A close-up of the rostrum, enlarged from above. A small tunicate is growing on the base. Photo by Dave Cowles, July 1999 We capture this crab mainly during deep benthic trawls in the San Juan channel
Snow Crab - Chionoecetes Opilio Photographed on site at The Field Museum, Chigaco, for the Encyclopedia of Life project. Thanks to Alta Buden for making it all happen and to Jochen Cerber for allowing access to the crustacea specimensPhotosynthImages collection
Note large spine behind the eye on this close-up. Another view of Oregonia gracilis rostrum. Note the postorbital spines. Photo by Dave Cowles, July 2000
Here is the underside of another individual. Note the long, thin legs and chelipeds, and the long hydroid attached to the rostrum. Photo by Dave Cowles, July 2005