120. GADID^E OXOS. 
797 
late; tail isocercal ; ventral fins of 5 to 7 rays. Small fishes of the 
northern seas ; the species dilfering’ considerably among themselves. 
{Onos, an ancient name of certain Gadoid fishes; from an ass.) 
a. Barbels four; bead anteriorly high and compressed; iio large canines. {Ultinotie- 
ntus Gill.) 
1226. O. CHBSlbl'itls (L.) Goode & Bean.— Four-iearded Fockling. 
Brownish, posterior jiart of dorsal and anal, and lower margin of cau- 
dal abruptly black ; inside of mouth black. Head oblong, compr(>ssed, 
the snout high, its anterior profile blunt; mouth large, inferior; a barbel 
at chin, one at end of snout, and one on each anterior nostril; maxillary 
reaching much beyond eye; teeth in narrow bands, some of them con- 
siderably enlarged; lateral line stitch like, developed at intervals. 
First (free) ray of dorsal as long as head; ventrals about half length 
of head; caudal somewhat acute. Head 5; depth G. D. 50; A. 43; 
y. 5. L. 12 inches. Korth Atlantic, on both coasts. 
{Gadus cimbriiis Liiiumns, Syst. Nat.: Motella cauduenta Storer, Hist. Fish. Mass. 
361: Motella cimhvla Giiiither, iv, 367: lihinonemus caudacuta Gill, Proc. Acad. Nat. 
Sci. Phila. 1863, 241.) 
aa. Barbels three. (Onos.) 
1227. O. I’eaBihardli (Kroyer) Gill. 
Uniform reddish brown; cirri and tips of fins red. Head d«!pressed, 
but rather pointed anteriorly; snout rather short, with two barbels; 
chin with one; teeth in villiform bands, those of one series in each jaw 
longer than the rest. First ray of first dorsal short, little longer than 
snout. Vent near middle of length. Distance from snout to first dor- 
sal - 1 % of length. Heads. D. oG; A. 45; Y. 8. Greenland. {Collett.) 
C Motella argentata Reinh. Selsk. Nat. Math. Afh. 1837, 110: Motella reinhardU 
Kroyer MSS. ; Collett, Norske Nord-Havs. Exp. 18s0, 131 : Onos reinhardfi Gill, Proc. 
Acad. Nat. Sci. Phila. 1863, 241: t Concilia argentata Giinther, iv, 363, the young of 
this or other species of Onos ; small, silvery lishes, swimming at the surface in the 
open sea.) 
1228. O. CBisas (Reinh.) Gill. 
Head small; snout with two barbels; chin with one; teeth feeble, 
uniform, in villiform bands; palatine teeth villiform. Vent nearly me- 
dian; distance to front of dorsal f of length. First dorsal ray pro- 
duced, as long as head. Head 5^; D. 59; A. 4G. Greenland. {Col- 
lett. ) 
{Motella ensis Reinh. Dansk. Vidensk. Selsk. Nat. vii, 115, 1838: Ohos c/isis Gill, Proc. 
Acad. Nat. Sci. Phila. 1863, 241; Collett, 1. c. 134.) 
