FISHES. 
49 
uniform surface without any interruption. Its air-bladder tapered towards the anus, 
and enlarged towards the thorax, terminating anteriorly in a rounded bifid extremity, 
rising up on each side of the vertebral column, and reaching to within 2f inches of the 
back. No other part of the air-bladder was within 3 inches of the back. The anterior 
part of the air-bladder, opposite to the ventral fins, was 3 inches distant from the lower 
part of the belly. The air-bladder contained about seven cubic inches of air. The 
depth of the fish at the ventral fins was 8 inches.” — C. 
At Avatscha Bay, in Kamtschatka, many species of fishes were obtained, for the 
notes respecting which we are chiefly indebted to Mi\ Collie. They included several 
new species of the Acanthopterygian family & joues cuirassees of M. Cuvier, of which 
specimens were preserved ; these were the Cottus ventralis and the Cott. claviger, Cuv. 
and Val., the Aspidophorus 4-cornis, Eor., and the Per opus bilobus, (Blepsias bilobus, 
Cuv. and Val.) Specimens were also preserved of the Cottus diceraus, Pall., and of 
the Gasterosteus obolarius, Cuv. and Val. Mr. Collie’s notes refer to two other fishes of 
this family, which we have not possessed an opportunity of examining. One of these 
is apparently a Cottus: “its head was flat and broad, with a wide groove along the middle ; 
it had two spines before the eyes, directed upwards ; the eyes were nearly perpendicu- 
lar ; there were two spines on the (margin of the ?) prceoperculum, and two on the oper- 
culum, interiorly and posteriorly. D. 8, 15. A. 12, with three transverse black bands. 
V. 3, placed under the pectorals, and not extending to the vent. Pectoral fins large, 
extending as far back as the anus, and to opposite the fourth or fifth ray of the second 
dorsal. Abdomen ventricose. Colours, grey and black marbled : iris silvery, crossed 
by a longitudinal band. Mouth large. Stomach a large bag, in which was contained a 
small fish. Caca seven. Intestinal tube of three convolutions. Liver of a clay colour, 
tinged with yellow. No air-bladder.” — C. The other may have been an Aspidoidiorus: 
“ Snout long ; operculum posteriorly acutely angled, without teeth ; teeth on the lower 
' mandible and intermaxillaries {vomer smooth ?). Scales small. Lateral lines, two on 
each side, tuberculated. Dorsal fin in the middle, short. Ventrals under the pecto- 
rals, reaching half-way to the anus. Pectorals reaching about half-way between the 
extremity of the ventrals and the anus. Caudal fin rounded, of twelve rays, separated 
by some interval from the dorsal and anal. Colour brownish, with pale spots. No air- 
bladder. Stomach a bag. Cceca eleven. Intestines of three convolutions.” — C. Both 
of these were caught in the seine, and were of small size. 
The remaining fishes observed at Avatscha Bay were Malacopterygian. Of these four 
are species of the genus Salmo, L., two of which are indicated as the Salmo Eperlanus, and 
Salmo Trutta, but which it would of course be impossible to identify with those species, 
unless on a careful comparison of specimens: the other two, unnamed, are thus briefly 
described : “ Salmo, above bluish, beneath whitish, without spots ; teeth in the upper 
jaw short and distant, none on the palate, a few on the tongue. A thick-bellied fish, from 
one to two feet long, and rather pale.” “ Salmo, above dark blue, whitish beneath, spotted 
with grey ; teeth numerous. V arying in length from nine inches to two feet.” — C. The 
latter was the most abundant in the bay, and several hundred pounds’ weight of them were 
H 
