Stenocionops furcata coelata (A. Milne Edwards, 1878)

<strong>Stenocionops</strong> <strong>furcata</strong> <strong>coelata</strong> (A. <strong>Milne</strong> <strong>Edwards</strong>, <strong>1878</strong>)<br />

Furcate Spider Crab<br />

Infraorder Brachyura<br />

Superfamily Majoidea<br />

Family Mithracidae<br />

References used: Williams (1984), Powers (1977)<br />

Diagnostic characters: Carapace oblong-ovate with strong spines and dense covering of short setae<br />

and scattered, longer, hooked hairs; rostrum consisting of two nearly straight diverging horns with<br />

rows of hooked setae; eyes small, retractile within tubular orbits; chelipeds in adult males fairly large<br />

and noduse, distal half of fingers dark purple to black.<br />

Habitat: Found on a variety of sand and sand/shell substrates from nearshore to 110 m, rarely to 509<br />

m.<br />

Range: North Carolina through Gulf of Mexico; Yucatan Channel; West Indies to Barbados.<br />

Juvenile<br />

Eyes with<br />

complete orbits<br />

Adult<br />

Juvenile,<br />

From Williams (1984)<br />

Guide to Shelf Invertebrates, Gulf of Mexico - Perry and Larsen © 2004<br />

Draft 4/24/04

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Infraorder Brachyura<br />

Superfamily Majoidea<br />

Family Mithracidae<br />

<strong>Stenocionops</strong> spinimanus (Rathbun, 1892)<br />

Prickly Spider Crab<br />

References used: Abele and Kim (1986), Powers (1977), Felder (1973)<br />

Diagnostic characters: Carapace subpyriform, hepatic region enlarged; carapace with with 10 median<br />

spines; 2 marginal hepatic spines.<br />

Habitat: Marine waters of open Gulf from 25 to 260 fathoms.<br />

Range: North Carolina; south and southwest Florida; off Texas and east coast of Mexico; Cuba; Haiti;<br />

Guadeloupe; Dominica; Brazil.<br />

5)<br />

From Williams (1984)<br />

Guide to Shelf Invertebrates, Gulf of Mexico - Perry and Larsen © 2004<br />

Draft 4/24/04