THE CANCROID CRABS OF AMERICA 417 



from fifth lateral tooth; a broken mesobralnchial line on the same level 

 with anterior cardiac border; just behind this border, a short trans- 

 verse cardiac line on either side; in front of base of last leg a short 

 granulate ridge. Outer end of front not advanced, neither lobiform 

 nor dentiform. Supraorbital and suborbital notches larger than in 

 depressus; inner inferior tooth lower, acute. 



Chelipeds more unequal than in depressus, the minor palm only 

 half as high as the major, while in depressus it is two-thirds as high as 

 the major. Palms coarsely granulate, the minor much more so than 

 the major, and with two or three longitudinal lines at middle of outer 

 surface; upper surface of both palms more deeply guttered than in 

 depressus. Color of propodal finger continued on palm but not 

 spreading upward. Fingers of minor chela together smaller than the 

 palm, their distal half spooned, extremities narrower than in depressus, 

 ridges rough with granulation. 



Third segment of male abdomen not fused with the fourth, its 

 lateral extremities less pointed than in depressus; sixth segment 

 shorter and broader than in that species. 



Measurements. — Of smaller size than depressus. Male paratype 

 (15640), length of carapace 9.6, width of same 14.3, fronto-orbital 

 width 9.5, width of front 4.6 mm. 



Variation. — Occasionally a major cheliped is reduced so that the 

 manus is only half again as high as in the minor cheliped, but in 

 such cases the chela partakes of the character of the minor one in 

 shape and roughness and the spooning of the fingers. 



Range. — From the Gulf of Mexico (west coast of Florida) to Santa 

 Catharina, Brazil. 



Material examined. — 



FLORIDA.— Off Charlotte Harbor; lat. 26° 35' N.; long. 83° 11' 

 W.; temperature 66° F.; April 2, 1901; station 7122; Fish Hawk; 2 

 males (25623). 



CUBA. — Manimani River, Bahia Honda, Pinar del Rio; 1924; 

 Mario Sanchez Roig; 1 female (58666). Mariel, Pinar del Rio; May 

 10, 1900; Wilham Palmer and J. H. Riley; 1 male (23830). 



JAMAICA. — Montego Bay and Port Henderson; P. W. Jarvis; 

 "numerous"; specimens returned to sender. Kingston Harbor: 

 1893, R. P. Bigelow, 25 specimens (17971); May-July, 1896, F. S. 

 Conant, 2 young (19595). 



NICARAGUA. — Salt water lagoon near Greytown; in crevices in 

 logs; Charles W. Richmond; 2 males, 2 females (18011). 



TRINIDAD.— January 30-February 2, 1884; Albatross; 13 males 

 (including holotype), 18 females, 17 young (15640), Mono Island; 

 Albatross; 2 males, 7 females, 6 young (18522). 

 79856—30 28 



