EELS OF THE GENUS CONGER KANAZAWA 



249 



jaw 24 to 58; 2 rows of teeth laterally in jaws; inner row from one- 

 quarter to whole length of outer row; premaxillary tooth-patch wider 

 tlian long; upper edge of gill opening opposite middle of pectoral fin 

 base ; ossification not developed over sensory canal of preorbital bone. 

 Additional counts and proportional measurements are recorded in 

 tables 1-3, 5, 6 and in figure 2. 



Geographical range: Norway southward to Cape Blanco, Africa, 

 and the Canary Islands, throughout the Alediterranean Sea, and 

 occurring in the western half of the Black Sea. K3de and Ehren- 

 baum (in Duncker, et al, 1929, p. f.62) state that this species is found 

 as far north a^s Trondhiem Fjord, Norwa}^ is seldom found in the 

 Baltic Sea in the Kattegat and in the Skaggerak, and is found mainly 

 south and west of the British Isles, in the Biscay ne west of Spain, 

 and in the Mediterranean Sea. 



Remarks: There may be some population divergence in the Atlan- 

 tic and Mediterranean forms in regards to snout and head length; 

 however, more specimens are needed to reach definite conclusions. 

 The following tabulations show the comparative snout and head 

 lengths (in thousandth of total length) of the Mediterranean and 

 Atlantic forms: 



Area 



Snout length in thousandths of total length 



This species is related to C. orbignyanus from the Atlantic coast of 

 South America; however, in C. orbignyanus the diameter of eye is 

 smaller, pectoral rays fewer, and origin of dorsal fin more posterior 

 in position. See remarks under C. orbignyanus. 



Gunther (1870, p. 39) records under the species Conger vulgaris a 

 specimen from St. Helena, but this specimen is identified tentatively 

 as C. esculentus. 



