FISHES. ACANTHOPT. 
Serranus. 
belly has a lighter tinge of the same colour. When out of season, the whole 
has a dusky lead colour. It weighs about three pounds.” 
Gen. LXIX. DENTEX, — Fore-teeth produced, hooked, 
with smaller ones behind ; on the sides a row of conical 
teeth, 
139. D. vulgaris .- — Body silvery, fins yellow or red. 
Spams Dentex, Linn. Syst. i. 47 I. Don. Brit. Fishes, t. Ixxiii.—On the 
coast of Sussex. 
Length upwards of 2 feet. The back and sides have a tinge of red, the 
belly of yellow, with fuscous clouds. D. P* 12, V. 5, A. f, C. 19.— An 
example of this fish was procured by Donovan from the Billingsgate market, 
9th April 1805. 
Gen. LXX. SERBANUS. ( Cuvier .) — Head scaly. Mar- 
gin of the preopercle dentated ; the opercle spinous. 
140. S. Norvegicus . — Preopercle with five teeth. Scales 
with denticulated margins. 
Perea marina, Sihh. Scot. 24. Linn. Syst. Nat. i. 483. — P. Norvegica, 
Fah. Fauna, Gr. 167. Penn. Brit. Zool. iii. 258 — Not common. 
Length about a foot. Body oblong, compressed, reddish above ; beUy 
white. Mouth large. Teeth small, numerous. Head depressed. Subor- 
bitars dentated ; spines on the head above the eye ; opercle pointed, with 
two strong spines. D. P. 18, V. i, A. f, C. 18. The soft rays of the 
dorsal fin produced. Tail nearly even. — The late Dr Skene observed this 
fish on the Aberdeenshire coast. In Zetland, where I have found it, it is 
termed Bergylt., or Norway Haddock. 
Gen. LXXI. CERNUA. Ruff.— Head pitted, without scales. 
Preopercle dentated ; opercle with a spine. 
141. C.fmviatilis. Common Ruff. — Back and sides yellow- 
ish-green, with black spots. 
Merr. Pin. 190. Will. Ich. 334. — Perea cernua, Linn. Syst. i. 487. 
Penn. Brit. Zool. iii. 259. Don. Brit. Fishes, t. xxxix — In rivers in 
England. 
Length about 6 inches. Scales with denticulated margins. Mouth small, 
teeth numerous. D. jf, P. 15, V. i, A. |. Tail formed with transverse 
bands. Gregarious, spawning in March, and frequenting deep water. 
The Black Fish of Mr Jago approaches the ruff in form, but the short 
description which he has left, and the manufactured figure which Borlase 
has published, render it impossible to identify the species at present. Bor. 
Corn. p. 271 . tab. xxvi. f. 8. 
Gen. LXXII. PERCA. Perch. — Snout short, without 
scales. Preopercle dentated, opercle spinous. Teeth nu- 
merous. Scales denticulated. 
