THE GBAPSOID CBABS OF AMEBICA. 177 



Material examined. 



Pacasmayo^ Peru; from C aenocentrotus gibbosus (L. Agassiz) ; 

 beach, sandy at low water, cobblestones 5 to 6 feet deep at edge of 

 high water; Oct. 7, 1884; Dr. W. H. Jones, U. S. N., U. S. S. 

 Wachusett; fragments of 1 female (48250). 



Bay of Tocopila, Chile; from Loxechinus albus (Molina) ; A. 

 Hrdlicka; I female (49237). 



San Pedro, Chiloe Island, Chile; Hassler Exped. ; 1 male (5737, 

 M.C.Z.). 



Port Otway, Patagonia; Feb. 9, 1888; Albatross; 1 male (22112). 

 From Loxechinus albus (Molina) ; Feb. 9, 1888; Albatross; 1 female 

 (49238). From Loxechinus albus (Molina) ; Feb., 1888; Albatross; 

 4 females (49235). 



Remarks. For discrepancies between the figures of Milne Edwards 

 and Lucas and those of Heller, see Smith. 1 This species, as pre- 

 viously figured, represents the ischium and merus of maxilliped 

 completely fused, but specimens examined by the writer show a faint 

 or incomplete suture line. 



The male from Chiloe shows the pits on the carapace more dis- 

 tinctly than the male from Port Otway ; there are 4 in a square at the 

 4 corners of the cardiac region ; in front of the anterior pair there is 

 another pair, each of which forms a corner of a rhomb on each gastric 

 region. 



PINNAXODES ME1NERTI Rathbnn. 



Plate 25, flgs. 1-3. 



Pinnaxodes meinerti RATHBUN, Proc. Biol. Soc. Washington, vol. 17, 1904, 

 p. 162 (type-locality, Valparaiso, Chile; holotype male in Copenhagen 

 Mus. ) . 



Diagnosis. Carapace firm in both sexes, wider than in chilensis. 

 Palms of female short and broad. Legs short and broad. Sixth seg- 

 ment of male abdomen not constricted. 



Description of male holotype. Lower surface of body, inner sur- 

 face of chelipeds and posterior margin of ambulatory legs covered 

 with a thick felt-like coat ; anterior margin of basal portion of legs 

 clothed with long hairs. Carapace obovate, a little broader than 

 long, thin but firm, and almost smooth. Fronto-orbital width about 

 two-fifths width of carapace; front deflexed, its margin scarcely 

 visible in dorsal view, and most produced at middle ; orbits as wide 

 as front, eyes showing from above. Merus and ischium of maxilliped 

 fused, although the line of division is faintly indicated. 



Chelipeds very stout ; dactylus as long as upper margin of palm ; 

 lower margin of propodus concave at middle ; fingers meeting when 



1 Trans. Connecticut Acad. Arts and Scl., vol. 2, 1870, p. 171. 

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