400 SYNOPSIS. 



surface rough, the scales being ciliated on their free edges ; 

 lateral line straight; caudal, pectoral, and ventral rays 

 rough ; mouth large, the under jaw rather longest ; colour 

 uniform pale brown, more or less tinged with yellow. 

 Jenyns" Brit. Vert., p. 459. Yarr. Brit. Fish., ii. p. 312. 

 Pleuronectes limandoides, Parnell, Edin. Phil. Jow., July 

 1835, p. 210. 



Sp. 174. P. elongata. Long Flounder. Head approaching 

 to circular ; jaws equal ; body much elongated and pro- 

 portionally much narrower than in any of the preceding 

 species ; lateral line straight throughout its course till it 

 reaches the operculum, when it rises in a slight curve : tail 

 elongated, the sides parallel : colour of the surface uniform 

 pale brown, of the under side pale wood-brown. Yarr. 

 Brit. Fish., ii. p. 318. 



GEN. LXXXII. HIPPOGLOSSUS. Body elongated and thick ; 

 eyes and colour on the right side ; jaws and pharynx armed 

 with strong sharp teeth; dorsal and anal fins nearly as in 

 Platessa, but diminishing more rapidly in length towards the 

 extremities. 



Sp. 1 75. H. vulgaris. Holibut. Body tapering much to- 

 wards the tail ; head rather small, teeth in two rows in 

 the upper jaw; lateral line arched over the pectorals; 

 surface smooth ; caudal concave at the extremity : colour 

 of the surface dusky brown, under side white. Cuv. Reg. 

 An. ; Jenyns* Brit. Vert., p. 460 ; Yarr. Brit. Fish., ii. 

 321. Pleuronectes hippoglossus, Linn., Penn. Brit. Zool., 

 iii. p. 302 ; Dm. Brit. Fish., pi. 75. 



GEN. LX XXIII. RHOMBUS. Eyes and colour on the left 

 side ; dorsal commencing immediately above the upper lip an- 

 terior to the eye, and reaching, as well as the anal, very nearly 

 to the origin of the caudal ; teeth on the jaws and pharynx. 

 Sp. 176. R. majL'imus. Turbot. Form rhomboido-circular, 

 nearly as broad as long ; no depression before or behind 

 the eyes ; lateral line arched above the pectoral, after- 

 wards straight ; surface smooth, but studded with nu- 

 merous acuminated tubercles ; extremity of the caudal 



