PISCES. 129 



Rhombus Cuv. Teeth minute, acute, in several rows. Dorsal 

 fin commencing in head in front of eyes. 



Sp. Pleuronectis maximus L., Bloch Iclith. Tab. 49 ; the turhot ; the eyes on 

 the left side, which is coloured brown and beset with small tubercles. In 

 some species the eyes, which are very large, are far asunder, as in Pleuro- 

 tiectes rhoniboides Bonap., Pleuronectes mancus Risso, Bonap. Faun. Ital. 

 III. Tab. 99, fig. I, from the Mediter. Sea, and Rhombus myriaster Schleg, 

 Faun, Japoii., Tab. 92, fig. 2, from Japan. 



Platessa Cuv, Teeth in a single row, obtuse or subacute. Dorsal 

 fin beginning over the upper eye. Interstice of eyes small. (Eyes 

 mostly on the right side.) 



Sp. Pleuronectes Platessa L., Bloch IcJith. Tab. 42 ; the plaise or plaice ; the 

 brown-coloured right side with orange or red spots ; between the eyes 

 a stripe of six or seven tubercles ; — Pleuronectes Limanda L., Bloch Ichth. 

 Tab. 46, the dab, &c. 



Hippoglossus Cuv. Teeth strong, acute, incurved, the anterior 

 very large, arranged in multiple row. Interstice of eyes depressed, 

 broad, with upper eye often placed almost at the ridge of back. 

 (Body somewhat narrow, elongate.) 



Sp. Pleuronectes Hippoglossus Ti., Bloch, Tab. 47; \heJioVibut, &c. 



Solea QuENSEL, SuNDEV. Jaws -concealed under the scaly- 

 skin, the upper rotund, the lower shorter. Mouth incurved. 

 Teeth on lower side alone, tliin, cylindrical, minute, in several 

 rows. Branchial aperture below pectoral fins. Eyes small ; lower 

 eye placed behind the other, almost at the angle of mouth. Nostrils 

 placed on both sides behind the maxillary margin. (Body oblong, 

 narrowed towards tail ; with caudal fin often confluent with dorsal 

 and anal.) 



Sp. Solea vulgaris Gottsche, Kroeyer, Pleuronectes Solea L., Bloch Ichth., 

 Tab. 45, Skandinaviens Fiskar, Tab. 39; the sole; sometimes only six 

 rays in the gill-membrane ; eyes on the right side. 



Add genera Monochirtis Cuv. (with pectoral fin on lower side 

 none) and Achirus Lac. (with pectoral fins none). 



Order X. Acantho^terygn. 



Branchiae pectinate, with narrow laciniae. Supramaxillary bones 

 not connate with intermaxillary. Rays supporting the anterior 

 part of dorsal and anal fins inarticulate, mostly hard, strong, acumi- 

 nate at the apex. 



VOL. II. 9 



