16 E. LÖNNBERG, THE ICHTHYOLOGY OF THE CASPIAN SE A. 



a persistent characteristic distinguishing a separate race or 

 subspecies. It seems, however, as if 55 should be the normal 

 number of scales in the lateral line of this form, for on the 

 other side on which 59 could be counted the lateral line was 

 broken and curved in some places by which the number of per- 

 forated scales becomes larger than normal. If the future shows, 

 as I believe it wil], that there is a constant Caspian race or 

 subspecies which may be characterized by this lower number 

 of scales in the lateral line, and thus distingnished in the 

 same way as the Caspian form of Leucahraniis, I propose to 

 call this race or subspecies caspiiis. — In the volume quoted, 

 above, »Museum Caucasicum» edited by Rådde I iind the name 

 »Leuciscus Frisii Nordm. var. Kntum Kam.» (1. c. p. 317). As 

 far as I ha ve been able to find out Kamensky has not pub- 

 lished any description of this »var. Kntum>-> and in consequence 

 of this I do not know what he means with this »nomen nu- 

 dum» and cannot possibly use it under such circumstances. 



At Petrovsk, and along the west coast down as far as 

 to Persia »kutum» is caught in great numbers; »some millions» 

 was the annual catch in the Persian water I was told. In 

 Transcaucasia it is said to enter chiefly Kumbaschinka river. 



Scardinius erythrophthalamus (Lin.). 



The relative measurements of a specimen from the Volga 

 delta are as follows: 



Total length in mm 206 



Greatest height of body in fi of tot. length 32,7 



Least > » caudal peduncle » » » » » 9,8 



Length of head » 5. » » » 22,5 



Distance between snout and ventral fins » » » » » 45,3 



» » » » dorsal fin »»»» » 63,3 



» » » » anal » »»»» » 66,0 



Length of base of dorsal » »»»» » 13,1 



Height » » » y » » » » 17,7 



Length » base of anal » » » 2. » » 13,1 



Height > » »»j»j » 15,0 



Prteabdominal length »»»» » 24,2 



Postabdominal » >»»» » 23,3 



