107. COTTID.E TRIGLOPSIS. 
709 
Selsk. Nat-. Math, v, iii: Cottas fabricn Girard, Monogr. Cott. 59: Coitus tricuspis Giin- 
ther, ii, 168; Phobetor tricuspis Kroyer, Natnr. Tidskr. i, 263, 1844: Bean, Bidl. U. S. 
Nat. Mus. XV, 127, 1879: Cottas ventralis Collett, Christiania Vid. Selsk. Forh. 1678, 
151.) 
1089. g-aieatus Bean. 
Olivaceous; back with four distinct brown spots, the longest nearly 
twice as long as eye, and extending a little below lateral line, there 
blending with a wavy lateral stripe ; dorsals and pectorals with inter- 
rupted black bands; lower fins plain whitish. Body elongate. A small 
tubercle above each eye; four preopercular spines, the longest about 
as long as eye, and with two or three processes. Space between eyes 
deeply concave, completely covered with bony granulations, as are the 
crown and neck; similar granulations on hinder margin of orbit, on 
suborbital stay and on opercles. Skin of body naked. Pectorals, and 
in males the ventrals also, reaching beyond vent; maxillary reaching 
to below eye. Head 3| (including caudal); depth 7^. H. XI-16; A. 
19; Y. I, 3. Uualashka. {Bean.) 
(Beau, Proc. U. S. Nat. Mus. 1881, 153.) 
369.— TISIGI.OPSIS Girard. 
{Ptijonotas (iihx.) 
(Girard, Proc. Bost. Soc. Nat. Hist, iv, 18, 1851: type TrigJopsis thompsoni Grd.) 
Body and head slender. Skin naked; lateral line chain-like. Teeth 
on vomer, none on the palatines. Eyes large, the interorbital area con- 
cave; bones of lower part of head extensively cavernous; a small but 
distinct slit behind last gill ; gill-membranes almost free from the 
isthmus, forming a broad fold across it; preopercular si)ines straight, 
simple; fins large. Fresh- water fishes, closely related to Coitus, to 
which genus the single known species should, perhaps, be referred. 
Its relations with the group called Oncocottus are certainly intimate. 
{rpiyXa, TrigJa ; o'pk, appearance.) 
Iu9®. T'. UBaoEMpsosaa Grd. 
Pale olivaceous, with darker blotches; nipper fins faintly banded. 
Body elongate, very slender. Head long, depressed above; snout 
long and pointed; eye quite large, nearly as long as snout, much wider 
than iuterorbital space, 4 in head; jaws subequal; mouth large, the 
maxillary extending rather beyond middle of eye; preopercle Avith 4 
sharp spines, the upper much shorter than pupil; cavernous structure 
of skull highly developed; upper surface of head smooth; gill mem- 
