COTTIJS. 
The head broad, depressed, rounded in front. Body compressed 
behind; head and body covered with a soft skin, without scales. Two 
dorsal fins of moderate height. Slight teeth in the jaws and front of 
the vomer. No air-bladder. 
MILLEE’S THUMB. 
RIVER BULLHEAD. 
Gohius capitatua, 
tt (( 
OoUus gobio, 
(C << 
<( (( 
(( ft 
f« (( 
Cotte chabot, 
JoNSTOK; pi. 29, fig. 11. 
WjLLOuGHBr; p. 137, Table H. 3, f. 4. 
Linn^us. Cuvier. 
Bloch; pi. 39, f. 2. Donovan; pi. 80. 
Lacepede. Fleming; Br. An., p. 216. 
Jbnyns; Manual, p. 343. 
Yarebll; Br. Fishes, vol. i, p. 71. 
Gunther; Cat. Br. M., vol. ii, p. 159. 
This little fish is well known in most of the gravelly streams 
of the United Kingdom, and is also found in the cooler districts 
of Europe and Asia, where it hides itself under stones, from 
which, in changing place or seeking its prey, it may rather 
be said to dart itself than to swim, so sudden and quick are 
its usual motions. Its food is the smaller animals of fresh 
water, the spawn of fish, and also the young ones in the 
early stage of their existence, whilst itself becomes the prey 
of the larger natives of the stream. As might be expected, 
it readily takes a bait, hut its skin is so slippery as to glide 
through the fingers when an attempt is made to grasp it. 
They are said to drop their spawn towards the end of 
March, and the manner in which this business is conducted 
has been differently described by different writers. Jonston, 
