THE GRAPSOID CRABS OF AMERICA. 



277 



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

 Smith.) 



Distribution.— Acnpulco, 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, 1S92, p. 77 (type-locality, Kingston Harbor; type. Cat. No. 

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



Glyptograpsus 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. 



FlO. 140. GLYPTOGnAPSUS JAMAICENSIS, MALE. a, ABDOMEN, HOLOTTPE, X IJ ; 



b, PIllST RIGHT ABDOMINAL AITEXDAGE (42881), INNEU SIDE, X 2S ; C, OCTEU 

 MAXILLII'ED OB" HOLQTYl'E, X M ', d, TOP VIEW OF lUGHT CHELA OF SAME, 

 SLIGHTLY ENLARGED ; Ci OUTER VIEW OV SAME, SLIGHTLY ENLARGED. 



Description. — Closely allied to G. ivijiressus. 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 braiichial region is not well marked. Each 

 of the two lobes of the front i^l 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 latera\ tooth is 

 much shorter than the first, obtuse-angled, and is tlie 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, 



