2 LIVEEPOOL BIOLOGICAL SOCIETY. 



GASTROPODA. 



PULMONATA. 



Family: Limacid^. 



Limax agrestis, Miill. 



Very common, especially after rain. No other slugs 

 have been observed. 



Family: Helicid^. 



Vitrina pellucida, Miill. 



Only a few specimens found. 



Zonites cellar ins, Miill. 



Fairly common, some good ones. No other Zonites 

 found on the island, but another species, Z. alliarius, 

 Mill., was obtained on the Great Orme's Head, when one 

 specimen only was found. 



Helix aspersa, Miill. 



It is a strange fact that this common shell should only 

 be represented by dead specimens, not even a single living 

 one having been found on the island. The quantity of 

 dead ones is very large, show^ing that the species must 

 have been very common formerly. Most were found at 

 the mouths of the rabbit holes. Both on Anglesey and 

 the Great Orme's Head living specimens are found. 



Helix 7ie?noralis, L. 



By far the most common land shell on the island, and 

 some are very good examples. The Conchological Society 

 of Great Britain and Ireland are now making each 

 differently banded shell a distinct variety, which is to my 

 mind a great mistake. The number of bands and colouring 

 of this shell is certainly too slender ground to go upon in 

 forming named varieties. Some shells have only one band 



