2-1:1 THE FRESII-WATEH ITSIIES OF EUROPE. 



Siebold found an additional tootli in a second series. The teeth most resemble 

 those of A. viinha. 



The colour is silvery, thoug-h the upper part of the head and back is 

 g"reenisli. All the fins are white, and only the dorsal and caudal are spotted with 

 black; the iris is yellow. This fish is found in Transylvania and in Austria, 

 especially in the Danube. In Bavaria the length varies from seven to twelve 

 inches. It occurs in tributaries of the middle Rhine, and M. Selys- 

 Long-champs mentions it in the Somme and Moselle. Yarrell quotes it as a 

 British fish from Belfast, and from Essex and Middlesex. It is well known in 

 the Haffs on the Prussian coast, and is found singly in all Russian rivers. 



Although Von Siebold regarded this fish as a bastard, he, nevertheless, 

 formed a new sub-genus to receive it, which was named AbramldopHis. He 



Fiii'. 123. — AliltAMIS LF.rCKAKTII, HYllKII) HKTWEEN I.ErtlSCfS lUTILUS A: 



AltKAMIS JiKAM.' 



was influenced in this eccentricity (1), by the form and arrangement of the 

 pharyngeal bones and teeth, about half the individuals examined having six 

 teeth on one side and five on the other ; (2), by the short anal fin ; (3), by the 

 low dorsal fin ; (4), by the less compressed body ; and (5) by the scales being 

 angidarly bent, so as to cover the compressed abdominal <i<X^(^ behind the 

 ventrals. In the lateral line there are forty-eight to fifty scales, with live 

 lono-itudinal series of scales between the lateral line and ventral fin. 



Blicca. 



The White Breams were separated by Ileckel as a distinct sub-genus on 

 account of the presence of two rows of prehensile teeth upon the ])harvngeal 



