known or potential jurisdictions:
Ontario
Proposed call for bids date:
2018
Rationale:
This moth ranges in Canada only along the northeastern shore of Lake Ontario, Ontario. The species habitat includes oak woodland and dry forest edges, and may also persist in cleared land with scattered larger oak trees. The majority of this habitat has been historically lost to agriculture or development and there is increased pressure for land conversion to viticulture in the Prince Edward County region. Substantial threats from habitat loss through deforestation/fragmentation, larval mortality due to introduced biocontrol agent, pesticide application for gypsy moth or tent caterpillar control, and possibly also urban lighting.
Pompilid Wasp
Taxonomic group:
Arthropods
Scientific name:
Ceropales bipunctata
Common name:
Pompilid Wasp
Canadian range / known or potential jurisdictions:
New Brunswick, Ontario, Prince Edward Island, Quebec
Proposed call for bids date:
2017
Rationale:
This species is a large, distinctive wasp that has apparently disappeared from much of eastern Canada. Its former range stretched from southern Ontario, east through southern Quebec, New Brunswick and Prince Edward Island. Godsoe (2003) concluded that the wasp has declined to the point of extirpation in Ontario; however, a 2005 record from the Kingston area indicates that it may still persist there, albeit extremely sparsely. Before Packer's 2005 record (Queen's University Biological Station, 50 km N of Kingston), the last record for Ontario was from Kingston in 1957. Godsoe (2003) stated that there are few records from other Canadian provinces since the 1950s, including: NB, 1939; PEI, 1940; QU, 1921, but the wasp has recently been observed at two sites in coastal New Brunswick. The cause of the decline is unknown.
Reversed Haploa
Taxonomic group:
Arthropods
Scientific name:
Haploa reversa
Common name:
Reversed Haploa
Canadian range / known or potential jurisdictions:
Ontario
Proposed call for bids date:
2017
Rationale:
This species is restricted to savannah habitats of the Carolinian zone of southern Ontario, where it is currently known from three localities. In adjacent regions of Ohio, it is restricted to tallgrass prairie. Larvae initially feed only on Lithospermum caroliniense (ranked Sensitive in Ontario), which is restricted to open, non-wooded sandy prairie where re-forestation would be detrimental. Two species of Lepidoptera that also used these kinds of habitat have become extirpated in Canada over the past three decades (Frosted Elfin, Karner Blue).

2016 (9) wildlife species

Ashy Pebblesnail
Taxonomic group:
Molluscs
Scientific name:
Fluminicola fuscus
Common name:
Ashy Pebblesnail
Canadian range / known or potential jurisdictions:
British Columbia
Proposed call for bids date:
2017
Rationale:
This freshwater snail was historically sporadically distributed in the Columbia River and a few major tributaries in five states and BC. Populations have been lost from most tributaries and almost all the Columbia River itself; impoundment, nutrient enhancement, warming, and loss of rocky substrate are threats. In Canada, this snail was collected approximately 150 years ago, and has not been seen since until it was recently (2012-2014) collected in the Columbia River near Trail, BC. It is uncertain if it still lives at the historical occupied Kootenay and Wigwam river sites in BC.
Cypress Hills Mountainsnail
Taxonomic group:
Molluscs
Scientific name:
Oreohelix stantoni
Common name:
Cypress Hills Mountainsnail
Canadian range / known or potential jurisdictions:
Alberta, Saskatchewan
Proposed call for bids date:
2017
Rationale:
This large land snail is most likely endemic to Cypress Hills Interprovincial Park, Alberta and Saskatchewan; it was previously considered a synonym of Oreohelix strigosa cooperi, but new information disputes the synonymization. Originally collected in 1903 and then again in the 1930s, no one has looked for this snail until 2009 , when it was found to be confined to higher elevations, in grasslands and at the edges of woody patches. The Cypress Hills are "islands" of habitat within the prairies distant from similar uplands in the US and the Rocky Mountain Foothills in Alberta.
Domed Disc
Taxonomic group:
Molluscs
Scientific name:
Discus patulus
Common name:
Domed Disc
Canadian range / known or potential jurisdictions:
Ontario
Proposed call for bids date:
2017
Rationale:
This medium-sized land snail (maximum ~ 9.6 mm shell diameter) is sporadically known in Canada only from southern Ontario, where it is at the northern limit of its global range. The known distribution has since increased north and east within southern Ontario by the discovery of a few new as well as old, museum records. The majority of records are decades to over a century old (1890s to 1953). Nowhere was it especially common, and most of the range of this species is in the heavily modified landscape of southwest Ontario near the shore of Lake Erie. It lives in upland woodlands and burrows in the soft, rotten wood of logs, under loose bark, and in moist leaf litter. There is no chance of rescue from the US, as the nearest populations lie across Lake Erie.
Grappletail
Taxonomic group:
Arthropods
Scientific name:
Octogomphus specularis
Common name:
Grappletail
Canadian range / known or potential jurisdictions:
British Columbia
Proposed call for bids date:
2018
Rationale:
This species is a small, delicate, slender clubtail dragonfly that ranges mostly west of the Coast, Cascade and Sierra Nevada mountains from extreme southwestern mainland British Columbia south through Washington, Oregon, Nevada (one locality) and California to Baja California in Mexico. It is the only species in the genus Octogomphus and the genus has no close relatives in western North America. The dragonfly lives only along small streams flowing rapidly out of warm lakes in the hills bordering the lower Fraser Valley, BC. All but one of the five to six known sites are on the north side of the Fraser River between Harrison and Pitt lakes. The sole known site south of the river is at the outlet of Cultus Lake. Because of its restricted range in BC, its few populations and the vulnerability of its habitat, it is threatened by housing developments, road-building and logging.
Lesser Yellowlegs
Taxonomic group:
Birds
Scientific name:
Tringa flavipes
Common name:
Lesser Yellowlegs
Canadian range / known or potential jurisdictions:
Alberta, British Columbia, Canadian Wildlife Service, Manitoba, Northwest Territories, Nunavut, Ontario, Parks Canada, Quebec, Saskatchewan, Yukon Territory
Proposed call for bids date:
2017
Rationale:
This species is a medium-sized shorebird that breeds in the boreal forest, and winters across much of South America. Aside from Alaska, the entire breeding range is in Canada, extending from Yukon and British Columbia east to northern Ontario, and possibly into Quebec. Surveys of breeding, migratory, and wintering populations all indicate substantial declines over the past few decades. The best estimate of long-term trends suggests a population decrease of 29% over three generations, while the most recent data indicate an accelerating decline of 61% over three generations. Threats to the species include intensive hunting in parts of the Caribbean and possibly South America, expansion of aquaculture in wintering areas, alteration in coastal wintering habitat due to sedimentation, and logging of breeding habitat.
Manitoba Oakworm Moth
Taxonomic group:
Arthropods
Scientific name:
Anisota manitobensis
Common name:
Manitoba Oakworm Moth
Canadian range / known or potential jurisdictions:
Manitoba
Proposed call for bids date:
2017
Rationale:
This moth is a near endemic to Canada and its range includes only southern Manitoba. In the United States it occurs at only one site in northernmost Minnesota, and possibly adjacent North Dakota. The larvae feed only on bur oak, and require open woodland or parkland habitat. Much of this habitat has been converted to agriculture, and although this species was common enough to cause noticeable defoliation of oaks prior to the 1960s, it is now rare. Annual searches in the species' former range between 1989 and 1996 recorded only a single population. Before the 1996 collection, the most recent record is from 1976.
Nevada Buckmoth
Taxonomic group:
Arthropods
Scientific name:
Hemileuca nevadensis
Common name:
Nevada Buckmoth
Canadian range / known or potential jurisdictions:
Alberta, Manitoba, Saskatchewan
Proposed call for bids date:
2017
Rationale:
This species is a large, charismatic day-flying moth in the giant silkworm family (Saturniidae). In Canada, this species is restricted to two types of specific habitats where it occurs as very isolated populations. In Alberta, Saskatchewan and western Manitoba, it occurs only on sand dunes of the parkland ecoregion where stunted aspen trees predominate. In southeastern Manitoba and adjacent Ontario, this species is known from several populations in mesic tallgrass prairie/carr complexes with abundant willows. Such habitat secialization and a small geographic range suggest that the species may be at risk.
Purple Wartyback
Taxonomic group:
Molluscs
Scientific name:
Cyclonaias tuberculata
Common name:
Purple Wartyback
Canadian range / known or potential jurisdictions:
Ontario
Proposed call for bids date:
2017
Rationale:
This rare freshwater mussel was known historically from the Ausable, Sydenham, Thames and Detroit rivers as well as the western basin of Lake Erie but has disappeared from the latter two areas because of the invasion of the Great Lakes by dreissenid mussels in the 1980s. Ongoing threats include various sources of urban and agricultural pollution.
Suckley's Cuckoo Bumble Bee
Taxonomic group:
Arthropods
Scientific name:
Bombus suckleyi
Common name:
Suckley's Cuckoo Bumble Bee
Canadian range / known or potential jurisdictions:
Alberta, British Columbia, Manitoba, Newfoundland and Labrador, Northwest Territories, Ontario, Saskatchewan
Proposed call for bids date:
2017
Rationale:
This bee has a broad distribution centred in western North America, including the Yukon and Northwest Territories and also including several scattered localities in the northeast. It occurs in the Mountain West from California and Colorado to Alaska, east to the Canadian Great Plains, and likely into Newfoundland. Approximately two thirds of its range is in Canada. This bee, however, has been declining steadily since the 1940s but has suffered declines of greater than 90% over the last decade. Its range and persistence have also declined; however, some historical sites have not been re-sampled and in recent times there are records of this species for only about six localities. Suckley's Bumble Bee is a social parasite (cuckoo) of other bumble bees and its decline may be linked to the decline of B. occidentalis, its primary known host in the western part of its range. It has also been recorded in colonies of B. terricola, B. rufocinctus, B. fervidus, B. appositus and B. nevadensis (Williams et al. 2014). Thus healthy populations of B. suckleyi require healthy populations of local host species.

