Rock Crab aka Brown Rock Crab and Pacific Rock Crab | 水產百科網

2018年11月29日—Identification:Rockcrabshaveawide,hardshellwithblack-tippedpincersonclawsthatarelargeandsmooth.Distinctivearetheantennaethat ...

Subphylum Crustacea (Crustaceans) — Order Decapoda (Crabs, Lobster, Shrimp) — Family Cancridae (Cancer Crabs) — Genus Cancer

Species: Cancer antennarium (Stimpson, 1856). (Alternate proposed scientific name Romaleon antennarium).  Antennarium — Latin for “antennae” in reference to the large antennae, larger than those of other species in the family.

Alternate Name: Pacific rock crab, California rock crab, brown rock crab or just plain rock crab.

Identification: Rock crabs have a wide, hard shell with black-tipped pincers on claws that are large and smooth. Distinctive are the antennae that begin between the eyestalks and are the longest of these various species. The tip of the last segment of the tail flap is pointed in both male and female. The coloring is generally medium to dark red-brown or orange, usually mottled with a lighter grayi...