vol.. xvi.n 

 I80:i. J 



I'KOCKKDINOS OF JlIK iSAI'lONAL MUyi'JUM. 

 itr.coKi) (»!' .si>k(,'imi:n.s kxamlnkd. 



24!) 



Fioiii Iliiiliiik Karlior, l'ii:il;isk;i, to (ir.iy's llnilior, W.iHliiiij^ldii ; U.S. FIhIi Cotn- 

 iiiisBion Hic.'iiMcr AlhalronH, IXSS-IWH): 



2ms 

 2sm 



287(1 

 :t'_'lo 

 :!:in 

 xnn 



Mask. I, \V. II. Dull: 



-v.s. P .. 



Ky.s .... 



l.k. S 



■■li.v 



I)k. S. M.. 



tiu. M .... 

 Iiio. bk. S. 

 Kii. M .... 



'ri'iii|iiT- 



mIiiii'. 



44.7 

 40. >.) 

 48,4 

 40. 5 



Locality 



Port LnvaHlieH' 



I'ort l,cv:i.slif(r 



Oliiualka (\>\i; Kailiak .... 



Port Ktchiis 



Sitka Harbor -. 



FatlioiiiM. 



20 30 

 70 KO 

 12-14 

 12 18 

 15 



41.0 

 42.7 

 43.9 



(.'at No. 



17470 

 17471 

 17172 

 17473 

 17474 

 1747.''. 

 17470 

 17477 



Itottoiii. 



M.Sh 

 M. SI 

 M.S.. 



(Jat. No. 



17513 

 17514 

 17512 

 17511 

 17510 



Sail l»iego, California; H. Heinjiliill, ouo male, dritid (17r»()l). 



Pinnixa californiensis. 



'IMio ^(^THis Pinniva is rcjni^sciiitMl on llMM-oitsI ol' (Jiilifoiiiiji by aii- 

 otlier sppcic^s imuili rpsoinblinj;- tlie one (h'.sciihcd abov<!, but siillicieiitly 

 distinct. Tiie carapace is siiorttM-, tliecaidiac ridj^c^stra-i^liter tlirouj^ii- 

 out its lenj^th, the aiiter()-lat(Tal ridj4e stiaij^bler and less arelied, and 

 the carapace (b'sctMids more abnijitly at tiie sitb's. The (Vont, orbits, 

 and maxillipeds do not difler from those of oecidentalis. 'I'he abdomen 

 of the male has the maijiins of the se(;ond sej;inent j)aiallel, while in 

 oeci(h-iit(tiis the se<;ineiitis wider at the distill than at the|»i()\ima.l end. 

 In mah^, s])ecim(^ns the i)ollex is shoiter than in occidcuUdi.s, and conse 

 (piently the dactyl is more nearly parallel with the end of the palm. 

 The chelipeds in U\r, lemalci and the ambula.loiy lej^s in bolh sexes re- 

 semble those oC occithntalis. 



Length of S (5, witlth {'■'>; len<;th of third ambulatory lej,^ about 17.5 

 millimeters. 



Monterey I»ay and o(f Point Ano Nnevo, California, II. S. I'Msh Com 

 mission steanicr /llhutiosn, 1S90: 



