796 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



closely joined ; caudal short and slender; tail diphy cereal, truncate at 

 base of caudal; anal papilla large (in ^); stomach large, with two short 

 pyloric cue c a. (tJc^, two; v/7/y.a, thread; t'/^uc, fish.) 



rt. Head ueasly or quite scaleless. {Rallas* Ayics.) 



1223. D. inargfiuatus (Ayres) Gthr. 



Keddish brown ; fins broadly edged with bright rose red. Head with 

 traces of very rudimentary scales sunken in the skin ; eye well forward, 1^ 

 in snout, 7 or 8 in head ; maxillary reaching beyond eye a little less than 

 half length of head; teeth of jaws subequal, in broad bands; palatine 

 teeth in a short band, shorter than eye. Fin-rays slender, imbedded 

 in skin; pectorals moderate, a little more than half length of head; 

 ventrals half length of head ; nape nearer origin of dorsal than tip of 

 snout; vent slightly behind middle of body; candal as long as eye and 

 snout; a conspicuous pore above tip of maxillary; two pores at chin; 

 anal papilla without horny appendages; lower lip with a fringe of 

 minute cirri. Head 4|^ in length; depth about C. D. about 80; A. 

 about 65. Coast of California, rather rare ; in deep water. 



{Brosmius marginatus Ayres, Proc. Cal. Acad. Nat. Sci. i, 13. 1854: Halias marqi- 

 iiatus Ayres, Proc. Cal. Acad. Nat. Sci. 1860, 52; Giiuther, iv, 375: Brosmoplnjds mar- 

 (jlnatus GiW, Proc. Acad. Nat. Sci. Phila. 1831, 168; 1863, 253.) 



436.— ONOSt Ayres. 



RocJilings. 



( MbfeHa Cuvier: jl/bZi'eZ/a Kaiip: Rhinonemus GiW: Ciliata Conch, and CoHc/ifa Thomp- 

 son, young forms.) 



(Risso, Hist. Nat. d'Eur. Merid. iii, 214, 1826: type Onos musteUa Risso=Garf«s triclr- 

 rutuii Bl. & Sclin.) 

 Body rather elongate, covered ^vith very small scales; head more or 

 less depressed; lower jaw included; chin with a barbel; snout with two 

 to four barbels, one on each anterior nostril; teeth in bands on jaws and 

 vomer; none on palatines; some of the teeth in upper jaw sometimes 

 enlarged or canine-like; dorsal fins two, the anterior composed of small 

 fringe-like rays concealed in a groove, in front of these a single long 

 ray; second dorsal long; anal similar; caudal fin rounded or lanceo- 



* Ayres, Proc. Cal. Acad. Nat. Sci. ii, 52, 1860: type Brosmius marginatus Ayres. 

 (hA.?, the sea.) 



tWe do not adopt the earlier name Gaidropsarus of Rafiues<ine, because we find 

 lirtle evidence that the rough ligure of Roudelet, on which Gaidropsarus mustcUaris 

 Rafiuesque was fouuded, was intended for a species of Onos rather than of rhycis. 

 Enchehjopus Bloch &. Schneider is a heterogeneous group, including; species of Gadus, 

 of which genus it may be considered a synonym. 



