THE GRAPS01D CKABS OF AMERICA. 349 



Legs smooth and naked above, but all the four long segments in 

 the first three pairs are thickly clothed beneath, and the carpal and 

 propodal segments of second and third pairs on the anterior side, 

 with very long coarse hair; first pair longest in the adult, last pair 

 much the shortest and slightly hairy. Dactyli of first two pairs very 

 long and slightly curved downward; of the third and fourth pairs 

 successively much shorter and curved backward as well as dowmvard ; 

 the dactyli are six-sided with sharp granulated edges, except near 

 the tips. 



The female differs from the male in its much narrower carapace, 

 stronger lateral margins, shorter chelipeds and legs, the latter being 

 sparsely hairy. 



Measurements. Male (7671), length of carapace 70, width of same 

 89, length of propodus of large cheliped 97 mm. Female (17595), 

 length of carapace 54.5, width of same 65 mm. 



Habitat. Lives not far from the sea in swampy ground where 

 brackish water stands, and especially under mangroves. 



Range. West Indies to Rio de Janeiro. 



Material examined. 



Playa de Marianao, Cuba; June 17, 1900; William Palmer and 

 J. H. Riley; 1 male (23804). 



Baracoa, E. Cuba; on tidal flat; Jan. 29, 1902; William Palmer; 1 

 female y. (25547). 



Cape Cajon, Cuba; May. 1914; Bartsch and Henderson, Tomas 

 Karrcra Exped.; 1 male (48396). 



Jamaica; Mar. 1-11, 1884; Albatross; 2 males, 1 female (7671). 



Rio Bayamon. above Palo Seco, Porto Rico; Jan. 16, 1899; Fish 

 Hawk; 3 females (24009). 



St. Thomas; A. H. Riise; 1 female (2467). 



Cristobal, Panama ; Mar. 13, 1912 ; Meek and Hildebrand, Smith- 

 sonian Biol. Survey of Panama Canal; 1 female (46688). 



Brazil; Lieut. F. E. Sawyer, U. S. Navy; 7 males, 1 female 

 (17595). 



Parahyba River, Cabedello, Brazil: in mangroves; June 20, 1899; 

 A. W. Greeley, Branner-Agassiz Exped.; 2 females (25702). 



Plataforma, Bahia, Brazil; 1876-1877; R. Rathbun, Hartt Ex- 

 plorations; 1 male. 1 female (40578). 



Rio de Janeiro, Brazil; U. S. Exploring Exped.; 1 male (2126), 1 

 male (2361). 



Terra de Masahe, Rio de Janeiro, Brazil; Jan., 1912; E. Barbe; 

 reed, from H. von Ihering, Mus. S. Paulo; 2 males, 2 females 

 (47860). 