2017 (14) wildlife species

[a moth]
Taxonomic group:
Arthropods
Scientific name:
Agrotis arenarius
Common name:
[a moth]
Canadian range / known or potential jurisdictions:
Nova Scotia
Proposed call for bids date:
2018
Rationale:
This species is a Noctuid moth endemic to Sable Island, Nova Scotia. The moth has an annual life cycle and is dependent on Ammophila grasses. These grasses are native to coasts of the North Atlantic and are found almost exclusively on the first line of coastal sand dunes, have creeping underground stems or rhizomes allow them to thrive under conditions of shifting sands and high winds, and help to stabilize and prevent coastal erosion. Many species in this genus are of great importance as cutworms, major agricultural pests whose larvae hide by day and emerge at night to feed. Not all species in this genus are agricultural pests.
Brassy Minnow
Taxonomic group:
Fishes (freshwater)
Scientific name:
Hybognathus hankinsoni
Common name:
Brassy Minnow
Canadian range / known or potential jurisdictions:
Alberta, British Columbia, Manitoba, Ontario, Quebec, Saskatchewan
Proposed call for bids date:
2018
Rationale:
This fish is a small-bodied member of the minnow family (Cyprinidae). It is distributed broadly throughout Canada and found in five National Freshwater Biogeographical Zones (Pacific, Western Arctic, Saskatchewan-Nelson Rivers, and Missouri River in Western Canada and Great Lakes-Upper St. Lawrence River in Eastern Canada). The status of many populations of this species in the four Western zones may be in decline. Brassy Minnow was recently designated as a Threatened species in Alberta, and is at risk in British Columbia. Sub-populations in Fort McMurray, Alberta, and throughout British Columbia have become locally extirpated in the past decade. In addition, there is only a single population in the Milk River basin in Alberta (a tributary of the Missouri River). There is no indication that it is at risk in the Great Lakes-Upper St. Lawrence zone. The primary threats include urbanization, invasive species, oil, gas and mineral exploration and extraction, agricultural and forestry effluents, and drought associated with climate change.
Cupped Fringe Lichen
Taxonomic group:
Lichens
Scientific name:
Heterodermia hypoleuca
Common name:
Cupped Fringe Lichen
Canadian range / known or potential jurisdictions:
Ontario
Proposed call for bids date:
2018
Rationale:
This species is a rare gray leafy lichen that forms colonies up to about 5 cm in diameter distinguished by cup-shaped fruit bodies and woolly lobe tips. It is found in southern Ontario and southern Quebec as well as in the New England states of the USA. It appears to be exhibiting a range contraction towards Canada. The lichen grows on old deciduous trees in shaded valleys and forested floodplains. It is threatened by deforestation, land use developments, and climate change.
Davis' Shieldback
Taxonomic group:
Arthropods
Scientific name:
Atlanticus davisi
Common name:
Davis' Shieldback
Canadian range / known or potential jurisdictions:
Ontario
Proposed call for bids date:
2018
Rationale:
This species is a katydid found in savannahs, dry woodlands, and forest edges. It is presently known from at least three locations in Norfolk County, Ontario. It's Canadian range is believed to be limited to the Norfolk Sand Plain. Threats to this species are threats to savannah habitat, including conversion to farmland, in-planting of conifers into deciduous habitats, and forest succession in the absence of fire. It is part of a large suite of oak-savannah associated species at risk in southern Ontario. The species is active from the second week of July to the second week of September. Surveys are by sweep netting in mid-morning or early evening.
Dense Draba
Taxonomic group:
Vascular plants
Scientific name:
Draba pycnosperma
Common name:
Dense Draba
Canadian range / known or potential jurisdictions:
Canadian Wildlife Service, Newfoundland and Labrador, Nova Scotia, Parks Canada, Quebec
Proposed call for bids date:
2018
Rationale:
This herb is endemic to the Gulf of St. Lawrence in Canada in the provinces of Quebec, Newfoundland, and Nova Scotia. It occurs in open calcareous rock habitats, such as escarpments or sea cliffs. The survival of the species appears to be at risk due to the fact that the total number of plants is very small (715 in 2009), there are only a few small subpopulations, and they occupy a small area. The decline in these populations is mainly due to habitat alteration or destruction, associated with trampling, erosion, invasive species, and quarrying.
Fan Moss
Taxonomic group:
Mosses
Scientific name:
Forsstroemia trichomitria
Common name:
Fan Moss
Canadian range / known or potential jurisdictions:
Ontario
Proposed call for bids date:
2018
Rationale:
This moss is a large epiphytic species that was recorded in southern Ontario several times prior to 1900, yet despite its distinctive appearance and size, had not been recorded again until 2011 and again in 2014. This suggests a significant population decline, one that is supported by an apparent species' decline also in northeastern US.
Gray-cheeked Thrush minimus subspecies
Taxonomic group:
Birds
Scientific name:
Catharus minimus minimus
Common name:
Gray-cheeked Thrush minimus subspecies
Canadian range / known or potential jurisdictions:
Newfoundland and Labrador
Proposed call for bids date:
2018
Rationale:
This species breeds only on the island of Newfoundland and a small portion of adjacent Labrador and possibly extreme eastern Quebec. Recent studies support the genetic, geographic, and morphological distinctions between this subspecies and the Northern Gray-cheeked Thrush (C. m. aliciae), which breeds across the boreal forest from Alaska to Labrador. The Newfoundland Gray-cheeked Thrush nests primarily in old-growth Balsam Fir forests, as well as shrubby deciduous thickets. Although it was widespread and numerous in Newfoundland until at the least mid-1980s, it has undergone a rapid decline and is now considered rare, with a provincial status of Threatened. Breeding Bird Survey data indicate a population decline of 68% between 2005 and 2015, and an overall 90% loss over the past 35 years. This is likely a function of multiple threats, most notably nest predation by Red Squirrel, loss of old growth forest nesting habitat, and deforestation of wintering grounds in Colombia.
Killdeer
Taxonomic group:
Birds
Scientific name:
Charadrius vociferus
Common name:
Killdeer
Canadian range / known or potential jurisdictions:
Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, Northwest Territories, Nunavut, Ontario, Prince Edward Island, Quebec, Saskatchewan, Yukon Territory
Proposed call for bids date:
2018
Rationale:
