244 



Ni:\V (JKNERA AND SI'KCIES OK (KAUS KATlllUiN. 



\v,iX llu' <'(>\;i' ol' t lie lil'lli pair of le^s; from tlu^ lliird scmnciit to the 

 cxtrcinity Hii' abdonicn is almost tiiaii,i;iilar, tlic sick's Ncry liltk'cini 

 ('a\r; Iciiniiial sc^iiu'iit longer than broad, obtuse; appciKhi^cs widely 

 sci>;iriited at base, terininatini; in loii.y' slendci' lilanHMits ciossini; each 

 other near the tii)s. JVIaxillijx'ds widely j^apini;; ineral Joint with 

 anteiior luarjiiii eoncave, inner inar.uin convex, i)alpus articulating- at 

 the antero interior ans'le. Chelipeds efjual, i;ranulate; nierus with a 

 tooth above, one-third the distance from the distal end, and one near 

 the distal extremity of the lower outer margin, ('arpus short and 

 broad, a sharj) cnrved spine on the inner side near the i)roximal end; 

 outer surface of carpus and manus covered with loiij;' hair; hands com- 

 ])ressed, spinulous on the lower marj^in, smooth inside, except for a 

 line of spinides ruiinin,i;' from the lower nuu\i;in near the i>ollex diaj?- 

 onally backward; upi)er marj^in with a small spine at the anterior 

 extremity; tini^ersbent downward, irre.uularly toothed within, not j?ap- 

 in<;', curvinj; toward each other at the tips. Ambulatory l(\i;s lony' and 

 slender, clothed with downy hairs, whicli are lon^^est on the last three 

 joints; third i>air longest. 



Leni;th, 1 I; widlli, exclusive ol' teeth, KI..3 millimeters, 

 '(lulf of Calilbiiiia; U. iS. I'isli Oomiuissioii steamer Alhidross^ 1889: 



;i(ii7 

 ao;!5 



Long;. W, 



ICJ r)7 00 



ii:j 01 00 

 114 •-•:) I.') 



Fathoms. 



Bottuiii. 



ixn. M 

 liu. M 

 K.V. M 



Cat. No. 



174(i2 

 174(1;! 

 17464 



The cheli|»cds (»f lliis species in sliajte and hairiness aie very like 

 those of ('. vcstitus (de llaan), but that species is br(»a(ler and has 

 much smaller anterolateral teeth, as well as othei" striking; dilferences. 



Sid. family OCV I'ODIN.K. 



Gelasiiiius gracilis. 



This species is the west coast re]>resentative of pKtpKi.v Smilh, but is 

 <listin.mtislM'd by the more ((inNcx carapace, iiiiicli wider p(»s|erioily, 

 the more transverse anterior niarj;in, makinj; tiie cara]»ace more ree- 

 taii.milar. The front is narrower and coiise(piently the supraorbital 

 border is htujicr than in j)U<fii<t.v. The male abddmeii is much narrower 

 than in jntiin<t.t\\\\n\ the second se^iiient much shortei'. The ischium of 

 the outer maxillipcds is very broad and convex. The larg'c chelipedof 

 the male has the Joints relatively longer and more slender than in pnij- 

 nux', the merus is crossed by transverse tubercnlate ruga", and the inner 

 niargin is tubeiculate or denticulate; the carpus also has the inner 

 margin tid.erculate, the outer snrface roughened with flattened tuber- 

 cles arranged more or less in stria', and the inner surface crossed di- 

 agonally by tubercles; thei)alm is narrow near its arti«'ulation with 

 tin' carpus and is very tinely lubcrculale or granulate, the granules be- 



