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CRABS (BRACHYURA) OF THE GULF OF MEXICO

CRABS (BRACHYURA) OF THE GULF OF MEXICO

CRABS (BRACHYURA) OF THE GULF OF MEXICO

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Crabs of the Gulf of Mexico 133<br />

Caribbean coast of Colombia; Ceara to Pernambuco, Brazil; eastern Atlantic,<br />

from Senegal to Zaire.<br />

Habitat: burrows in marshy marine areas; among rocky and stony areas of<br />

the intertidal zone and up to the high tide line.<br />

Remarks: Felder (1973a) provided the only other specific Gulf record in addition<br />

to the previous record for the Florida Keys. HartnoU (1965b) commented<br />

on the ecology of this crab in Jamaica. Listed from Brazil by Coelho and Ramos<br />

(1972) and Fausto Filho (1974).<br />

Sesarjna Say, 1817<br />

Subgenus Holomelopus H. Milne Edwards, 1853<br />

Sesarma (Holomelopus) americanum Saussure, 1858 (Mem. Soc. Hist. Nat.<br />

Geneve 14: 441)<br />

As 5. tampicense—Bathbun, 1918, p. 307, text-fig. 151, pi. 88,<br />

AsS. americanum—Chace & Hobbs, 1969, p. 178, figs. 62a-f.<br />

Range: Tampico, Me.xico; St. Thomas, Virgin Islands.<br />

Habitat: soft mud, along river banks.<br />

Remarks: Chace and Hobbs (1969) determined that S. tampicense Rathbun<br />

was a junior synonym of 5. americanum Saussure. Behre (1950) tentatively<br />

listed the species from Louisiana (as S. tampicense), but noted that Chace had<br />

examined the specimens and preferred not to record the species as indicated.<br />

Abele (1972b) mentions the similarities betv\'een several of the western Atlantic<br />

members of the genus; he notes the distinct differences between S. angustipes<br />

Dana and S. americanum.<br />

Sesarma (Holomelopus) anguslipes Dana, 1852.<br />

This species was restricted by Abele (1972b) to the specimens from Brazil<br />

and Trinidad; refer to his paper for a discussion of synonymy. Material listed<br />

under this name by Rathbun (1918, p. 331) was synonymized with S. roberti<br />

by Chace and Hobbs (1969, p. 184).<br />

Sesarma (Holomelopus) benedicli Rathbun, 1897 (Proc. Biol. Soc. Washington<br />

11: 90)<br />

Bathbun, 1918, p. 316, pi. 93; Holthuis, 1959, p. 248, fig. 62; Abele, 1973, p. 379,<br />

figs. lA, IG.<br />

Range: Key West, Florida; Guyana and Surinam; Bra2;il.<br />

Habitat; under wood and stones on banks of brackish and almost freshwater<br />

streams.<br />

Remarks: The female specimen from Key West (MCZ 6236) listed by Rathbun<br />

(1918) is the only Gulf of Mexico record; all others are from South America.<br />

Ecological notes were provided by Holthuis (1959).<br />

Sesarma (Holomelopus) cinereum-(Bosc, 1802) (Hist. Nat. Crust, vol. 1,<br />

an X, p. 204)<br />

Common Names: Square-backed Fiddler; Wharf Crab; Wood Crab; Friendly<br />

Crab

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