This species is among the most widespread of North America's shorebirds, with a breeding range that includes all provinces and territories except Nunavut and Newfoundland and Labrador. The species is well known for its broken-wing displays designed to lure potential predators away from nests, as well as for the strident call from which it derives its name. It nests on the ground in open habitats and in some areas has shown considerable tolerance to disturbance. The Canadian population has, however, declined by 76% since 1970, equivalent to a decrease of 30% over three generations. Urbanization and agricultural practices likely pose the greatest threats overall, with specific concerns including an increase in predators in urban and suburban areas, and proliferation of invasive plants.
Meadow Thistle
Taxonomic group:
Vascular plants
Scientific name:
Cirsium scariosum
Common name:
Meadow Thistle
Canadian range / known or potential jurisdictions:
British Columbia, Quebec
Proposed call for bids date:
2018
Rationale:
This species is a perennial herb that flowers, sets seed and then dies. It occurs in six western States and into Canada in southwestern Alberta and southeast British Columbia, and is disjunct in Quebec. The Alberta and British Columbia population is known from 15 sites, but has been observed to be more abundant in British Columbia. In Alberta, decline has been observed due to a seed-head weevil introduced to control other species of thistles by reducing seed production. In Quebec, the species is restricted to a narrow strip between the beach and the forest on four islands of the Mingan archipelago and one site on the mainland on the north shore of the Gulf of St. Lawrence. The Quebec population is small and the species seems to be limited by its poor competitiveness, its relatively reduced fertility, the short distance that the seeds travel on average, their high rate of predation, and natural disturbances. It is presently maintained by seeding and by unearthing plants after storms but sites are also being lost and disturbed by cottage development.
Noisy Shieldback
Taxonomic group:
Arthropods
Scientific name:
Steiroxys strepens
Common name:
Noisy Shieldback
Canadian range / known or potential jurisdictions:
British Columbia
Proposed call for bids date:
2018
Rationale:
This species ranges on southern Vancouver Island and is known only from near Victoria, BC. The Vancouver Island populations are disjunct from the nearest populations south in western Oregon. There are no known records for the species in Washington State. This distribution pattern is common to several other insects and many plants and does not indicate a recent introduction to Canada. The Canadian population and many Oregonian populations are found in rare Garry oak woodland and associated meadows. The only known Canadian population (in Victoria) is in a small municipal park that is degraded by historical gardening and infrastructure development, a road, heavy off-trail foot traffic, and invasive plants. All known Canadian specimens of this species are female. The presence of parthenogenic populations is common to other species in the genus Steiroxys.
Ruddy Turnstone, morinella subspecies
Taxonomic group:
Birds
Scientific name:
Arenaria interpres morinella
Common name:
Ruddy Turnstone, morinella subspecies
Canadian range / known or potential jurisdictions:
Northwest Territories, Nunavut, Yukon Territory
Proposed call for bids date:
2018
Rationale:
This species is a medium-sized Holarctic-breeding shorebird that feeds predominantly by using its stout, slightly upturned bill to flip over pebbles, shells, and seaweed. The two subspecies occurring in Canada differ in distribution, plumage, morphometrics, as well as in migration routes and wintering areas. Those breeding in the high arctic (A. i. interpres) winter in western Europe and northwestern Africa, and are not proposed for assessment at this time. Those breeding south and west of north Devon Island, Nunavut, as well as in Northwest Territories and Yukon, are A. i. morinella, and winter along the Pacific and Atlantic coasts of North and South America. Migration monitoring surveys indicate that this population declined by 74% between 1974 and 2014, equivalent to a three-generation decline of 34%. Causes for the decline remain largely unknown, but are likely to include silt deposition and development of coastal wintering habitat, and overgrazing by geese on the breeding grounds.
Sable Island Beetle
Taxonomic group:
Arthropods
Scientific name:
Tricholochmaea sablensis
Common name:
Sable Island Beetle
Canadian range / known or potential jurisdictions:
Nova Scotia
Proposed call for bids date:
2018
Rationale:
This species appears to be a post-glacial relict species found only on Sable Island, Nova Scotia. It has been collected from bog cranberry (Vaccinmium macrocarpon), which is restricted to a cranberry bog near a small freshwater lake on Sable Island. The lake, which had a salinity of 25 ppm was less saline than any of the surrounding lakes. Collecting on Sable Island in 1976-77 and 1989 failed to find any on Sable Island and recent work in 2004 has also failed to turn up any specimens, casting some doubt on whether the species is still extant.
Scaly Fringe Lichen
Taxonomic group:
Lichens
Scientific name:
Heterodermia squamulosa
Common name:
Scaly Fringe Lichen
Canadian range / known or potential jurisdictions:
New Brunswick, Nova Scotia
Proposed call for bids date:
2018
Rationale:
The species is endemic to eastern North America and known in Canada only from Nova Scotia. It is a conspicuous lichen and has not yet been found in New Brunswick or Quebec despite searches. The lichen is leafy and greenish-gray growing up to 12 cm in diameter on deciduous trees in old growth or late successional humid forests. Forest harvesting for biomass or other purposes as well as climate change are threats to this lichen.
Steelhead Trout
Taxonomic group:
Fishes (marine)
Scientific name:
Oncorhynchus mykiss
Common name:
Steelhead Trout
Canadian range / known or potential jurisdictions:
British Columbia, Canadian Wildlife Service, Department of Fisheries and Oceans, NWC, Parks Canada, Pacific Ocean
Proposed call for bids date:
2017
Rationale:
In North America, Rainbow trout (Oncorhynchus mykiss) are native to the west coast. In B.C., they occur in two genetic lineages (possible subspecies), referred to as Coastal Rainbow Trout (O.m. irideus), and in the Thompson-Chilcotin as the Columbia Redbanded Trout or Kamloops Trout (O.m. gairdneri). In both lineages, Rainbow Trout occur as freshwater resident and anadromous (Steelhead Trout) subpopulations or life history types. The spawning populations of Steelhead Trout have been closely monitored for several decades in BC. Returns to the Thompson-Chilcotin rivers' area have declined considerably since the mid-1990s suggesting the species is at risk.

