536 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



posterior third nearly smooth; antero-lateral margin with five or six 

 irregular teeth. Front most produced at middle. Outer orbital 

 sinus narrow, between two flat sharp-edged teeth. Chelipeds 

 tuberculate, tubercles arranged in rows on lower half of palm, the 

 next to the lowest row terminating in a large tooth or tubercle on the 

 outside of the immovable finger; upper edge of palm trilobate or 

 tridentate; fingers brown with white tips, gaping slightly in basal 

 half. Legs slender, terminal half or third furry. 



Color. — Larger specimens, dark bistre with a whitish area either 

 side of posterior portion. Smaller ones almost black; clove brown 

 carapace and legs; chelipeds except fingers a sort of lavender gray; 

 fingers olive or bistre. (Schmitt.) 



Measurements. — Male, Valparaiso, length of carapace 18, width of 

 same 23.3 mm. Female, ovigerous, Valparaiso, length of carapace 

 10.2, width of same 13 mm. 



Range. — Panama (Cano) to Chile. Accidental at Queenstown, 

 Ireland, and Plymouth, England (Caiman). 



Material examined. — 



PERU.— Paita; October 7 and 8, 1926; 1 male, 3 young (60929, 

 60932). 



Bay of Sechura, west of Matacaballa; about 5 fathoms, in trawl; 

 April 8, 1907; R. E. Coker, collector, for the Peruvian Government; 

 specimens returned. 



Salavery; 1926; W. L. Schmitt: October 19; 1 male, 1 female, 10 

 young (60927). October 21; 11 males, 9 females (1 ovigerous), 12 

 young (60816). October 23 and 24 ; 18 males, 37 females (7 ovigerous) 

 9 young (60815). 



Near northeast side of San Lorenzo Island; 2.5 fathoms, dredged; 

 same collector; 1 male, 2 females (40423). 



San Lorenzo Island; 1926; W. L. Schmitt: November 1; 1 female 

 (60928); November 3; 6 males, 1 female, 5 young (60819). Novem- 

 ber 7; 1 young female (60818). Dredged; 4 young (60930). 



Callao; specimens in Copenhagen Museum. 



CHILE.— Antofagasta: November 6, 1914; J. N. Rose; 2 females 

 (49058), received from the Carnegie Institution. November 15, 1926 ; 

 W. L. Schmitt; 3 females (1 ovigerous), 6 young (60817). 



Valparaiso Bay; C. E. Porter; 1 male, 1 female, returned to Mus. 

 Hist. Nat. Valparaiso; 1 female (32263). 



Valparaiso; April, 1920; Edwyn Reed; 8 males, 11 females (5 

 ovigerous); lent by Buenos Aires Museum (10806). 



Valparaiso; January 7, 1927; W. L. Schmitt; 16 young (62551). 



Talcahuano; January 15, 1927; W. L. Schmitt; 1 male, 2 females 

 (60931). 



