60 LECTURE VIII. 



of Gymnetrus, distinguished by its very long, 

 compressed body, numerous, small, slender teeth, 

 and very long, slender ventral fins or processes. 

 One of the most remarkable species is that which 

 has been named the Russelian Gymnetrus, from 

 the late Dr. Patrick Russel : it was of a silvery 

 colour, and is represented on the plate we are 

 now viewing in its natural size, and was proba- 

 bly a young specimen from its want of visible 



teeth. The same animal in its complete or ad~ 







vanced state appears from the description of Pro- 

 fessor Ascanius and others to measure not less 

 than ten feet in length, with a strongly marked 

 lateral line, and a few rows of dusky spots across 

 the body. It is a native of the Northern and 

 Indian seas, and is popularly called the King pf 

 the Herrings. 



Another species is the Hawkenian Gymnetrus, 

 or Blochian Gymnetrus; in its general appear* 

 ance much allied to the former, but differing in 

 colour, having the fins of a bright red, and the 

 body clouded with blueish bands. A specimen 

 measuring six feet in length and about ten inches 

 in breadth, was taken on the coast of Cornwall. 