For a full copy of the COSEWIC candidate species rationale, please contact us at ec.cosepac-cosewic.ec@canada.ca.

Part 3: species specialist subcommittees’ candidate list

Each SSC annually prepares and maintains a SSC candidate list of wildlife species that it considers at risk of extinction or extirpation nationally. Species on the SSC candidate lists are ranked into three priority groups by the SSCs to reflect the relative urgency with which each wildlife species should receive a COSEWIC assessment.

  • group 1 contains wildlife species of highest priority for assessment by COSEWIC, and includes wildlife species suspected to be extirpated from Canada
  • groups 2 and 3 contain wildlife species that are of intermediate and lower priority for COSEWIC assessment, respectively.

Rationales for inclusion of wildlife species on the SSC candidate lists differ among the taxonomic groups considered by COSEWIC, reflecting the vast differences in their life history, and differences in our knowledge about the species.

Wildlife species in bold have been selected by COSEWIC for assessment and are currently planned for inclusion in a future call for bids.

Amphibians (25)


Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Cope's Grey Treefrog Dryophytes chrysoscelis MB
Group 2 - mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Northwestern Salamander Ambystoma gracile BC
Spotted Salamander Ambystoma maculatum MB, NB, NL, NS, ON, PE, QC
Canadian Toad Bufo hemiophrys AB, CWS, MB, NT, Parks, SK
Ensatina Ensatina eschscholtzii BC
Four-toed Salamander Hemidactylium scutatum NB, NS, ON, QC
Gray Treefrog Hyla versicolor MB, NB, NS, ON, PE, QC
American Bullfrog Lithobates catesbeianus NB, NS, ON, PE, QC
Mink Frog Lithobates septentrionalis NB, NS, ON, PE, QC
Eastern Red-backed Salamander Plethodon cinereus NB, NS, ON, PE, QC
Columbia Spotted Frog Rana luteiventris AB, BC, WMAC-NS, YFWMB , YT
Pickerel Frog Rana palustris NB, NS, ON, PE, QC
Plains Spadefoot Spea bombifrons AB, CWS, MB, Parks, SK
Rough-skinned Newt Taricha granulosa BC
Group 3 - low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Blue-spotted Salamander Ambystoma laterale MB, NB, NL, NS, ON, PE, QC
Long-toed Salamander Ambystoma macrodactylum AB, AB, BC, BC, Parks
American Toad Anaxyrus americanus MB, NB, NL, NS, NU, ON, PE, QC
Northern Two-lined Salamander Eurycea bislineata NL, ON, QC
Green Frog Lithobates clamitans NB, NS, ON, PE, QC
Wood Frog Lithobates sylvaticus AB, BC, MB, NB, NL, NS, NT, ON, PE, QC, SK, YT
Eastern Newt Notophthalmus viridescens NB, NL, NS, ON, PE, QC
Western Red-backed Salamander Plethodon vehiculum BC
Spring Peeper Pseudacris crucifer MB, NB, NS, ON, PE, QC
Boreal Chorus Frog Pseudacris maculata AB, BC, MB, NT, ON, QC, SK, YT
Northern Pacific Treefrog Pseudacris regilla BC

