DECAPOD CRUSTACEANS OF THE WEST INDIES 



189 



distal tooth on extensor margin; dactyl about as long as extensor 

 margin of propodus. Denuded first pleopod of male terminating in 

 posterior view in elongate subrectangular or trapezoidal endpiece 

 directed distolateraUy (fig. 62p). A rather small species, maximum 

 carapace length in midline about 15 mm. 



Habitat. — Among mangroves and on muddy banks of rivers and 

 ditches. 



Distribution. — Southern Florida to Estado da Bahia, BrazU 

 (Cuba, Jamaica, Puerto Rico, Cm^agao). 



Figure 61. — Sesarma (Sesarma) curacaoense, male (carapace length 10.4 mm) from Bogue 



Islands, Jamaica (C. B. Wilson), 



76. Sesarma (Sesarma) jarvisi Rathbun 



Figure 62? 



Sesarma (Sesarma) jarvisi Rathbun, 1914, p. 124, pi. 7 [type-locality: Mount 



Diablo, Parish of Saint Ann, Jamaica]; 1918, p. 296, pi. 81. 

 Sesarma jarvisi. — Hartnoll, 1964, p. 164. 



Diagnosis. — Carapace subquadrate, about nine-tenths as long in 

 midline as wide, slightly convex longitudinally, sloping ventrally on 

 branchial regions, depressed on hepatic regions, irregularly striate 

 laterally, punctate elsewhere with very small tuberclelike patches of 

 minute setae; lateral margins slightly sinuous, subparallel, converg- 

 ing shghtly anterior to blunt tooth posterior to outer orbital angle, 

 fronto-orbital distance less than maximum mdth of carapace, slightly 

 greater than length in midline; front abruptly deflexed at postfrontal 

 lobes, about two-fifths as wide as carapace, margin with pronounced 

 median sinus in dorsal view. Eyes well developed, cornea about as 

 wide as eyestalk. True ventral margin of orbit largely replaced by 



