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Geographic range is Alaska to Mexico Size: up to 45mm (1.7 inches) Domain Eukarya This is a reasonably common crab especially around the dock and higher subtidal areas. The adult males have large claws that they seem to keep folded in. The nose is flat and pointed. The crab shells are often covered with barnacles and other growth as can be seen in this picture. This species puts relatively little effort into decorating, occasionaly placing a small pieces of material on its rostrum but generally appearing to just let organisms colonize its roughened carapace. It feeds primarily on detritus and sessile invertebrates, and sometimes it associates with sea anemones. Females with eggs have been found all months but April to May and September to October. Number of eggs carried ranges fom 2,700 to 16,300. References: http://www3.bc.sympatico.ca/kerryw/creature/sharp.htm Jensen G.C. 1995. Pacific Coast Crabs and Shrimps. Sea Challengers, Monterey, CA. p. 21. Kozloff, E.N. 1983. Seashore Life of the Northern Pacific Coast. University of Washington Press. Washington. 370 pages. Morris, R., P. Abbott, and E. Haderlie. 1980. Intertidal Invertebrates of California. Stanford University Press, California. 690 pages. |
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| Other Members of the Phylum Arthropoda at Race Rocks |
 Return to the Race Rocks Taxonomyand Image File |
 The Race Rocks taxonomy is a collaborative venture originally started with the Biology and Environmental Systems students of Lester Pearson College UWC. It now also has contributions added by Faculty, Staff, Volunteers and Observers on the remote control webcams.
Sumak Serrano (PC year 28) |