Arthropods (104)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Hoary Edge Achalarus lyciades ON
[a moth] Agrotis arenarius NS
[a bee] Andrena caerulea BC
Hornless Oakworm Moth Anisota finlaysoni ON
Manitoba Oakworm Moth Anisota manitobensis MB
Davis' Shieldback Atlanticus davisi ON
Protean Shieldback Atlanticus testaceus ON
Suckley's Cuckoo Bumble Bee Bombus suckleyi AB, BC, MB, NL, NT, ON, SK
[a bee] Calliopsis scitula BC
Johnson's Hairstreak Callophrys johnsoni BC
Pacific Coast Tiger Beetle Cicindela bellisimi BC
[a moth] Copablepharon viridisparsa AB, CWS, MB, Parks, SK
White-winged Grasshopper Dissosteira spurcata BC
[a moth] Eucosma sableana NS
Duke's Skipper Euphyes dukesi ON
Reversed Haploa Haploa reversa ON
Nevada Buckmoth Hemileuca nevadensis AB, MB, SK
[a mountain beaver flea] Hystrichopsylla schefferi BC
[a robber fly] Lasiopogon pacificus BC
Edith's Copper Lycaena editha AB, BC
Strecker's Giant Skipper Megathymus streckeri AB
[a spur-throat grasshopper] Melanoplus gaspesiensis QC
Grappletail Octogomphus specularis BC
Valley Grasshopper Oedaleontus enigma BC
[a carabid beetle] Omophron labiatum NS
Golden Borer Moth Papaipema cerina ON
Canadian Philaronia Philaronia canadensis CWS, ON, Parks
Oak Hairstreak Satyrium favonius ON
Noisy Shieldback Steiroxys strepens BC
Long-spined Jerusalem Cricket Stenopelmatus longispinus BC
Sable Island Beetle Tricholochmaea sablensis NS
[a bee] Triepeolus brittaini NB, NS, PE
Group 2 - mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Barren's Dagger Moth Acronicta albarufa MB, ON
Beller's Ground Beetle Agonum belleri BC
Oslar's Roadside Skipper Amblyscirtes oslari AB, SK
[a bee] Andrena edwardsi BC
Parasitic Wasp Apantes samarshalli ON
[a micromoth] Argyresthia flexilis AB, BC
(common name not available) Austrotyla borealis AB
[a bee] Bombus morrisoni BC
[a bee] Bombus vandykei BC
[a bee] Bombus variabilis QC
Moss's Elfin Callophrys mossii BC
(common name not available) Cambarus bartonii NB, ON, QC
Whitney's Underwing Catocala whitneyi MB
Hoffmann's Checkerspot Chlosyne hoffmanni BC
[a moth] Coleotechnites lewisi AB
[a moth] Copablepharon hopfingerii BC
Eastern Tailed Blue (British Columbia population) Cupido comyntas BC
(common name not available) Dendrotettix quercus ON
[a mantidfly] Dicromantispa sayi ON
[a bee] Dufourea monardae ON
(common name not available) Ellipes gurneyi ON
Ghost Tiger Beetle Ellipsoptera lepida AB, MB, ON, SK
(common name not available) Eristalis brousii not available
Propertius Duskywing Erynnis propertius BC
(common name not available) Eumenes bollii not available
(common name not available) Euxoa unica SK
Pahaska Skipper Hesperia pahaska SK
(common name not available) Hesperotettix viridis BC
[A Midget Funnel-web Tarantula] Hexura picea BC
Carr's Diving Beetle Hydroporus carri AB
[a lady beetle] Hyperaspis brunnescens NS
[a bee] Lasioglossum yukonae BC, YT
(common name not available) Lasionycta macleani BC
Minor Ground Mantid Litaneutria minor AB, BC, SK
(common name not available) Lypoglossa manitobae not available
[a fly] Megaphorus willistoni BC
(common name not available) Melanoplus digitifer BC
(common name not available) Melanoplus rugglesi BC
(common name not available) Melanoplus scudderi ON
Rocky Mountain Grasshopper Melanoplus spretus AB, SK
(common name not available) Melanoplus walshii ON
(common name not available) Metator nevadensis BC
Contracted Bombing Beetle Metrius contractus contractus BC
[a lady beetle] Naemia seriata NB, NS
(common name not available) Nebria charlottae BC
(common name not available) Nebria louisae BC
[a lady beetle] Nephus intrusus ON
[a robber fly] Nicocles rufus BC
Simius Roadside Skipper Notamblyscirtes simius SK
(common name not available) Oecanthus laricis ON
Gaspé Arctic Oeneis bore gaspeensis QC
[a beetle] Omus dejeanii BC
(common name not available) Pachybrachis calcaratus not available
Indra Swallowtail Papilio indra BC
(common name not available) Philonthus turbo not available
(common name not available) Polites rhesus not available
Sandhill Skipper Polites sabuleti BC
Gooseneck Barnacle Pollicipes polymerus BC
(common name not available) Prosimulium doveri BC
[a carabid Beetle] Scaphinotus merkeli BC
Leadplant Flower Moth (or False Indigo Flower Moth) Schinia lucens MB
[a lady beetle] Scymnus cervicalis ON
[a lady beetle] Scymnus fraternus ON, QC
[a lady beetle] Scymnus securus ON
(common name not available) Sogda enigma not available
Bremner's Zerene Fritillary Speyeria zerene bremnerii BC
(common name not available) Stereus arenarius AB
[a robber fly] Stichopogon fragilis BC
(common name not available) Stygobromus quatsinensis BC
(common name not available) Trichiusa robustula ON
Olympic Peninsula Millipede Tubaphe levii BC
(common name not available) Xanthorhoe clarkeata BC

