FISHES. 133 



247. Petromyzon branchialis L. Pride. Sandpiper. 

 Small Lamprey. 



Freshwater resident, common in various localities. Probably 

 more generally distributed, but much overlooked, being 

 often confounded with the Lampern. 



Fam. MYXINID^E. 



248. Myxine glutinosa L. Glutinous Hag. Borer. 



Resident, abundant off the whole coast from Redcar to 

 Flamborough. 



Sub-class 4. LEPTOCARDIL 



Fam. CIRROSTOMI. 



249. Branchiostoma lanceolata (Pa!/.). Lancelet. 

 Redcar (Yarrell, ed. iii., 1859, vol. L, p. 4). 



