142 



BULLETIN 97, UNITED STATES NATIONAL MUSEUM. 



First leg much slenderer and shorter than second; second leg 

 Hearly as long as third and less stout, its propodus tapering distally : 



first and second dac- 



FIG. 86. PlXXIXA TOMEXTOSA, FEMALE HOLOTYPE, EN- 

 LARGED, a, CHELA ; 6, THiHD LEG ; c, FinsTLEG. (AFTEB 

 HOLMES.) 



curved, third and 

 fourth dactyls stout, 

 short, and more curved 

 but not hooked; third 

 leg very wide, merus 

 a little more than ono 

 and a half times as 

 long as wide, propodus 



nearly square; fourth leg similar in shape but much smaller. 

 Measurements. Female holotype, length of carapace 7.5, width of 



same 14 mm. (After Holmes.) 

 Range. San Clemente Island, California, to Angeles Bay, Gulf of 



California. 

 Specimen examined. San Clemente Island, California; H. N. 



Lowe, collector; 1 female without chelipeds (29948). 



PINNIXA FABA (Dana). 



Plate 31, figs. 1-4. 



Pinnothcra faba DANA, Proc. Acad. Nat. Sci. Philadelphia, vol. 5, 1851, p. 

 253 [7] (type-locality, Puget Sound; type not extant); U. S. Expl. 

 Exped., vol. 13, Crust., pt. 1, 1852, p. 381 ; atlas, 1855, pi. 24, fig. 4 a, b, c. 



Pinnixa faba STIMPSON, Journ. Boston Soc. Nat. Hist., vol. 6, 1857, p. 470 

 [30]. COOPER, Repts. Explor. & Survey, Miss. River to Pacific O., vol. 

 12, book 2, I860, p. 387. NEWCOMBE, Bull. Nat. Hist. Soc. British Co- 

 lumbia, 1893, p. 25. HOLMES, Occas. Papers California Acad. Sci., vol. 

 7, 1900, p. 93. RATHBUN, Harriman Alaska Exped., vol. 10, 1904, p. 

 188 (part; not from Sitka or San Pedro). WEYMOUTH, Leland Stan- 

 ford Jr. Univ. Publ., Univ. ser. No. 4, 1910, p. 59 (part), not speci- 

 men from Monterey Bay or text-fig. 7. Probably not Pinnixa faba lias- 

 well, Cat. Australian Crust., 1882, p. 113, from Port Denison, Australia. 



Pinnotheres faba BATE In Lord's Naturalist In Vancouver Id. and Brit. 

 Col., vol. 2, 1SGG, p. 271. 



Pinnixa HttoraUs WEYMOUTH, Leland Stanford Jr. Univ. Publ., Univ. 

 ser. No. 4, 1910, p. 58 (part: text-fig. 5 and examples from Puget 

 Sound ) . 



Diagnosis. Carapace oblong. Orbits oval. Dactyli of legs 

 strongly curved. Thumb horizontal, a little shorter than movable 

 finger. Fingers of female not gaping. Merus of third leg of male 

 more than twice as long as wide. 



Description of male. Carapace firm, smooth, rounding steeply 

 downward in all directions, truncate at the sides; gastric region high, 

 not cristate. Antero-lateral margin marked by a low, blunt ridge, 