Birds (21)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Ruddy Turnstone, morinella subspecies Arenaria interpres morinella NT, NU, YT
Gray-cheeked Thrush minimus subspecies Catharus minimus minimus NL
Killdeer Charadrius vociferus AB, BC, MB, NB, NL, NS, NT, NU, ON, PE, QC, SK, YT
Short-billed Dowitcher Limnodromus griseus AB, BC, CWS, MB, NB, NL, NS, NT, NU, ON, Parks, PE, QC, SK, YT
Whimbrel Numenius phaeopus AB, BC, MB, NB, NL, NS, NT, NU, ON, PE, QC, SK, YT
Lesser Yellowlegs Tringa flavipes AB, BC, CWS, MB, NT, NU, ON, Parks, QC, SK, YT
Group 2 - mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Stilt Sandpiper Calidris himantopus AB, CWS, MB, NT, NU, ON, Parks, QC, SK, YT
Pectoral Sandpiper Calidris melanotos AB, BC, CWS, MB, NB, NL, NS, NT, NU, ON, Parks, PE, QC, SK, YT
Yellow-billed Loon Gavia adamsii AB, BC, GRRB, MB, NT, NU, NWMB, QC, SRRB, WMAC-NS, WMAC-NWT, WRRB, YFWMB , YT
Long-billed Dowitcher Limnodromus scolopaceus AB, BC, CWS, MB, NT, ON, Parks, QC, SK, YT
American Golden-plover Pluvialis dominica AB, BC, CWS, MB, NB, NL, NS, NT, NU, ON, Parks, PE, QC, SK, YT
Field Sparrow Spizella pusilla ON, QC, SK
Wandering Tattler Tringa incana BC, CWS, NT, Parks, YT
Group 3 - low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Clark's Grebe Aechmophorus clarkii AB, CWS, MB, Parks, SK
Yellow-billed Cuckoo Coccyzus americanus CWS, ON, Parks, QC
Black-billed Cuckoo Coccyzus erythropthalmus AB, CWS, MB, NB, NS, ON, Parks, QC, SK
Sooty Grouse Dendragapus fuliginosus BC, CWS, Parks
Least Flycatcher Empidonax minimus AB, BC, CWS, MB, NB, NL, NS, NT, NU, ON, Parks, PE, QC, SK, YT
American Kestrel Falco sparverius AB, BC, MB, NB, NL, NS, NT, ON, PE, QC, SK, YT
Connecticut Warbler Oporornis agilis AB, BC, CWS, MB, NT, NU, ON, Parks, QC, SK
Prairie Warbler Setophaga discolor CWS, ON, Parks

Freshwater fishes (71)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
European Whitefish Coregonus lavaretus CWS, DFO, NT, Parks, YT
Blackfin Cisco Coregonus nigripinnis DFO, ON
Pacific Lamprey Entosphenus tridentatus BC
Brassy Minnow Hybognathus hankinsoni AB, BC, MB, ON, QC, SK
Chestnut Lamprey (Great Lakes - Upper St. Lawrence populations) Ichthyomyzon castaneus CWS, DFO, ON, Parks, QC
Northern Brook Lamprey (Saskatchewan-Nelson River populations) Ichthyomyzon fossor MB
Silver Lamprey Ichthyomyzon unicuspis MB, ON
Blackchin Shiner Notropis heterodon MB, ON, QC
Coastal Cutthroat Trout Oncorhynchus clarkii clarkii BC, DFO, NJFMC, Parks, YT
Plains Sucker (Saskatchewan - Nelson River populations) Pantosteus jordani AB, CWS, DFO, Parks, SK
Arctic Grayling (Western Arctic populations) Thymallus arcticus AB, BC, MB, NT, NU, SK, YT
Group 2 - mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Cisco (Lake Herring) Coregonus artedi AB, BC, MB, NT, NU, ON, QC, SK
Arctic Cisco Coregonus autumnalis BC, NT, NU, YT
Least Cisco Coregonus sardinella BC, NT, NU, YT
Banded Killifish (Mainland populations) Fundulus diaphanus MB, NB, NS, ON, PE, QC
Redbreast Sunfish Lepomis auritus DFO, NB
Northern Sunfish (Saskatchewan - Nelson River populations) Lepomis peltastes CWS, DFO, ON, Parks
Silver Redhorse Moxostoma anisurum AB, MB, ON, QC, SK
Golden Redhorse Moxostoma erythrurum MB, ON
Greater Redhorse Moxostoma valenciennesi ON, QC
Fourhorn Sculpin (Freshwater form) Myoxocephalus quadricornis CWS, DFO, FJMC, NL, NT, NU, NWMB, Parks, WRRB
Hornyhead Chub Nocomis biguttatus MB, ON
Brindled Madtom Noturus miurus ON
Bull Trout (Upper Yukon Watershed populations) Salvelinus confluentus BC, CWS, DFO, Parks, YT
Inconnu Stenodus leucichthys BC, NT, YT
Group 3 - low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Chiselmouth Acrocheilus alutaceus BC, DFO
Yellow Bullhead Ameiurus natalis ON, QC
Central Stoneroller Campostoma anomalum ON
Quillback Carpiodes cyprinus AB, MB, ON, QC, SK
Lake Whitefish (Mira River populations) Coregonus clupeaformis NS
Lake Whitefish (Simcoe Lake populations) Coregonus clupeaformis ON
Bloater Coregonus hoyi ON
Broad Whitefish Coregonus nasus BC, NT, NU, YT
Slimy Sculpin Cottus cognatus AB, BC, MB, NB, NL, NS, NT, NU, ON, PE, QC, SK, YT
Spoonhead Sculpin Cottus ricei AB, BC, FJMC, GRRB, HFTCC, MB, NT, ON, QC, SK, SRRB, WRRB, YFWMB , YT
Redfin Pickerel Esox americanus americanus CWS, DFO, Parks, QC
Muskellunge Esox masquinongy MB, ON, QC
Chain Pickerel Esox niger QC
Greenside Darter Etheostoma blennioides DFO, ON
Rainbow Darter Etheostoma caeruleum ON
Least Darter Etheostoma microperca ON
Tessellated Darter Etheostoma olmstedi ON, QC
Eastern Silvery Minnow Hybognathus regius ON, QC
Chestnut Lamprey (Saskatchewan - Nelson River populations) Ichthyomyzon castaneus CWS, DFO, MB, ON, Parks, SK
Bigmouth Buffalo (Great Lakes - Upper St. Lawrence Populations) Ictiobus cyprinellus DFO, ON
Black Buffalo Ictiobus niger DFO, ON, Parks
Brook Silverside Labidesthes sicculus ON, QC
Green Sunfish Lepomis cyanellus ON
Alaskan Brook Lamprey Lethenteron alaskense NT
Striped Shiner Luxilus chrysocephalus ON
Redfin Shiner Lythrurus umbratilis ON
Silver Chub (Saskatchewan - Nelson River populations) Macrhybopsis storeriana CWS, DFO, MB, Parks
Northern Pearl Dace Margariscus nachtiebi AB, BC, MB, NB, NL, NS, NT, ON, QC, SK
River Chub Nocomis micropogon ON
River Shiner Notropis blennius AB, MB, ON, SK
Ghost Shiner Notropis buchanani ON
Bigmouth Shiner Notropis dorsalis DFO, MB
Rosyface Shiner Notropis rubellus ON, QC
Weed Shiner Notropis texanus MB
Margined Madtom Noturus insignis DFO, ON, QC
Blackside Darter Percina maculata CWS, DFO, MB, ON, Parks, SK
Bluntnose Minnow Pimephales notatus MB, ON, QC
Round Whitefish Prosopium cylindraceum AB, BC, DFO, FJMC, GRRB, HFTCC, MB, NB, NL, NT, NU, NWMB, ON, Parks, QC, SK, SRRB, YFWMB , YT
Flathead Catfish Pylodictis olivaris DFO, ON
Eastern Blacknose Dace Rhinichthys atratulus CWS, DFO, NB, ON, Parks, QC
Leopard Dace Rhinichthys falcatus BC
Western Blacknose Dace Rhinichthys obtusus MB, ON, SK
Arctic Char Salvelinus alpinus DFO, FJMC, GRRB, HFTCC, MB, NB, NL, NT, NU, NWMB, Parks, QC, SRRB, YFWMB, YT
Bull Trout (Pacific populations) Salvelinus confluentus BC
Lake Trout Salvelinus namaycush AB, MB, NB, NL, NS, NT, NU, ON, QC, SK, YT
Longfin Smelt Spirinchus thaleichthys BC, CWS, DFO, Parks

