BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 26. APD. IV. N:0 8. 21 



Distauce between snout and ventral fins in % of total length 41,1 

 Length of ventral fins -> ^ • » v 16,4 



» » pectoral > » » > » » 17,4 



Prseabdominal length » » > » » 20,3 



Posta])dominal > »>,-►» 20,8 



Lateral line 49 



Transversal line lo 1 



The Blicca of the Volga delta is perhaps a little more 

 robust tlian the northern form, but this is not veiy conspi- 

 cuous. Oii the whole, the above written relative measure- 

 ments fall within the limits of variation recorded for the 

 Swedish »björkna» by Smitt (1. c). The head and the dorsal 

 fin are rather large in the Caspian form. 



The »taran» is common in the Volga delta and also fonnd 

 in Transcaucasia, but I did not see any specimens from the sea. 



in % of tot. length 



Abramis bräma Lin. 

 from the Volga delta. 



Total length 



Length of head 



Prseorbital length 



Postorbital => 



Diameter of eye 



Height of body 



Least height of caudal peduncle 



Distance between snout and dorsal fin 



■■ ■■■ » anal » 



» i » ventral fins 



PrBeabdominal length 

 Postabdominal » 

 Length of base of dorsal fin 

 Height 



Length of basc » anal i 

 Height > » » 



Length of pectoral fins 

 » ventral » 



Lateral line 



Transversal line 



v 1 



' With pearly excrescences. 



