107. COTTID.E TRIGLOPSLS. 709 



Selsk. Nat. Math, v, iii: Coitus fdbricn Girard, Monogr. Cott. 59: Cotins tricuspls Giin- 

 tJier, ii, 168; Phobctor triciispis Kroyer, Natur. Tidskr. i, 263, 1844: Bean, Bull. U. S. 

 Nat. Mus. xv, 127, 1879: Cottus ventralis Collett, Ckristiania Vicl. Selsk. Fork. 1678, 

 151.) 



1O89. G, g-aBeaUias Beau. 



Olivaceous; back with four distinct browo 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, aud 

 in males the ventrals also, reaching beyond vent; maxillary reaching 

 to below eye. Head 3| (including caudal); depth 7. D. XI-16; A. 

 19; V. I, 3. Unalashka. (Bean.) 



(Beau, Proc. U. S. Nat. Mus. 1881, 153.) 



369. THKGLOPSIS Girard. 



(Ptyonottts Gthr.) 

 (Girard, Proc. Bost. Soc. Nat. Hist, iv, 18, 1851: type Triylopsis 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 spines straight, 

 simple; fins large. Fresh- water fishes, closely related to Cottus, to 

 which genus the single known species should, perhaps, be referred. 

 Its relations with the group called Oncocottus are certainly intimate. 

 a, Trigla ; o'yk, appearance.) 



IC9. T. HfiiKunniipsoMi Grd. 



Pale olivaceous, with darker blotches; upper 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 sj>ace, 4 in head; jaws subequal; mouth large, the 

 maxillary extending rather beyond middle of eye; preopercle with 4 

 sharp spines, the upper much shorter than pupil; cavernous structure 

 of skull highly developed; upper surface of head smooth; gill-mem- 