Lichens (34)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Wright's Spotted Felt Lichen Dendriscosticta wrightii BC
Vole Felt Lichen Erioderma sorediatum BC
Cupped Fringe Lichen Heterodermia hypoleuca ON
Scaly Fringe Lichen Heterodermia squamulosa NB, NS
[a lichen] Lichenoidium sirosiphoidium BC, NL
White Fringe Lichen Moelleropsis nebulosa NB, NL, NS
[a lichen] Parmeliella parvula BC, NL, NS
Powdered Moon Lichen (Eastern population) Sticta limbata NB, NS, QC
Arctic Orangebush Lichen Xanthaptychia aurantiaca NT
Group 2 - mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Whiskered Millipede Lichen Anaptychia elbursiana AB, BC
Flexuous Golden Stubble Chaenotheca servitii NS
Desert Tumbleweed Lichen Circinaria hispida AB, BC, SK
[a lichen] Fuscopannaria ahlneri BC, NS
[a lichen] Fuscopannaria coralloidea BC
Desert Rock-scab Glypholecia scabra BC, NT, NU, SK
[a lichen] Pannaria tavaresii NS, ON
[a lichen] Peltula euploca BC
Red Oak Stubble Phaeocalicium minutissimum NB, QC
Crannied Orangebush Lichen Seirophora contortuplicata AB, BC, NT, YT
[a lichen] Sticta canariensis ON
Group 3 - low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
[a lichen] Bryoria carlottae BC
Mottled Horsehair Lichen Bryoria cervinula BC, NT
Rosin Whiskers Chaenothecopsis oregana AB
[a lichen] Dermatocarpon dolomiticum ON
[a lichen] Gypsoplaca macrophylla AB, BC, NT, YT
[a lichen] Heppia adglutianata ON
[a lichen] Leptogium corticola NS, ON
[a lichen] Leptogium hibernicum NS
[a lichen] Niebla cephalota BC
Ghost Antler Lichen Pseudevernia cladonia NB, NS, QC
Antler Lichen Pseudevernia consocians AB, MB, NS, ON
[a lichen] Punctelia borreri ON
[a lichen] Sclerophora amabilis BC, NB
[a lichen] Thyrea confusa BC, ON, QC

Marine fishes (10)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Pink Salmon Oncorhynchus gorbuscha BC, Pacific Ocean
Chum Salmon Oncorhynchus keta BC, NT, Pacific Ocean
Steelhead Trout Oncorhynchus mykiss BC, CWS, DFO, NWC, Parks, Pacific Ocean
Group 2 - mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Alewife Alosa pseudoharengus Atlantic Ocean, CWS, DFO, Parks
American Shad Alosa sapidissima Atlantic Ocean, DFO, NB, NS, Parks, PE, QC
Pollock Pollachius virens Atlantic Ocean, CWS, DFO, NB, NL, NS, Parks
Atlantic Mackerel Scomber scombrus Atlantic Ocean
Widow Rockfish Sebastes entomelas BC, CWS, DFO, NJFMC, Parks, Pacific Ocean
Shortspine Thornyhead Sebastolobus alascanus BC, CWS, DFO, Parks, Pacific Ocean
Greenland Shark Somniosus microcephalus Arctic Ocean, Atlantic Ocean
Group 3 - low priority candidates
No candidates currently listed

Marine mammals (9)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Guadalupe Fur Seal Arctocephalus townsendi CWS, DFO, Parks, Pacific Ocean
Baird's Beaked Whale Berardius bairdii Pacific Ocean
Cuvier's Beaked Whale Ziphius cavirostris Atlantic Ocean, Pacific Ocean
Group 2 - mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Hooded Seal Cystophora cristata Arctic Ocean, Atlantic Ocean, NU, NWMB
Bearded Seal Erignathus barbatus Arctic Ocean, DFO, FJMC, HFTCC, MB, NL, NT, NU, NWMB, ON, QC, YT
Pacific White-sided Dolphin Lagenorhynchus obliquidens Pacific Ocean
Sperm Whale Physeter macrocephalus NWMB
Group 3 - low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Northern Elephant Seal Mirounga angustirostris BC, Pacific Ocean
Harp Seal Phoca groenlandica Arctic Ocean, Atlantic Ocean, NL

