THE CANCROID CRABS OF AMERICA 555 



studded with acute spines above. Legs stout, of moderate length; 

 upper surface of last four articles fringed with hairs, upper edge of 

 merus spinate, as also, but much less distinctly, is the upper edge of 

 carpus and propodus. 



Color. — Light yellowish red, front darker; spines blackish. (Ver- 

 rill.) 



Measurements. — Male (24315), total length of carapace 7, total 

 width of same 9.5, fronto-orbital width 7.6, width of front between 

 antennae 3.8 mm. 



Habitat. — Among sponges and branches of corals and in holes of 

 •dead corals and stones. 



Range. — From off South Carolina to Brazil; eastern Atlantic, 

 Indian, and Pacific Oceans to American coast: Gulf of California to 

 Panama (Verrill). 



American material examined. — 



SOUTH CAROLINA.— Open ocean off Gulf Stream; lat. 32° + N., 

 long. 74° + W.; June 12, 1903; B. A. Bean; 1 female (31057); gift of 

 Geographic Society of Baltimore. 



BAHAMAS. — From sponges; Frederick Stearns; specimens re- 

 turned to sender. J. I. Northrop; specimens returned to sender. 



FLORIDA.— Rodriguez Creek; 1884; Edward Palmer; 6 males, 7 

 females (13569). 



Key West; A. S. Packard, Jr.; 2 males, 1 female, cotypes of Pilum- 

 nus melanacanthus (4811, M. C. Z.). 



Key West; among corals and algae, low tide; H. Hemphill; 1 male 

 (14453). 



Dry Tortugas; 1884; Edward Palmer; 2 males, 2 females (18044). 



Sand Key Light; among sponges and rocks; 1893; Biological Expe- 

 dition, State University of Iowa; 5 females (Mus. S.U.I.) . 



WEST INDIES.— Cuba: On reef flat between Cayo Hutia and 

 Little Cayo, NE. of Light; May 12, 1916; Tomas Barrera Expedition; 



I male, soft shell (48516); from Henderson and Bartsch. 

 Jamaica: P. W. Jarvis; specimens returned to sender. Kingston 



Harbor; 1884; Albatross; 1 male, 4 females (18043). 



St. Thomas; shore; January 17-24, 1884; Albatross; 5 males, 4 

 females (18042). 



Porto Rico; 1899; Fish Hawk: Mayaguez; on corals; January 21; 



II females, 2 young (24311). Mayaguez; on coral reef; January 23; 

 5 males, 11 females, 2 young (24312). Porto Real; January 27; 1 

 female (24313). Playa de Ponce reef; February 1; 1 male (24314). 

 Off Humacao; Humacao N. % W. 5% miles; 10 fathoms; Co.; tempera- 

 ture 26° C; February 14; station 6097; 1 male (24317). 



Culebra Island: Ensenada Honda; February 9 and 11, 1899; Fish 

 Hawk; 4 males, 1 female (24315). 



