674 



BULLETIN OF THE I'NITKD STATES FISH COMMISSION. 



o|ipi-(']p slidwiii^' tliKPiinli; |H riti)nciiiii hliirk; iiliilomcii external ly Mui'-lihick, llir cdliir not ilependent 

 npon tlif lu'ritoneal i-nlur; anal whitii-h anlcridily, becnniing 1 !acUi>^li lieliiml in ailultr^; in vdung, 

 the second dorsal and anal are whitish tlirounliont; in adults, the se<'ijnd dorsal is blaek. 



Speeimens were olitained at the lollowini; stations: Nos. 411li, off tlie northwest eoast of ()alin, 

 241 to I'SL' fathoms; 4I-'L', off the sonthwest eoast of Oalui, lill' to .TiL' fatlionis; 41S0, off the east eoast 

 of Kauai, 2s:; to :!(ll» fathoms; 4132, (jff t!ie east eoast of Kanai, 257 to :-!l2 fathoms. 



ihliirliiim-hiis uliiiliiis Cilliert. it CnmuT, I'rof. tl. S. NiU. iMus., XIX. lsa7, fJl. pi. .\l.l. fig. ;i. 

 Ccelorhynchus aratrum, new species. Fi>;. 2(14. 



Related to ('. parnUiitix, hut differing in spination of scales and in the wholly smooth lower siilp 

 of liead, no scales or tubercles heins present ))elo\v the infraorhital ridire, except a very small [)atch 

 on lower side of snout near its tip. 



Type, 111:! nun. long, from station :i!)l(), off tin- smnh coast of ()ahu Island, ilejith Mil to o.S7 

 fathoms; type, No. 51650. U. S. Nat. !\Ius. 



Depth of body slightly more than half length of heail; 1). ii, 8; \. 7; I', l.s or li); ])yloric nvi-a II; 

 snout long, depressed, everywhere transversely cimvex, longitudinally a little coniave, ending ante- 

 riorly in a sliort but definite slender spine; width of snout opjiosite front of orbit equal to its length 

 from base of terminal spine to anterior nostril; lateral outlines of snout convex, the narrowing being 



■ >«<5 '^;--A''yi>V:',V. .. 



Flii. -'{''A —Crr/orh'/urbus (irnfriirii OiUuTt lluw spucit'^. TyjiL-. 



niiicli more ra|iid in its terminal half; width at middle of snout njore than half ils length; verlii-al 

 diameter of orbit contained 1.(1 times in the longitudinal diameter, which eipials the convex interorbital 

 widtli, and is contained 1.7 times in snout; upper margin of orbit nearly straight; posterior nostril 

 vertically elongate and weakly eresimtic, the anterior a roundish pore, separated from the posterior 

 bv a narrow black strip of integument; two pairs of I iw but W(41-marked spinous ridges on hip of 

 head, t he ouU-r pair continuous with supranrbital margin, its ]iosterior end innnedialely in acKanci- 

 of upper end of gill-slit; the inner pair begin in advance of juidiUe of interorbital space, ainl run in 

 paralli'l lines over oi'ci]pnt (in C /irrra/WH.s-tflie inner pair of ridges converge strongly to ne.ir their 

 posterior ends, then .livergel; meilian rostral ridge not evident in well-])reserved material; the strong 

 infraorbital rid^e runs from tip of snout to preopercular lobe, where it is surroundeil behind and below 

 bv a wide, smooth meudirane; uiijier lindi of jireopercle made <-oucave by the strongly projecting 

 angle; transverse width of mouth at tijis of niaxillaries equals half width of snout at same level, and 

 ecpials length of maxillary; front of mouth opposite posteriiu' nostril or slightly behind that point, tlie 

 end of iriaxillary extending to a point slightly in advance of posterior edge of pupil, its length lialf the 



