THE GEAPSOID CBABS OF AMERICA. 



197 



Variations. Largo male (24515) 

 more hairy than other specimens. 

 Middle supraorbital lobe varying 

 from subtruncate in large specimens 

 through obtuse subtriangular in me- 

 dium specimens to acute subtriangular 

 in the smallest specimen. "While the 

 outer margin of outer orbital lobe is 

 always convex, it may sometimes be 

 partially straight or even a little con- 

 cave. The tooth on merus of legs 2 

 and 3, although usually obtuse, is 

 acute on right side only of a single 

 specimen. The anterior distal lobe of 

 carpus of the same leg varies in 

 acuteness. 



Color. From a newly preserved 

 specimen. Ambulatory legs banded 

 with reddish orange-brown on a yel- 

 lowish ground; third leg faintly 

 banded, mostly yellowish. Carapace 

 dull light brown mottled with orange 

 brown. Chelipeds same uniform color 

 as leg bands. 



Measurements. Male (24515), 

 greatest length of carapace 12.7, width 

 of same 14.8, length of second leg 24.4 

 mm.; female (49142), greatest length 

 of carapace 9.9, width of same 11 mm. 



Range. Charlotte Harbor to Mi- 

 ami, Florida; St. Thomas; St. Croix; 

 Barbados. 20-117 fathoms. 



Material examined. See table. 



Remarks. I think that the type of 

 agassizi is a young specimen of affinis; 

 compare, for example, Edwards and 

 Bouvier's plate 8, figure 10, with the 

 same leg on figure 1; in their plate 7, 

 figure C, the projection at inner angle 

 of orbit appears exaggerated, while in 

 plate 8, figure G, the edge of the 

 pterj'gostomian lobe is truncated be- 

 cause bent down away from the hori- 

 zontal. 



