17. PLEXmONECTE8. 461 



Pleuronectes roseus, Shaw, Nat. Misc. vii. pi. 238, and Zool. iv. pi. 43. 

 Platessa flesus, vax. marmorata, Nordm. in Demid. Voy. Russ. Mirid. 

 Pise. pi. 28. fig. 1 (in text Platessa luscus, var.). 



D. 60-62. A. 39-45. Vert. ^^. 



The height of the body is contained twice and two-thirds in the 

 total length (without caudal), the length of the head thrice and one- 

 third. The greatest depth between the anal fin and the straight 

 portion of the lateral Une is less than the length of the head. Scales 

 minute, smooth, except those round the origin and along the anterior 

 part, or sometimes along the whole of the lateral line ; there are also 

 bands of rough scales or of tubercles on the side of the head ; cheek 

 with rudimentary scales, interorbital space naked ; an obtuse bony 

 ridge from the upper eye to the lateral line. A series of rough tu- 

 bercles along the base of the dorsal and anal fins. The lateral Kne 

 is very slightly curved above the pectoral fin. Snout as long as the 

 eye, the diameter of which is one-sixth of the length of the head. 

 Lower jaw prominent, maxillary rather longer than the eye. Upper 

 jaw with two series of small obtuse teeth ; those of the outer series 

 are about fifteen in number on the blind side. Eyes separated by a 

 very narrow smooth ridge, their anterior margins being nearly on 

 the same level. The dorsal commences before the middle of the eye ; 

 its distance from the caudal is more than the depth of the free por- 

 tion of the tail. The length of the pectoral is one-half of that of 

 the head. The dorsal rays about the thirty-seventh are the longest, 

 nearly half as long as the head. Gill-rakers lanceolate, rather 

 widely set, not quite half as long as the eye. Brownish or brown- 

 ish-yellow, irregularly marbled. 



From the coasts of France along all the coasts of northern Europe. 

 Iceland. 



a-h. Half-grown. Bahuslan. Presented by Hr. A. W. Malm. 



c. Half-grown: skin. Frith of Forth. From Dr. Parnell's Col- 



lection. 



d. Two adult specimens : stuffed. Frith of Forth. From Dr. Par- 



nell's Collection. 



e. Fine specimen, the blind, side black-spotted. London market. 



Presented by Dr, A. Giinther. 

 f-l. Adult, half-grown, and young : skins. Plymouth. From Mr. 



Yarrell's Collection, 

 m. Fine young specimen. Wales. Presented by Mrs. J. E, 



Gray, 

 n. Half-grown: stuffed. Cornwall. 

 0, p, q, r. Adult and half-grown. 

 s-^ui. Adult, half-grown, and young : stuffed and skins, 

 x-z. Half-grown : skeletons. British. 

 a. Skull of an adult male, German Ocean. From Dr. A. Giinther's 



Collection. 



The skeleton is very similar to that of PI. platessa. The length of 

 the first hsemal spine equals that of the nine anterior vertebrae. 



2g2 



