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BULLETIN 129, UNITED STATES NATIONAL MUSEUM 



the segment and another at angle of buccal cavity; two movable 

 segments of antennal peduncle flattened, the first one widening at its 

 distal extremity. 



Chelipeds naked and smooth, attaining a length of twice that of 

 the carapace in the male; merus cylindrical; manus compressed and 

 slightly dilated, the palmar portion about twice length of fingers; 

 fingers gaping slightly for their distal half or third. Legs stout, 

 pubescent, and hairy, the first pair attaining a length greater than 

 that of carapace; remaining pairs much shorter and decreasing regu- 

 larly in length. 



Measurements. — Male, Bermuda (Amer. Mus. 5527), total length 

 of carapace to tip of horns 63.7 mm., length on median line 46.6, 



length of horn 16.8, width of carapace 

 32.3, length of chelipcd about 90.4, of 

 first ambulatory 76.8 mm. 



Range. — Florida Keys to Bahia, Brazil; 

 to a depth of 16 fathoms. Cuba (von 

 Martens). Also Bermuda. 

 Material examined. — 

 Tortugas, Florida; W. H. Longley; I 

 male (50441), "abundant." 



Key West, Florida; C. J. Maynard; 

 received from Boston Soc. Nat. Hist.; 1 

 male, 2 females (53044) . 



Sand Key Light, Florida; rocks, 

 sponges, etc.; 1893; Biol. Exped. State 

 Univ. Iowa; 1 young female (Mus. S. 

 U. L). 



Hawk Channel, Florida, \}/i miles S. 

 by W. of southeast end of Long Key; 

 15 feet; barry; February 18, 1903; sta- 

 tion 7463, Fish HawTc; 1 young (47067). 



Florida; J. S. Kingsley collection; received from Boston Soc. Nat. 

 Hist.; 1 male (53043). 



Yucatan, off Mujeres Island; 12 fathoms; crs. co. S. ; W. Stimp- 

 son; 1 young (1941, M. C. Z.). 



Lime Cay, Jamaica; P. W. Jarvis, collector; specimen returned to 

 sender. 



Jamaica; from Mar. Biol. Lab., Woods Hole; 1 male (47353). 

 San Domingo; 1878; W. M. Gabb; 1 male (4176). 

 San Antonio Bridge, San Juan, Porto Rico; January 12, 1899; 

 Fish Hawk; 1 young (24163). 



Caballo Blanco Reef, Vieques, Porto Rico; February 7, 1899; 

 Fish Hawk; 1 male, 1 female (24201). 



Fig. 



101.— Chorinus heros (53044), 

 maxilliped, x 6 



