ecm BU inl ole Aw. 
7 
Genus XXII. Large flat head, armed with 
fharp fpines. 
Six branchioftegous rays. 
BuLL-HEAD. 
ee 
Bolras. Arif. Hifl. am, lib, iv. 
c. 8. 
Chabot. Belon. 213. 
Cottus. Rondel. Fluviat. 202. 
Gobio capitatus. Ge/ner pi/c. 
401. 
Een Miller. Schavenckfelt. Siles. 
431. 
Bull-head, Miller’s Thumb. 
Wil. Icth, 137. Rati fyn 
Bi Oi es Pa Ba Ae 
Cottus alepedotus glaber, ca- 
pite diacantho. Arted. fynon. 
76. ne 
Cottus Gobio. C. levis, ca- 
pite fpinis duabus, Liz. fy. 
452. 
aa pa, Slage-fimpa. Faun. 
Juec. No. 323. 
Koppe. Kram. 384. Gronov. 
Zooph. No. 270. 
; pile» 76. 
HIS fpecies is very common in all our clear 
brooks; it les almoft always at the bottom, 
either on the gravel or under a ftone: it depofits its 
fpawn in a hole it forms in the gravel, and quits it 
with great reluctance. It feeds on water infects ; 
and we found in the ftomach of one the remains of 
the frefh water fhrimp, the pulex aquatilis of Ray. 
_ This fifh feldom exceeds the length of three inches 
and an half: the head large, broad, flat, and thin at 
its circumference, being well adapted for infinu- 
ating itfelf under ftones: on the middle part of the 
covers of the gills is a {mall crooked {pine turning 
inwards, 
The 
