DECAPOD CRUSTACEANS OF THE WEST INDIES 211 



populations are large, and at the mouth of the Layou and along the 

 Salisbury Rivers they are comparatively rare. 



Distribution. — West Indies (Bimini Is., Rum Cay, Cuba, Jamaica, 

 Hispaniola, Puerto Rico, Saint Thomas, Saint Croix, AnguiUa, Saint 

 Martin, Barbuda, Nevis, Antigua I., Guadeloupe, Dominica, Bar- 

 bados, Tobago, Islas de Aves, Bonaire, Curagao, Aruba, Swan Is.). 



Dominica Stations: 6, 36-38, 112 (0-5 ft.). 



Remarks. — Dominican specimens of U. burgersi have a slightly 

 different appearance from paratypes of the species from Curagao, 

 with which they have been compared, because the orbits of the former 

 slope posterolaterally more strongly than they do in the latter. 

 The male pleopods, however, seem to be practically identical in the 

 two popidations. 



All of the specimens, including the three ovigerous females, were 

 collected in February and March. 



A third species of Uca may occur on Dominica at station 112. 

 A single male with an unusual (perhaps regenerated) major chela 

 and with pleopods that differ from those of all other American species 

 was found among the specimens of U. burgersi and U. vocator collected 

 there m 1966. In this specimen, the orbits are intermediate in slope 

 between those of the other two species. 



85. Uca cumulanta Crane 



Figures 71e, / 



Uca cumulanta Crane, 1943, p. 42, text-figs. 1g-i, pi. 1: figs. 3, 4 [type-locality: 



Pedernales, Venezuela]. 

 Uca (Minuca) cumulanta. — Holthuis, 1959, p. 274, text-fig. 68a, pi. 14: fig. 3; 



pi. 15: fig. 4. 



Diagnosis. — Carapace roughly trapezoidal, about two-thu'ds as 

 long as wide, strongly convex but not semicylindrical longitudinally, 

 surface smooth and polished, without pubescence; fronto-orbital 

 distance representing maximum carapace width; front widening 

 toward base, not subspatulate, width between posterodistal angles of 

 basal segments of eyestalks, with eyes retracted, slightly less than 

 one- third of fronto-orbital distance; lateral marginal ridges usually 

 forming rather distinct obtuse angles and converging strongly poste- 

 riorly. Cornea moderately swoUen, occupying about one-third of 

 extensor surface of distal segment of eyestalk. Chelipeds greatly dis- 

 similar and unequal in males, smaU and subequal in females; fingers 

 of major chela of male distinctly longer than palm, slender, widely 

 gaping, not unusually compressed. Walking legs almost completely 

 devoid of pubescence. Hair-fringed ventral opening present between 

 coxae of third and fourth pereiopods. Denuded first pleopod of male 

 terminating, in posterior view, in obliquely truncate tip with very 



