108 PRIDE LAMPREY. Class IV. 



They are frequent in the rivers near Oxford, 

 particularly the Isis, but are not peculiar to that 

 county, being found in other of the English 

 rivers, where, instead of concealing themselves 

 under the stones, they lodge in the mud, and 

 never are observed to adhere to any thing like 

 other lampreys. 

 Descrip- The body is marked with numbers of trans- 

 verse lines, that pass across the sides from the 

 back to the bottom of the belly, which is divided 

 from the mouth to the anus by a straight line. 

 The back fin is not angular like that of the 

 former, but of an equal breadth. The tail is 

 lanceolated, and sharp at the end. 



TION. 



