THE GKAPSOID CRABS OF AMERICA. 



151 



Chelipeds granulate; palm stout, 1.5 times as long as wide, with 

 longitudinal rows of pubescence; fingers horizontal, two-thirds as 

 long as palm, slightly gaping, tips hooked. 



Legs margined with broad bands of spinuliform granules and 

 having straight dactyls ; first two pairs narrow, dactyls slender ; third 

 pair similar but much larger; fourth pair narrowest, slightly over- 

 reaching merus of third, its dactylus shorter and relatively stouter. 



Sternum granulate along margins of segments. A few granules 

 on abdomen; sixth and seventh segments of abdomen narrowest; 

 third, fourth, and fifth of subequal length. Surface of carapace, 

 chelipeds and legs pubescent. 



Measurements. Male holotype, length of carapace 1.3, width of 

 same 2.3 mm. 



a 



FlO. 92. PINNIXA JIIXUTA, MALE HOLOTYPE. fl, CAIIAPACE, ANTENNAE AND EYES, X 18J ; 



6, LAST THKEE ABDOMINAL SEGMENTS AND ADJACENT STEUNUM, X 18 ; C, U1GHT CHELA, 



X 27; d, THino LEG, X 18 ; e, ENDOGNATH OF OUTEU MAXILLITED, uccn ENLABUED. 



Locality. Porto Rico: Mayaguez Harbor, Point del Algarrobo E. 

 4| miles; 1C to 17 fathoms; M. S.; temp. 23 C.; Jan. 20, 1899; sta- 

 tion COG6, steamer Fish Hawk; 1 male holotype (237G8). 



PINNIXA CHAETOPTERANA Stimpson. 



Plate 33, figs. 3-6. 



Pinnixa cylindrica STIMPSON, Ann. Lye. Nat. Hist. New York, vol. 7, 1859, 

 p. GS. Not P. cvUMrica (Say). SMITH, Kept. U. S. Fish Coinmr., vol. 

 1, 1871-72 (1873), p. 546 [252] (part: ref. to South Carolina). 



Pinnixa chactoptcrana STIMPSON, Ann. Lye. Nat. Hist. New York, vol. 7, 

 I860, p. 235 (type-locality, Charleston Harbor, South Carolina, on 

 muddy or clayey shores, In tubes of Chactopterus pcryamcntaccns; 

 type not extant). KINGSLEY, Proc. Acad. Nat. Scl. Philadelphia. 1878, 

 p. 324 [91 ; 1879 (1880), p. 402. FAXON, Bull. Mus. Conip. /oiil., vol. 5, 

 1S79, p. 2G4, pi. 4, figs. 1-4 (zoea) ; pi. 5, figs. 8, 9 (chelipeds). SMITH, 

 Trans. Connecticut Acad. Arts and Sci., vol. 4, 1SSO, p. 250. VXKBILL, 

 Anier. Journ. Sci., ser. 3, vol. 24, 1882, p. 371. 



