1-52 PLEFRONECTID.E. 



17. Pleuronectes luscus. 



I Uuronectes luscus, Pall. Zoogr. Ross.- As. iii. p. 427 ; Rathke, Fauna 

 iter Kn/m, p. 847 ; Nordm. in Demid. Voy. Ittiss. Merid. iii. p. 532, 

 Pise. tab. 27. 



Platessa glabra, Rathke, I. c. p. 352. 



luscus, Kessler in Bull. Soc. Nat. Mosc. 1859, part ii. p. 439. 



D. 53-63. A. 39-43. 



The height of the body is contained twice in the total length 

 (without caudal), the length of the head thrice and a third. The 

 greatest depth between the anal fin and the straight portion of the 

 lateral line equals the length of the head. Scales minute, smooth ; 

 series of tubercles along the base of the dorsal and anal fins, and 

 along the lateral line ; there are also bands of rough scales or of 

 tubercles on the side of the head ; interorbital space naked. A gra- 

 nulated narrow ridge runs from between the eyes to the origin of the 

 lateral line ; the latter is very slightly curved above the pectoral. 

 Lower jaw prominent, maxillary longer than the eye. The distance 

 of the dorsal from the caudal is nearly equal to the depth of the free 

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

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

 half as long as the head. Greenish, with scattered round brown 

 spots on the body and fins ; those on the body edged with white. 

 {^Nordm.) 



Black Sea. 



18. Pleuronectes italicus. 



Passer, pt., Rondel, xi. c. 7. p. 316. 



Pleuronectes ilesus, var., Delarochc, Ann. Mus. xiii. 1809, p. 357. 

 Platessr. passer, (not L.) Bona p. Faun. Ital. Pesce ; Costa, Faun. Nap. ii. 

 p. 7; Cancstr. Arch. Zool. i. p. 8. tav. 1. fig. 1. 



D. 62-64. A. 41-48. 



The height of the body is contained twice and a fourth in the total 

 length (without caudal), the length Ox" the head thrice and a fourth. 

 The greaif'st depth between the anal fin and the straight portion 

 of the lateral line is less than the length of the head. Scales minute, 

 smooth ; lateral line smooth ; interorbital space naked ; an undulated 

 osseous ridge runs from the upper eye to the lateral line, which is 

 very slightly curved anteriorly. A .series of small spines along the 

 base of the dorsal and anal fins. Snout as long as the eye ; lower 

 jaw prominent, maxillary rather longer than the eye ; teeth obtuse, 

 subconical, small, about eighteen on the blind side of the upper jaw. 

 Eyes separated by a vc-ry narrow smooth ridge. The distance of the 

 dorsal from the caudal is equal to the depth of the free portion of the 

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

 dorsal rays of the third quarter of the length of the fin ai-c the 

 longest, not half so long as the head. Greyish-brown, imifoira or 

 marbled with darker. 

 Mediterranean. 



a. Fine specimen. Dalmatia. From Dr. J. Heckel. 



