FISHES 



* 1 20. Lampern or Silver Lampern. Petromy- 



zon fitfvia ti/is, Linn. 



Day (Fishes of Great Britain^ ii. 360, 

 361) says they are captured in the Thames, 

 where they abound in quantities. Jenyns 

 says (British Pert, jfnimak, p. 521) they are 

 common in many of our rivers, especially in 

 the Thames. Yarrell makes the same re- 



mark. They are stated to be very common 

 in the Stour. 



*I2I. Planer's Lamprey, Mud Lamprey. 



Petromyzon branchialis, Linn. 

 According to my experience this is rare in 

 Essex. I have however observed it in the 

 Colne in two localities. 



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