THE SPIDER CKABS OF AMERICA 165 



Chelipeds of old male longer than first ambulatory leg. Two 

 tubercles on upper edge, and one on lower surface, of proximal half 

 of arm; a tubercle on inner margin of ischium; a tooth at inner angle 

 of wrist; fingers gaping for two-thirds their length, and armed in the 

 gape with a few lobes or crenations which are more irregular than 

 those at the extremity. Propodites of legs armed below near the 

 distal end, with a tooth or lobe bearing a tuft of hair. The tooth in- 

 creases in size from the first to the fourth pair; in the old male it is ob- 

 solescent and bare on the first leg. The dactyls while diminishing 

 in length, increase in curvature from the first to the fourth. 



Male abdomen narrower than in T. nuttallii. 



Color. — ^Adult male, dark brown; young female, paler and reddish 

 (Bell). 



Measurements. — Male (40459), total length of carapace 100, width 

 80.4 mm. 



Range. — From Independencia Bay, Peru, to Talcahuano (Miers) 

 and Guajacan, Chile (Lenz). Galapagos Islands (Bell, A. Milne 

 Edwards). Rio de Janeiro (Bell). 



Material examined. — 



Peru; R. E. Coker; gift of Peruvian Government: Independencia 

 Bay; July, 1907; 2 carapaces (40461). Mollendo; taken in fish net 

 near shore; July 23, 1908; 2 males (40459, 40460). 



Chile: Caldera; June 14, 1863; Captain Putnam, 1 male, 1 female 

 (2029, M. C. Z.). Valparaiso; U. S. Exploring Expedition, J. D. 

 Dana; 1 male, 1 female (2372). 



TALIEPUS DENTATUS (Milne Edwards) 



Plates 54 and 55 , 



f Cancer xaiva Molina, Saggio sulla storia naturale del Chili, 1782, p. 206 

 (type-locality, Chile; type not extant); French translation, 1789, p. 182. 



Epialtus dentatus Milne Edwards, Hist. Nat. Crust., vol. 1, 1834, p. 345 

 (type-locality, Chile; type in Paris Mus.). — Bell, Trans. Zool. Soc. 

 London, vol. 2, 1836, p. 62.— Nicolet, in Gay's Hist. Chile, vol. 3, 1849, 

 p. 131. — Cunningham, Trans. Linn. Soc. London, vol. 27, 1871, p. 

 491. — Targioni Tozzetti, Zool. Magenta, Crost., 1877, p. 18, pi. 2, 

 figs. 1-4, 6-9, 11.— Miers, Proc. Zool. Soc. London^ 1881, p. 66.— 

 AuRiviLLiys, K. Svenska Vet.-Akad. Handl., vol. 23, 1889, p. 42. — Lenz, 

 Zool. Jahrb., Suppl. 5, 1902, p. 756. 



Inachus mitis Poeppig, Arch. f. Naturg., vol. 2, 1836, p. 141 (type-locality, 

 "ad littora prope Valparaiso, Talcahuano, etc."; type not extant). — 

 Nicolet, in Gay, Hist. Chile, vol. 3, 1849, p. 125. 



Epialtus (Taliepus) dentatus A. Milne Edwards, Crust. R6g. Mex., 1878, 

 p. 138. 



Epialtus (Antilibinia) dentatus Miers, Journ. Linn. Soc. London, vol. 14, 

 1879, p. 650.— Rathbun, Proc. U. S. Nat. Mus., vol. 17, 1894, p. 69. 



Diagnosis. — Four lateral teeth. A preorbital tooth. A postorbital 

 tubercle. Fingers of male narrowly gaping. Propodites of legs 

 armed below with a slisrht tooth. 



