The Galitz Journal for friends and family
Lined Shore Crab
|Spotted San Francisco Bay, April 2013
Pachygrapsus crassipes Randall, 1839
Lined shore crab; carapace trapezoidal with 2 antero-lateral teeth on each side; dark green-black with red or purple highlights on appendages; broken transverse lines across top of carapace, 40-45 mm across.
Abundant, but fast, cryptic & pugnacious; high to mid-intertidal zone, exposed & protected outer coast; feeds on algal films & scavenges.
Geogr. Range: central Oregon to Baja