THE CANCROID CRABS OF AMERICA 361 



lation may cover the outer surface; major palm as high as its superior 

 length; minor palm half as high as major; fingers light colored or 

 brown, the color of immovable finger continued a little on palm. A 

 large tooth at base of major dactyl; immovable finger horizontal. 

 Immovable finger of minor dactyl deflexed, both fingers slender. 



Third segment of male abdomen narrow, its lateral extremities 

 rounded, not angled. Abdomen constricted between fifth and sixth 

 segments, the sixth broader than long; terminal segment subtriangu- 

 lar, tip rounded. 



Color. — Fore part of carapace a sort of cinnamon rufous with a 

 few darker bay markings, hinder part shading into ecru drab; legs 

 a raw umber; chelae much lighter, more a pearl gray; fingers with a 

 fawn spot at base, tips white, under parts more or less porcelain 

 white (Schmitt). 



Measurements. — Male type, length of carapace 10.3, width of same 

 14.4, fronto-orbital width 9.3, width of front 4.6 mm. American 

 specimens run smaller; a male from Brazil (59482) measures length 

 of carapace 6.9, width of same 9.6, fronto-orbital width 6.5, width of 

 front 3.2 mm. 



Variation. — The carapace in young and middle-sized 'specimens 

 and females is rather oval in shape, but in old males is more hexagonal 

 as the front becomes more produced and the dorsum somewhat more 

 depressed; on the whole, approaching a Hexapanopeus form. As a 

 rule American specimens have shallower lateral sinuses than the 

 Bermuda types. We have too few specimens from Bermuda to 

 determine how constant that character is for the locality. 



Range. — From west coast of Florida and Bahamas to State of 

 Santa Catharina, Brazil. Bermuda. West coast of America from 

 Mexico to Peru. 



Material examined. — 



FLORIDA.— Goodland Point; H. Hemphill; 18 specimens (15665). 



Tampa Bay; QVi-Qji fathoms; stations 7109, 7121, Fish Hawk; 

 2 young (59841). 



Sarasota Bay; Union College Collection; 18 specimens (42810^ 

 59488, 59489, 59490). February, 1884; H. Hemphill; 1 ovigerous 

 female (15666). 



Charlotte Harbor; Union College Collection; 2 specimens (42809, 

 59840). 



Marco; H. Hemphill; 20 + specimens (15636, 15667). 



Garden Key, Tortugas; 1 male (3217). 



BAHAMAS. — Nassau; December 25, 1898; Fish Hawk; 1 male 

 (24328). 



CUBA. — 1914; Henderson and Bartsch, Tomas Barrera Expedi- 

 tion: Ensenada de Santa Rosa, Station 7, May 19, 1 male (48546); 

 Los Arroyas, station 8, May 20, 1 ovigerous female (48547). 



