552 PROCEEDINGS OF THE NATIONAL \llsi:t][. vol.38. 



on the outer surface; fingers not gaping; dactylus partly tuberculate 



above. Legs compressed, unarmed, dactyli furry above and below. 

 Width 70 to 85 mm. 



Dredged near northeast side of San Lorenzo Island, depth 2\ fathoms, February 5. 

 Callao, October 29, 1907. 



Distribution. — Ecuador; Peru; Chile. 



HEPATELLA AMICA Smith. 



Plate 50, fig. 5. 

 Hepatella arnica Smith, in Verrill, Amer. Nat., vol. 3, 1870, p. 250. 



Carapace subrectangular, little broader than long, antero-lateral 

 margins arched and crenulate, postero-lateral margins deeply exca- 

 vate and meeting the posterior margin at an angle; antero-lateral 

 regions depressed; gastric, cardiac and post-branchial regions 

 elevated and granulate; front produced, subtruncate. The concave 

 area below the orbit is very shallow and ill defined. Maxillipeds 

 notched at tip. Chelipeds moderate; wrist and chela cristate above; 

 upper crest of hand tridentate, lower edge crenate, four ridges on 

 outer surface. Legs cristate above and below. 



Width Hi to 20 mm. 



Taken in trawl, Bay of Sechura, wesl of Matacaballa, deptb about 5 fathoms, April 

 8, 1907. 



Not previously known from Peru. 

 Distribution. — Panama ; Peru. 



LEUCOSILIA JURINEI (Saussure). 



Plate 45, fig. 1. 



Guain (ilia) jurinei Sai ssi re, Rev. et Mag. de ZooL, no. 8, 1853, p. 12, pi. 13, 

 fig. 4. 



Leucnsiliii juriiiii Bell, Trans. I. inn. Soc. London, vol. 21, 1855, p. 295, pi. 32, 

 fig. I. 



Carapace orbicular, very convex, surface closely covered with 



granulations; hepatic region bearing a low elevation, margin sepa- 

 rately convex; a tooth or tubercle on the intestinal region; front 

 with two small triangular, divergent teeth. Orbits small, three 

 closed fissures on its margin. Buccal cavity as advanced as the front . 

 subtriangular. Chelipeds and legs granulate; arm joints cylindrical; 

 palms a little compressed, narrowing distally; lingers long and 

 slender, slightly gaping in male; dactyli of legs setose, slightly 

 curved. 



I iengl li II to '_'! nun. 



( tyster beds of Matapalo i Dear I apon I, January 23, 1908. 



Not previously known from Peru. 



Distribution. From Mazatlan, Mexico, to Peru; Galapagos Islands. 



