Class IV. RIVER BULL HEAD. 



sgi 



GENUS XXX. BULL HEAD. 



Head large flat, armed with sharp spines. 

 Rays branchiostegous six. 



B&Vroj. Arist. Hist. an. Lib. 



Lv. c. 8. 

 Chabot. Belon, 213. 

 Cottus. Rondel. Fluviat. 202. 

 Gobio capitatus. Gesner pise. 



401. 

 Een Miiller. Schwenckfelt 



Siles. 431. 

 Bull-head, Miller's Thumb. 



Wil. Ichth. 137- Rati Syn. 



pise. 76. 

 Cottus alepidotus glaber, ca- 



pite diacantho. Arted. Sy- 1- River. 



non. 76. 

 Cottus Gobio. C. laevis, ca- 



pite spinis duabus. Lin. Syst. 



452. Gm. Lin. 1211. 

 Sten - simpa, Slagg - simpa*. 



Faun. Suec. No. 323. 

 Koppe. Kratn. 384. Gronov. 



Zooph. No. 270. 

 Le Chabot. Eloch ichth. ii. 1 1 . 



tab. Sg.f. 1.2. 

 De la Cepede Hist, des Pais' 



sons, iii. 252. 



X HIS species is very common in all our clear 

 brooks ; it lies almost always at the bottom, 

 either on the gravel or under a stone, deposits 

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

 quits it with great reluctance. It feeds on 

 water insects ; and we found in the stomach of 

 one the remains of the fresh water shrimp, the 

 pulex aquatilis of Kay. 



u 2 



