Canadian Crayfish

   
From web-master Dave

Well here's a contribution and thank-you to Doug Collicut of Canada. This photograph is from the Canadian website Nature North zine. The quality of the photographs on this site is truly amazing. Apparently there are only two endemic crayfish in Doug's area and eleven species overall in Canada, come on where's the other local one Doug. Another thank-you goes to Rodger Hurtubise who put me on to Doug's website.
Text by Doug Collicut



Northern Crayfish


Our own Northern Crayfish (Orconectes virilis) is one of about 500 species worldwide, are crustaceans related to copepods, barnacles, crabs, shrimps, lobsters, etc. (Class: Crustacea, Order: Decapoda, Family: Cambaridae, Genus: Orconectes, Species: virilis) The Northern Crayfish grows to a length of about 10-12 cm, not including the 2 pairs of long antennae or the large chelipeds, the large claw or pincer bearing legs, that extend forward. The chelipeds often have a bluish tint, particularly in the males which have larger chelipeds and larger pincers than females.

   

More Orconectus here