102 SEA LAMPREY. Class IV. 



GENUS VI. LAMPREY. 



Body slender, eel- shaped. 



Apertures seven on each side : one on the 



top of the head. 

 Fins pectoral or ventral, none. 



1 . Sea. La Lamproye de mer. Belon, Petromyzon marinns. P. ore 



66. intus papilloso, pinna dorsali 



Lampetra. Rondel. 3Q8. posteriori a cauda distincta. 



Lampreda. Gesner. Paralip. Gm. Lin. 1513. Faun. Suec. 



22. Pise. 5Q0. No. 2g2. 



Lamprey, or Lamprey Eel. La Lamproie. Block, ichth. iii. 



Wil. Icth. 105. 31. tab. 77. 



Lampetra. Raii Syn. pise. 35. Le Petromyzon Lamproie. De 

 Petromyzon maculosus ordini- la Cepede. Hist, des Pois-^ 



bus dentium circiter viginti. sons. i. 3. tab. 1. Jig. 1 — 5. 



Arted. sy?ion. go. 



JLiAMPREYS are found at certain seasons of 

 the year in several of our rivers, but the Severn 

 is the most noted for them.*" They are a sea 

 fish, but, like salmon, quit the salt waters, and 

 ascend rivers the latter end of the winter, or 

 beginning of spring, and after a stay of a few 

 months return again to the ocean, a very few 



* They are also found in the most considerable of the Scotch 

 and Irish rivers. 



