6 



BULL HEAD. 



Class IV. 



XXII. BULL- 

 HEAD. 



Large fiat head, armed with fharp (pines. 

 Six branchioftegous rays. 



97. River. Boiroc. Arlji. Hlfl. an. Lib* Cottus alepedotus glaber, ca~ 



IV. c. 8. pite diacantho. Arted.fynon. 



Chabot. Belon, 213. 76. 



Cottus. Rondel Flwviat. 202. Cottus Gobio. C. lsvis, ca- 



Gobio capitatus. Gefner pifc. pite fpinis duabus. Lin. 



401. fyfi. 452, 



Een Miiller. Schwenckfelt Sten-fimpa, Slagg-fimpa. 



Sites, 431. Faun Suec. No. 323. 



Bull-head, Miller's Thumb. Koppe. Kram. 384. Gromv* 



Wil. Icth. 137. Raii Jyn. Zooph. No. 270. 



fife. 76, 



THIS fpecies is very common in all our clear 

 brooks -, it lies almoft always at the bottom, 

 either on the gravel or under a (tone : it depofits 

 its fpawn in a hole it forms in the gravel, and 

 quits it with great reluctance. It feeds on water 

 infecls \ and we found in the ftomach of one the 

 remains of the frefh water fhrimp, the pulex aqua- 

 tilis of Ray. 



This fifti feldom exceeds the length of three 

 inches and an half: the head large, broad, flat, 

 and thin at its circumference, being well adapted 

 for infingating itfelf under ftones : on the middle 

 p< rt of the covers of the gills is a fmall crooked 



fpine turning inwards. 



The 



