6(50 



BULLETIN OF THE UNITED STATES FISH COMMISSION. 



olilique, its wiillli .'it iiiiu'lc .7 its Ic-ii'^tli; uiaxilUiry rciirhiiin; vfrtical thrdu^li uiiililk- of head, its 

 length coiitaiiicil I .s tiinrs in lie ■ad; tcctli iiiimitc, equal, arrnw-shaped at tiji, in a broad liand in jire- 



niaxillaries, wliere Ihey rearli angle el' i itli; mandible wlielly included anteriorly and laterally, its 



teetli not o])|>esi'd lo llmse in upper jaw; niandilmlar band narrower and shorter; no traee of a man- 

 dibular liarbel; snburbilal wide, its vertical width below nii<ldle of orl)it contained (i.5 times in head and 

 ei|naling greatest width nf the dilateil prenjiercular lindi; distance from hinder margin nf orbit to pre- 

 opercular angle eipial t'l h;df length of head; the middle i.f length of head falls behind nrbit a distance 

 equaling half diameter of pupil; the frnnt maigiii of luqie is midway between lip of snout and front 

 of dorsal; two libs diverge- from upper anterior opercMilar angle, the ui>pei- low and Hat, p;issing Imri- 

 zontallv baekwaril to I'ud in a Hat spinous iioiiil, the lower passing baekwaid and d(.\\ nward. nnicli 

 narrower and stniuger, and terminating in a ihtinite ]iairi>w s|iine; rarely a trac'c of a lliinl lib above 

 the ujiperone describeil; when present, it is found only on dissection, and tc-rminates far in advance 

 of the ui>per spine; (losterior portion of inti^roperele forming a narrow loTie which projects downward 

 and liackward beyond jireojiercle. Oill-niendiranes joined anteriorly, and tonuing a free fold across 

 isthnuis, with which they are not connected; anterior end of gill-slit behind orbit; widtli of fold half 

 a- long as eve; branchiostegals 7; gill-arches all containing double series of filaments, the fourth with 



f/.-y'^-. 



\ 



CilliiTt, new sjii'cie.s. Type. 



a short slit behind it; outer gill-rakera huig and slender, (i | L'L' in nundier; fi'W very small jisemlo- 

 branchial filaments; hyj^'rcoracoid perforate near middle of its height; origin of dorsal fin slightly in 

 advance of ])ectoi-als. 



Rays of the first dorsal are so badly broken in the type tliat nothing can be said of their char- 

 acter. In a cotype, 1-'I17 mm. long, from the same hicality, the rays are seen to be very slender and 

 fragile, all simple, apparently none of them i)roduced, the second but little more than \ length of head. 

 The 2 dorsals are clo.sely contiguous; seconil chirsal higher than anal, hut all the rays are injured; vent 

 s<>parated by its own diameter from front of anal, wiiich is vertically below eiglith ray of second 

 ilorsal; pectoral long and narrow, the second ray produced beyouil the otliers, rea<'hing to oiiposite 

 fourth or tifth anal ray, e(iualing distance from tij) of snout to iqvjier angle of ]ireopei-cle; outer ventral 

 ray elongate, nearly reaching vent, ;i length of head. 



Scales unarmed, thin, fallen o\er the greater part of all the specimens; they are very linely con- 

 centrically striati-d, the stride very finely granular; lateral liu<' not j.ositively determined; anteriorlv, 

 it seems to be represented by a series of distant jiores ]iarallel with back along npjier line of division 

 in body musculature, but this may not be its true position; 5 scales are present between this line and 

 base of anterior ray of second dorsal; 21 in a series u]>ward and backward from first anal ray to base of 



