Rhinolithodes wosnessenskii Brandt (1849)
Common name(s): Rhinoceros crab
|Rhinolithodes wosnessenskii approx 7 cm across carapace, captured by SCUBA off Sares Head August 2004 See below for more photos.|
|Photo by: Dave Cowles August 2004|
How to Distinguish from Similar Species: The only other local Lithodid crab with a triangular carapace is Phyllolithodes papillosus (the heart crab). It differs from that species in that P. papillosus has fewer, stiff blunt spines on the legs and few hairlike setae on the legs, has a rostrum of two blunt lobes, and the dorsal concavity of the rostrum is more strongly divided into a left and a right depression bordered by large tubercles.
Geographical Range: Kodiak, Alaska to Crescent City, CA
Depth Range: 6-73 m
Habitat: Rock or gravel bottoms, often hiding in crevices.
Biology/Natural History: Not often found in most areas of Puget Sound/Straits (though this species is often found on Sares Head). Slow-moving. Interestingly, even the back of the eyestalks have small spines (picture)
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