176 FLATFISHES (HETEROSOMATA) 



j;rey, with darker markings on the body, particularly towards the cdHcs ; liead, body 

 and tins covered with small black dots. 



Type. — Not traced. 



OisTRiBL'TiON. — Mediterranean ; Black Sea (?). 



.Mthough no adult specimens have been recognised since the time of Bonaparte. 

 Kyle has given good reasons for regarding this as a species distinct from that identified 

 ,is grohmanni by most other authors (i.e. thori). There seems to be no ailequate reason 

 for assuming that the number of dorsal and anal fin-rays given in Bonaparte's descrip- 

 tion is incorrect, and the larval forms a.scribed by Kyle to this species may be readily 

 distinguished from those of A. thon or of any other European species. It is possible, 

 however, that some of the lar\'^ described bv Kyle [e.^. those from the Black Sea) 

 may have belonged to A. kesslen. 



2. ARNOGLOSSIS KESSLERI, Schmidt. 

 .4r)iui;(os,wis kcssUri. Sihmidt, 1015, .Ann. .Mag. X.it. Hist., (S) .\vi, p. 108. 



Depth of body about 2j in the length, length of head 35 to 3J. Snout about as 

 long as eye, diameter of which is 4! in length of head ; eyes separated by a bony ridge, 

 the lower in advance of upper. Maxillary extending to below anterior edge of eye, 

 length 3 in that of head ; lower jaw a little more than twice in head. Teeth all minute, 

 not enlarged anteriorly. 7 or 8 gill-rakers on lower part of anterior arch. Scales 

 feeblv ctenoid ; 38 to 40 in lateral line. Dorsal 74-76 ; tips of first two rays free 

 from membrane, but none of the rays prolonged. Anal 53-57. Pectoral of ocular 

 side with 10 rays, length about | that of head. Caudal rounded (?). Vertebra- 

 10 ■ 23. Brownish, with or without dark spots or black dots. 



Type. — Zoological Museum, Leningrad. No. 18861-2. 



Distribution. — Black Sea. 



Specimens Ex.\mineu : 



According to Schmidt, specimc 

 largest example describeil was ')'> m 



Popo\" 

 Berg. 



full-grown and ripe ' 



