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COSEWIC Status Reports

  • COSEWIC Assessment and Status Report on the Striped Bass Morone saxatilis in Canada (2013)
    The Striped Bass (Morone saxatilis) is a large-bodied fish (1 m or more) with an olive green back, fading on the sides to silvery and becoming white on the belly. There are seven or eight horizontal dark stripes along each side. It has an elongate, laterally-compressed body, a triangular head, and a large mouth with a protruding lower jaw. It has two separated dorsal fins, the first of which is spiny and its caudal fin
  • COSEWIC Assessment and Status Report on the American Badger Taxidea taxus in Canada (2013)
    The American Badger (Taxidea taxus) is a medium-sized fossorial (burrowing) carnivore in the weasel (Mustelidae) family. They are well-adapted to digging, possessing a dorso-ventrally flattened body with a robust pectoral girdle and broad front paws used to excavate burrows and dig out prey. Four subspecies of American Badger are recognized, three of which occur in Canada. Mitochondrial DNA work found mul
  • COSEWIC Assessment and Status Report on the White Sturgeon Acipenser transmontanus in Canada (2013)
    Sturgeons are part of an ancient lineage of ray-finned fishes. Most of their internal skeleton (including the skull) is composed of cartilage; however, there are superficial bones on the surface of the head and several distinct rows of diamond-shaped bony projections (scutes) on the body. Sturgeons have conspicuous barbels on their snouts. Two species occur along the Pacific Coast of Canada: the Green Sturgeon, Acipenser medirostris, and the Whit ...
  • COSEWIC assessment and update status report on the white sturgeon Acipenser transmontanus in Canada (2013)
    Sturgeons are part of an ancient lineage of ray-finned fishes. Most of their internal skeleton (including the skull) is composed of cartilage; however, there are superficial bones on the surface of the head and several distinct rows of diamond-shaped bony projections (scutes) on the body. Sturgeons have conspicuous barbels on their snouts. Two species occur along the Pacific Coast of Canada: the Green Sturgeon, Acipenser medirostris, and the Whit ...
  • COSEWIC Assessment and Status Report on the Cusk Brosme brosme in Canada (2013)
    The Cusk is the only member of its genus and is one of about 20 species of cod-like (Gadiforme) fishes on the east coast of Canada. The combination of a single barbel and a single dorsal fin is diagnostic and identifies this species.
  • COSEWIC Assessment and Status Report on the Eastern Musk Turtle Sternotherus odoratus in Canada (2013)
    The Eastern Musk Turtle, Sternotherus odoratus, is a small freshwater turtle with a narrow, domed carapace, and a large head with a pointed snout. Two yellow/white stripes extend from the nose, above and below the eyes, and along the sides of the head and neck. These stripes are not always apparent on older individuals. The plastron is small and cross-shaped. There are two or more pointed barbels present on the chin and throat. Individuals may st ...
  • COSEWIC Assessment and Status Report on the Fernald's Braya Braya fernaldii in Canada (2013)
    Fernald's Braya (Braya fernaldii) is a small (10 centimeters tall) herbaceous perennial in the mustard family Brassicaceae. It has fleshy, dark green to purplish, linear spatulate (spoon-shaped) leaves arranged in rosettes and four-petalled white to pinkish or purplish flowers. Fernald’s Braya is very similar morphologically to Long’s Braya (listed as Endangered under the Species at Risk Act) but it is shorter and has narrower petals, smaller and ...
  • COSEWIC Assessment and Status Report on the Greenish-white Grasshopper Hypochlora alba in Canada (2013)
    Hypochlora alba is usually referred to as the Greenish-white Grasshopper in Canada. In the United States its common name is the Sagebrush Grasshopper, Cudweed Sagewort Grasshopper, or Cudweed Grasshopper, because it is found in close proximity to its principal foodplant, White Sagebrush. It is a small, flightless grasshopper, with late instars and adult males typically 1.1 to 1.5 centimeters in length and adult females up to 2.0 centimeters. The ...
  • Addendum to the COSEWIC status report on the Lake Winnipeg Physa Physa sp. in Canada (2013)
    The shell of Physa sp. is thin, inflated, generally less than 11 millimetres long, with a depressed spire and dull surface. The shell width:length ratio exceeds 0.70, and the aperture:shell length ratio is greater than 0.80. The animal is light grey in color, with long tentacles.
  • COSEWIC assessment and status report on the Lake Winnipeg Physa Physa sp. in Canada (2013)
    The shell of Physa sp. is thin, inflated, generally less than 11 millimetres long, with a depressed spire and dull surface. The shell width:length ratio exceeds 0.70, and the aperture:shell length ratio is greater than 0.80. The animal is light grey in color, with long tentacles.
  • COSEWIC Assessment and Status Report on the Northern Map Turtle Graptemys geographica in Canada (2013)
    The Northern Map Turtle (Graptemys geographica) is highly aquatic. The carapace is olive to brown with a reticulate pattern of light yellow lines that fade as the turtle matures. When first described, the markings on its carapace were thought to resemble a contour map, which gave rise to the turtle’s common and scientific names. Adults show extreme sexual size dimorphism with females being much larger than males. There are no recognized subspecie ...
  • COSEWIC Assessment and Status Report on the Pink Coreopsis Coreopsis rosea in Canada (2013)
    Pink Coreopsis is a slender, perennial, herbaceous member of the Aster family, arising from a rhizomatous root system. It is 20-60 cm tall, with simple or branched stems bearing opposite linear leaves. Flowers are aggregated into daisy-like heads containing both yellow, tubular disk florets and pink to white, petal-like ray florets.
  • COSEWIC Assessment and Status Report on the Eastern Wood-pewee Contopus virens in Canada (2013)
    The Eastern Wood-pewee is a small forest bird about the same size as a House Sparrow. Both sexes have similar plumage, being generally greyish-olive on the upperparts and pale on the underparts. This species is often observed perched in an upright position typical of flycatchers. It is distinguished from its ‘confusing’ Empidonax flycatcher cousins by its larger size, lack of an eye-ring, and longer and more pointed wings. During the breeding sea ...
  • COSEWIC Assessment and Status Report on the Western Toad Anaxyrus boreas Non-calling population, Calling population in Canada (2013)
    The Western Toad is a large toad with small round or oval “warts” on the back, sides and upper portions of the limbs. Large oblong parotoid or poison cheek glands are situated behind the eyes. Colour is typically brown or green but varies from olive green to almost reddish-brown or black; a creamy or white vertebral stripe often extends along the back. The “warts” and parotoid glands are often reddish-brown. There is a grey pelvic patch in the gr ...
  • COSEWIC Assessment and Status Report on the Greenish-white Grasshopper Hypochlora alba in Canada (2013)
    Hypochlora alba is usually referred to as the Greenish-white Grasshopper in Canada. In the United States its common name is the Sagebrush Grasshopper, Cudweed Sagewort Grasshopper, or Cudweed Grasshopper, because it is found in close proximity to its principal foodplant, White Sagebrush. It is a small, flightless grasshopper, with late instars and adult males typically 1.1 to 1.5 centimeters in length and adult females up to 2.0 centimeters. The ...

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