Mollusca of Great Britain. 329 



now generally adopted one of aspersa, given to it by 

 Muller. 



2. POMATIA. 



Animal superne verrucosum, pallida fuscum, subtiis gri- 



seum. Tentacula longiora. 

 Testa subrotundo-ovata, ventricosa, solidior, fasciis variis 



rufo-brunneis depicta. Anfractus 4 — 5. Apertura sub- 



rotundo-lunata : peristomio crasso, subreflexo. 

 Long. 2. — Diam, 1.5. 



Helix pomatia. Linn. Syst. Nat. 1. p. 1244. 



Not uncommon in woods of the midland and southern 

 counties of England. Many distortions of the shell occur, 

 but they may be all referred to the same principle, and 

 cannot rank as varieties, which are chiefly influenced by 

 food and situation. 



3. Arbustorum, 



Animal verrucosum, nigro-viridescens. Tentacula per- 



brevia. 

 Testa globosa, solidior, fascia unic^ fusca maculisque flavis 



insignita. Anfractus 5. Apertura subrotundo-lunata : 



peristomio reflexo, in junioribus intils submarginato. 

 Long. 0.75. — Diam. 0.65. 



Helix arbustorum. Linn. Syst. Nat. 1. p. 1245. 

 a. efasciata, pellucida. 



Not uncommon in moist woods. 



4. Nemoralis. 



Animal colore varians, plerumque viridescenti-griseum. 



Sustentaculum latum. 

 Testa rotundata, depressiuscula, solidior, nunc fasciis di- 



2 u 2 versh 



