1804. 



PROCEEDINGS OF THE NATIONAL MUSEUM. 69 



EPIALTUS (ANTILIBINIA) DENTATU8, (Milne-Edwards). 



Epialtus dentatHS, Milnk-Edwards, Hist. Nat. Cnist. l,p. 34.5, 1834.— Bell, 



Trans. Zool. Soc. London, ii, p. 62, 1835. 

 EpiaUus (AntiUhinia) (lcnfafHS,Ml'E'RS, Jour. Linn. Soe. London, xiv, ]>. G.W, 1879. 



Localities. 



Panama ( ?) ; J. M. Dow; 1 female (2402). 



West Coast of South America; Dr. H. E. Ames, U. S. N. ; 1 female (18138). 

 Callao, Pern; U. S. Exploring Expedition; 1 female (2365). 

 Valparaiso, Chili; U. S. Exploring Expedition; male and female (2367). 



The specimens collected by the United States Exploring Expedition, 

 although labeled by Dana, were omitted from his report. 



EPIALTT^S (AXTILIRIXLV) MARGINATrs, (Bell) 



EpiaUus marf/inafus, Bell, op. cit., p. 62, pi. xi, fii;. 4 (9), pi. xiii ( ,^ ). — A. 



Milxe-Edwards, op. cit., p. 138, 1878. 

 EpiaUus {AntiUhinia^ mnrginatns, Mikrs, Joe. cit. 

 LocaVity. — Vnli)araiso; T^. S. Exploring Expedition: mnle and female 

 (2372). Labeled but not recorded by Dana. 



EPIALXrS (ANTILIBINIA) NIJTTALLII. (Randall). 



EpiaUus nutiaUii, Randall, Jour, Acad. Nat. Sol. I'hil.i., \ iii, ]>. KHi, \>\. iii, 

 1839. 



LocaUiics. 



Santa Barbara, Cal. ; D. S. Jordan, 1880 (3108). 



San Diego, Cal.; H. Hemphill; 7 young females (18139). 



Southern California; W. II. Dall; 1 young female (14798). 



PUGETTIA GRACILIS, Dana. 



Pugettia (/raciUs, DA^\,op. cU., I, p. 117, pi. 4, fig. 3. — Stimp.son, op. cit., p. 456. 



LocKiNGTON, Proc. Cal. Acad. Sci., vii, p. 76, 1876. — Miers, Jour. Linn. 



Soc. London, xiv, p. 650, 1879; ChaUengcr Rept., Zool., xvii, p. 40, 1886. 

 PugcUia lordii, Spence Bate, iu Lord's Nat. in Brit. Col., i, p. 265, 1866. 

 Pugettia quadridens var. gracilis, Ortmanx, Zool. Jahrb., vii, 1, p. 43, 1893. 



In many specimens the wing-like lateral expansion is strongly 

 upturned, and there are four tubercles on each branchial region, one 

 in line witli the cardiac tubercle, onie further back but nearer the 

 median line, while the other two are further forward on the branchial 

 region. Tlie upi>er surface and margins of the rostral horns and the 

 inner margin of the pnieorbital teeth are marked with lines of curled 

 setaj. The carpus of the cheliped, besides the two carina', above, has 

 a strong carina on the inner margin, and is irregularly ridged on the 

 outer surface. In large males, the hands arc very wide, compressed, 

 with the upper carina very thin and prominent; fingers gaping at base, 

 with a sliort, stout tooth on the dactyl. 



The color of dried specimens recently received from Dr. Newcombe 

 is red and green above, and red beneath. 



MenHurcmeuU. — Length of largest specimen, o,'? mm.; l>rancliial width, 

 including spines, 40; length of cheliped, about ^^G; width of hand, 18. 



