SIO Proceedings of' the Wtmerian Society. 



New species of Platessa. — This fish seems much rarer than 

 the last, as Mr Parnell has not had an opportunity of observing 

 more than two specimens. It agrees witii the genus Platessa, in 

 having the mouth entire, with a row of obtuse cutting teeth 

 round each jaw, tail rounded at the end, and the eyes placed on 

 the right side. It differs from the Platessa vulgaris, in having 

 no tubercles on tlie head ; from the Platessa flesus, in not having 

 a band of small spines on the side line ; from the Platessa li- 

 manda, in not having the scales ciliated at their margin. It 

 approaches nearer to the Platessa microcephalus, (as a variety 

 of which it was regarded by Dr Neill) ; but it differs from it 

 in having the lateral line nearly straight, the lower jaw longer 

 than the upper, and the scales large. In shape it resembles 

 the s:)le. Length sixteen inches and a half, breadth e'ght and 

 a half, and one inch thick ; lateral line arched one-eighth of 

 an inch over the pectoral fin ; eyes large, situated on the right 

 side, irides silvery; mouth small, under jaw the longest, teeth 

 small, closely set together ; pectoral fin with eleven rays, ven- 

 tral fins with six rays, anal fin with ninety-three rays ; dorsal 

 fin consists of 109 rays, the first ray commencing over the eye, 

 and running within half an inch of the tail ; the caudal fin 

 rounded at the end, furnished with twenty-three rays. Scales 

 large, very deciduous; the whole fish is of a yellowish-brown co- 

 lour. It is known to the fishermen under the appellation of 

 Craig Fluke, but they appear to confound it with the last, in 

 consequence of some similarity. 



Pleuronectes I'imandanus. — This fish is by no means rare 

 in the Frith of Forth ; it is known to most of the fishermen by 

 the name of Sandnecker, or long fluke. Bloch has noticed it, 

 under the name of Pleuronectes limandanus, as inhabiting the 

 northern seas, but it has not as yet found its way into the works 

 on British Ichthyology. Length ten inches, breadth four and a 

 half, and much resembling the halibut in shape; lateral line 

 nearly straight; mouth large, each jaw is furnished with a row 

 of obtuse irregular sharp-pointed teeth, set a little apart from 

 each other ; pectoral fin consists of eight rays, anal fin of sixty 

 rays ; dorsal fin of eighty-five rays ; the tail forms an angle, when 

 expanded ; it is furnished with sixteen rays ; scales large, ciliated 

 at their free extremity, which renders the fish rough to the 

 touch ; the whole fish is of a brown colour. They are taken with 

 the hook in the sandy parts of the Frith of Forth, mostly on the 



