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Species

Blue Crab

Crustaceans

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Blue Crab
Facts
Identification
Distinguishing Appearance
A wide, flattened, bluish-green shell with a pair of large pincer claws, vividly blue in males, and a pair of flattened paddle-like rear swimming legs. 1
Cross-Tradition Connections

In Biome

Salt Marsh, Biomes
Source Encyclopaedia Britannica
Sources
1. Callinectes sapidus, blue crab (Wikipedia)
Description section
Quote, Description section
The crab's blue hue stems from a number of pigments in the shell, including alpha-crustacyanin, which interacts with a red pigment, astaxanthin, to form a greenish-blue coloration.
Encyclopaedia Britannica
Encyclopaedia Britannica, Inc.In Biome: Salt MarshView the Source
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