188 THE ZOOLOGIST. 



Limncea peregra, Miill. — 0. 



L. stagnalis, Linn. — C. 



L. palustris, Miill. — C. 



Land Shells. 



Arion ater, Linn. — C. 



Limax agrestis, Linn. — C. 



L. maximus, Linn. — C. 



Succinea elegans, Risso. — 0. 



Zonites cellarius, Miill. — F. Mr. Beckett gives localities, Tower 

 Road and Burgh Castle. 



Z. nitidulus, Drap. — " Caister and Bradwell " (B.). 



Helix aspersa, Miill. Common Snail. — Most abundant. 



H. nemoralis, Linn., H. hortensis, Penn. — Abundant, but extremely 

 local in their habitats. After a heavy dew, or on a very damp morning 

 even after sunrise, the herbage on Breydon walls, within easy reach 

 of the salt spray, is found covered with varieties of Helix. The 

 furze on the North Denes used also to abound with the species, and 

 after a bush has been burnt many shells with fire-dried bodies inside 

 are exposed to view, sometimes with a dead Lizard or two amongst 

 them. Mr. Beckett enumerates seven varieties. Careful search would 

 undoubtedly add many more to the list. 



Pupa umbilicata, Drap. — F. Mr. Beckett refers to examples 

 brought him from the neighbourhood of the River Bure. 



Clausilia rugosa, Drap. — 0. 



