DECAPOD CRUSTACEANS OF THE WEST INDIES 213 



87. Uca major (Herbst) 



Figures 7U, j, 72 



Cancer vocans major Herbst, 1782, p. S3, pi. 1: fig. 11 [type-locality: Brazil 

 (probably erroneous from lectotype selection of Seba figure by Holthuis, 

 1962)]. 

 Ocypoda heterochelos Lamarck, 1801, p. 150 [type-locality: Brazil (see above)], 

 Uca una Leach, 1814, p. 430 [type-locality: Brazil (see above)]. 

 Gelasimus platydactylus H. Milne Edwards, 1837, p. 51 [type-locality: Cayenne, 



French Gviiana]. 

 Gelasimus grangeri Desbonne in Schramm, 1867, p. 45 [type-locality: Guadeloupe], 

 Uca heterochelos. — Rathbun, 1918, p. 381, pi. 131: figs. 1, 2. 

 Uca major.— Holthuis, 1962, pp. 240, 246. 



Diagnosis. — Carapace broadly subrectangular or trapezoidal, less 

 than three-fifths as long as wide, strongly convex but not semicylin- 

 drical longitudinally, surface smooth and polished, without pubes- 

 cence; fronto-orbital distance representing maximum carapace width; 

 front veiy narrow, subspatulate, width between posterodistal angles 

 of basal segments of eyestalks, with eyes retracted, less than one-tenth 



Figure 72. — Uca tnajor, male (carapace length 17.0 mm) from San Salvador {Albatross). 



oj fronto-orbital distance; lateral marginal ridges absent. Cornea rather 

 restricted, occupying at most one-seventh of extensor surface of distal 

 segment of eyestalk. Chelipeds greatly dissimilar and unequal in males, 

 small and subequal in females; fingers of major chela of male much 

 longer than palm, unusually broad and compressed, moderately gaping. 

 Walking legs almost completely devoid of pubescence except on 

 fifth pereiopods of female. Hair-frmged ventral opening present 



