50 
Museum, and the skeleton of one found dead on Lowestoft beach, 
June 19, 1867, is in the possession of Mr. Harper, Chemist, 
Xorwich. — T. E. Gunn. 
SUB-CLASS V.— CYCLOSTOMATA. 
FaM. I. — PETROMYZONTIDiE. 
Petromyzon marines (L.) Sea Lamprey. 
Norfolk Estuary. 
Mr. Lubbock says they are abundant in the Yare in April and 
May, when they run up to spawn. 
Mr. Gurney has twice seen a large lamprey caught immediately 
below the “New Mills,’ at Norwich, and one of these two 
specimens is preserved in the Norwich Museum. 
Mr. Bayfield mentions one, 28J inches long, which was caught 
in Buxton Broads, June, 1873. 
Sir T. Browne says, “ Lampreys, great and small, found plenti- 
fully in Norwich river, and even in the city, about May ; whereof 
sdme are very large, and, well cooked, are counted a dainty bit 
collared up, but especially in pies.” 
Petromyzon fluviatilis (L.) Lamprey. 
Often caught at low water, in stow-nets, opposite Lynn, 
Norwich. — Lubbock. 
Petromyzon branchialis (L.) Mud lamprey, 
Keswick, near Norwich. — J. H. G. “ Numerous in ditches 
containing small springs, to which these fish appear to be 
attracted.” 