Molluscs (38)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Purple Wartyback Cyclonaias tuberculata ON
Domed Disc Discus patulus ON
Ashy Pebblesnail Fluminicola fuscus BC
Big-tooth Whitelip Neohelix dentifera NB, ON, QC
Cypress Hills Mountainsnail Oreohelix stantoni AB, SK
Boreal Awning-clam Solemya borealis Atlantic Ocean
Group 2 - mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Globe Siltsnail Birgella subglobosa MB, ON, QC
Bugle Sprite Micromenetus dilatatus NS
Boundary Mountainsnail Oreohelix subrudis limitaris AB
Blunt Albino Physa Physella gyrina athearni AB
Ornamented Peaclam Pisidium cruciatum ON
Corpulent Rams-horn Planorbella corpulenta MB, ON
Whiteaves's Capacious Rams-horn Planorbella corpulenta whiteavesi ON
Western Arctic Stagnicola Stagnicola kennicotti NT, NU
Bronze Pinecone Strobilops aeneus MB, NB, NS, ON
Loosely-coiled Valve Snail Valvata lewisi ontariensis ON
Pyramid Dome Ventridens intertextus ON
Velvet Wedge Xolotrema denotatum ON
Group 3 - low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Bark Snaggletooth Gastrocopta corticaria NB, ON, QC
Lake Superior Rams-horn Helisoma anceps royalense MB, ON
Fluted Shell Lasmigona costata MB, ON, QC
Tidewater Mucket Leptodea ochracea NB, NS
Eastern Pearl Mussel Margaritifera margaritifera NB, NL, NS, PE, QC
Yellow Globelet Mesodon clausus ON
Rotund Physa Physella columbiana BC
Haldeman's Physa Physella concolor BC
Grain physa Physella hordacea BC, DFO
Twisted Physa Physella lordi AB, BC
Nuttall's Physa Physella nuttalli BC
Tiny Peaclam Pisidium insigne AB, BC, ON, PE
Slender Walker Pomatiopsis lapidaria ON
Pimpleback Quadrula pustulosa ON
Mountain Marshsnail Stagnicola montanensis AB
Calabash Pondsnail Stagnicola walkeriana ON
Coldwater Pondsnail Stagnicola woodruffi ON
Deertoe Truncilla truncata ON
Purplecap Valvata Valvata perdepressa ON
Globose Dome Ventridens ligera ON

Mosses (21)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Orkney Notchwort Anastrepta orcadensis BC
[a liverwort] Apotreubia hortoniae BC
Fan Moss Forsstroemia trichomitria ON
Velenovsky's Moss Hilpertia velenovskyi BC, NT, NU
Woods Whipwort Mastigophora woodsii BC
[a moss] Sphagnum cyclophyllum NS
Group 2 - mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Great Bear Lake Sieve-tooth Moss Coscinodon arctolimnius NT
[a moss] Gollania turgens BC, YT
[a moss] Trematodon asanoi BC
Group 3 - low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Pacific Volcano Moss Brachydontium olympicum BC, YT
[a moss] Buxbaumia minakatae NL, NS, ON
Blunted Earwort Diplophyllum obtusatum NL, ON, QC
Schleicher's Silk Moss Entodon schleicheri AB, BC, NT
[a moss] Fabronia ciliaris MB
Pygmy Pocket Moss Fissidens exilis BC, NS, ON, QC
River Scalewort Frullania riparia QC
Funaria Moss Funaria flavicans ON
Mountain Brook Moss Hygrohypnum montanum NB, NL, NS, PE, QC
Delicate Luster Moss Isopterygium tenerum NS
Porter's Twisted Moss Tortula porteri ON
[a moss] Trematodon longicollis ON

Reptiles (12)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Smooth Greensnake Opheodrys vernalis MB, NB, NS, ON, PE, QC, SK
Group 2 - mid priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Ring-necked Snake Diadophis punctatus MB, NB, NS, ON, QC
Northern watersnake Nerodia sipedon sipedon ON, Parks, QC
DeKay's Brownsnake Storeria dekayi ON, Parks, QC
Plains Gartersnake Thamnophis radix AB, MB, SK
Group 3 - low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Green Sea Turtle Chelonia mydas not available
Northern Alligator Lizard Elgaria coerulea BC
Kemp's Ridley Sea Turtle Lepidochelys kempii Atlantic Ocean, NS
Red-bellied Snake Storeria occipitomaculata MB, NB, NS, ON, QC
Terrestrial Gartersnake Thamnophis elegans AB, BC
Northwestern Gartersnake Thamnophis ordinoides BC
Common Gartersnake Thamnophis sirtalis AB, BC, MB, NB, NS, NT, ON, QC, SK

Terrestrial mammals (7)

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Silver-haired Bat Lasionycteris noctivagans AB, BC, MB, NB, NS, NT, ON, QC, SK, YT
Eastern Red Bat Lasiurus borealis AB, BC, MB, NB, NS, NT, ON, QC, SK
Hoary Bat Lasiurus cinereus AB, BC, MB, NB, NS, NT, ON, QC, SK, YT
Muskox Ovibos moschatus NT, NU
Great Basin Pocket Mouse Perognathus parvus BC
Group 2 - mid priority candidates
No candidates currently listed
Group 3 - low priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Pronghorn Antelope Antilocapra americana AB, SK
Western Spotted Skunk Spilogale gracilis BC

Vascular plants (9)

An expanded vascular plants candidate list of over 500 vascular plants, grouped into two priority classes, is now available to the public in an excel worksheet file. This list is provided with the understanding that it is a working copy undergoing modification. In preparing the list, information from the General Status of Species in Canada review process, undertaken by all federal, provincial and territorial jurisdictions, is taken into account when species are ranked for inclusion on the list. Please contact the COSEWIC secretariat for a copy of the list at ec.cosepac-cosewic.ec@canada.ca.

Group 1 - high priority candidates
Common name Scientific name Canadian range / known or potential jurisdictions
Alpine Lady's-mantle Alchemilla alpina NL, QC
Smooth Clustered Sedge Carex aggregata ON
Black-edged Sedge Carex nigromarginata ON
Meadow Thistle Cirsium scariosum BC, QC
Pumpkin Ash Fraxinus profunda ON
Maleberry Lyonia ligustrina NS
California Swordfern Polystichum californicum BC
Dune Goldenrod Solidago simplex NB, ON
Dwarf Western Trillium Trilium ovatum BC

Group 2 - mid priority candidates and group 3 - low priority candidates

An expanded vascular plants candidate list of over 500 vascular plants, grouped into two priority classes, is now available to the public in an excel worksheet file. This list is provided with the understanding that it is a working copy undergoing modification. In preparing the list, information from the General Status of Species in Canada review process, undertaken by all federal, provincial and territorial jurisdictions, is taken into account when species are ranked for inclusion on the list. Please contact the COSEWIC secretariat for a copy of the list at ec.cosepac-cosewic.ec@canada.ca.

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