Osmerus. gangetic fishes. 209 



fins ; and, behind each point, are five tubercles, disposed in a 

 row below the lateral line, which is straight and tuberculated. 

 The vent is before the middle. 



The foremost dorsal fin contains seven rays, of which the 

 first is hard at the lower part, and indented behind, but soft 

 and undivided at the point ; the others are branched. The se- 

 cond fin has only one short prickle, with a short membrane 

 behind. The pectoral fins are low, sharp above, and shorter 

 than the head. Each has twelve rays, of which the first is a 

 very strong prickle, indented on both edges ; the others are 

 branched. The ventral fins are still smaller, each containing 

 seven rays. The fin behind the vent has six rays. The fin of 

 the tail, ending in a. crescent, has ten rays, of which the upper- 

 most is in form of a whip or rod, and is longer than the whole 

 body and head. The specific name has been derived from 

 this singularity. 



X. Genus. — Osmerus. 

 Fishes of the fifth order, with scales on part at least of the 

 body ; with no rays in the hinder of the two fins of the back, 

 nor tendrils round the mouth ; and with strong teeth in the 

 jaws. 



1st Species. — Osmerus? nehereus. 



An Osmerus ? with twelve rays in the foremost fin on the 

 back; with fifteen in that behind the vent; and with the fin 

 of the tail divided into three lobes. 



Wana motta, Kussell's Indian Fishes, Vol. II. No. 181. 



This fish has a considerable affinity to the Salmo foetens of 

 Linnasus and Bonnaterre, (Tabl. Encyclop. page 165, PI. LXX. 

 fig. 285,) which is the Osmerus albidus of La Cepede, (Hist, des 

 Poissons, Tome V. page 229 ;) but that animal has scales all 



Dd 



