THE GKAPSOID CRABS OF AMERICA. 



277 



length of legs, first 19, second and third 25, fourth 21 mm. (After 

 Smith.) 



Distribution. Acapulco, Mexico (M. C. Z.) ; Acajutla, Salvador 

 (Smith) ; Panama (M. C. Z. and Cano). 



Material examined. Tobago Island, Panama; May 11-15, 1911; 

 Meek and Hildebrand, Smithsonian Biological Survey of the Panama 

 Canal; 2 males, 2 females (44174). 



GLYPTOGRAPSUS JAMAICENSIS (Benedict). 

 Plate 72, fig. 3. 



Areograpsus jamaicensis BENEDICT, Johns Hopkins Univ. Circ., vol. 11, 

 No. 97, 1892, p. 77 (type-locality, Kingston Harbor; type, Cat. No. 

 17226, U.S.N.M.). 



Glyptograpsiis jamaicensis RATHBUN, Ann. Inst. Jamaica, vol. 1, 1897, p. 29. 



Diagnosis. Large. Fronto-orbital width less than two-thirds of 

 greatest width. Second and third side teeth short, not slender. Legs 

 hairy. 



Fio. 140. GLYPTOCRAFSUS JAMAICENSIS, MALE, a, ABDOMEN, HOLOTYPE, X 1J ; 



6, FIRST RIGHT ABDOMINAL APPENDAGE (42881), INNER SIDE, X 2 ; C, OCTEtt 

 UAX1LL1PED OF HOLOTYPE, X S ; d, TOP VIEW OF RIGHT CHELA OF SAME, 

 SLIGHTLY ENLARGED ', , OUTER VIEW OF SAME, SLIGHTLY ENLARGED. 



Description. Closely allied to G. impressus. Larger and narrower 

 in front. The gastric region, as well as the lateral regions, is tu- 

 berculous. The longitudinal ridge which separates the flat from the 

 precipitous portion of the branchial region is not well marked. Each 

 of the two lobes of the front is bilobed. There is a break in upper 

 margin of orbit at the entering angle, but no downward continua- 

 tion of the inner part of the margin. The second lateral tooth is 

 much shorter than the first, obtuse-angled, and is the most elevated 

 of all; third tooth acute, with transverse anterior margin; last or 

 postero-lateral tooth minute. Below the outer angle of the orbit 

 there is a deep sinus which opens into a shallow gutter beneath the 

 lateral teeth. 



The arms reach a little beyond the carapace. The roughness of 

 wrist and hands is caused by tubercles, the outer face of the palm is 

 rather flat and separated by a ridge from the oblique upper face, 



