Warning This Web page has been archived on the Web.

Archived Content

Information identified as archived on the Web is for reference, research or recordkeeping purposes. It has not been altered or updated after the date of archiving. Web pages that are archived on the Web are not subject to the Government of Canada Web Standards, as per the Policy on Communications and Federal Identity.

COSEWIC Assessment and Update Status Report on the Dwarf Wedgemussel in Canada

The Dwarf Wedgemussel is a small (up to 55 mm long) freshwater mussel that is roughly trapezoidal in shape. The periostracum is brown or yellowish brown with greenish rays in young or pale-coloured specimens. The nacre is bluish or silvery white and is iridescent in the posterior part of the shell. The hinge teeth are small but distinct. The pseudocardinal teeth are compressed, one or two in the right valve and two in the left. The lateral teeth are gently curved, and there are two teeth in the right valve and one in the left, which is the reverse of the pattern found in other species.

Available Formats:

PDF, 285 KB

Environment Canada produces a wide variety of publications in various print and electronic formats. Some formats may not be accessible to screen readers. Alternate accessible formats are available upon request. Please contact enviroinfo@ec.gc.ca

  • Author: Government of Canada, Environment Canada
  • Language of Document: Separate English/French
  • Document Type: Report
  • Pages: 24
  • Year: 2000