fi54 



Bt'IJ.KTIN OF THP: T'NITEn STATKS FISH (K >MlVnSSION. 



length e(|iials that uf snout, ami tlii'y fxli'iid (.nc-loiirlli the ilistam-f lictwi'cii I heir base ami thf origin 

 of anal fin; in tlie .snialliT rotypes tliey are a little longer, Imt tliey never reach middleof [x'etoi-al tins; 

 in A. jiii>iiiiifit.i, the ventrals are iniieh more slender and elongate, extending more than tliree-fonrths 

 di.stanee to vent, and dilated and flattened at tlieir tips. 



t'olor dusky translucent, li)is and terminal halt of ventral tihimeiits white; otfier fins jet-black; 

 month and gill-ca\ itios and ]ierifijiieum |iale. 



Contents of stonia<'h consisting laigely of very small sca-\nchins, occasionally with ser|ient-stars 

 and hermil crabs. 'Phc stomach is very wide, without flexure, passing directly into the capacious 

 intestine. No pyloric cu'ca are developed. The liver is \'ery small. 



Fir:. '1^''<. — Alf'ff'uiiiis pficalf_itus Ciilbcrt, new specie-^. Tyin.'. 



.1. /ilii-itlr/l]is agrees with .1. imUcitf! .\lcock in the short tajiering ventrals, but differs in the larger 

 eye, the heavier, less projecting snout, the larger mouth, and the lighter color. 



In the cotypes of .1. jilirntellufi, which equal in size the type of ,1. iiidiciiK, the snout is broadly 

 ronndeil and overpasses the mouth for a distance less than t wo-tifths its i)reocular length, the <liameter 

 of eye ecpials four-sevenths the length of snout, and the I'left of mouth reaches vertical from front of 

 pupil; vertical fins and pectorals jet-bla<-k, color otherwise uniformly grayish, without trace of dark 

 brown or ptn'ple-black. 



The s|iecies was taken at stations Xos. I^.HliS, Pailolo ( 'hamiel, L'94 t(j 6S4 fathoms; and MilbS, off the 

 l^outli coast of (Jahu, l'')7 to 'ilW fathoms. 



raiiiily LYC()l)AriI).+:. 



Snyderidia, new genus. 



Body compressed; mouth oliliijue; premaxillaries protractile; mandible included; eidarged fang- 

 like teeth present in jaws and on vomer and palatines; no barbel; preopercular margin not adnate; 

 head without spines; gill-openings continued forward to below eye; gill-membranes separate, free 

 from isthnms; branchiostegals 7; pseudobranchia^ present, much reiluceil; gill-rakers pre.sent; 4 gills, 

 a wide slit behind fourth arch; skin thin, not lax, scaleless; no lateral line; <lorsal and anal beginning 

 near head, continuous around end of the whip-like tail; no ventrals; pectorals narrow; stomach thick- 

 walled; i^yloric cicca 2, short and thick, on opjiosite sides of the pylorus. 

 ,'>nyilirtflia Gilbert, iK-w ^'cnus of Li/codn]>i'l:f icniiuaf. 



