ef Great Britain. 106 



MOLLUSCA, Cuv. 



1*/ Section. MOLLUSCA CEPHALA, Fer. 



Class. GASTEROPODA, Cuv. 



Order. P.ulmonifera, Flem. (Les Pulmones, Cuv.) 



-j- Terrestrial. 



Fam. LiMACiDiE, Flem. (Les Limaces, Cuv.) 



Gen. 1. Arion, Ferussac. 



1. Ernpiricorum, Fer. 

 Limax ater, Linn. 

 L. SubrufuS;, Linn. 



2, Horiensis, Fer. 



var. 3' Pfeitfer. Griseus, unicolor, fascia utrinque nigra. 

 Limax fasciatus, Nilsson. 



Arion circumscriptus, Johnston, Edinb. New Phil. Journ. 

 I follow the opinion of M. de Ferussac in making L. fasciatus, 

 Nils, a variety of A. hortensis, Fer. The variety only, if such it be, 

 has yet been noticed in this country, and is common in gardens, 

 woods, &c. 



Gen. 2. Limax, Linnaeus, Ferussac. 



1. Cinereus, Linn. — Shell : Limacellus Parma, Turt. 



2. Variegatus, Fer — Shell : Limacellus variegatus, Turt. 

 Not uncommon in cellars. 



3. Agreslis, Linn Shell : Limacellus obliquus, Turt. 



4. Carivatvs, Leach. — Shell : Limacellus ungulatus, Turt. 



5. Sopjerbii, Fer. 



Gen. 3. Testacellus, Cuvier. 

 1. Haliotoideus, Drap. 



var. T. scutellum, Sowerby. 

 In addition to the localities in the neighbourhood of London, Dr 

 Turton informs us that this species is found in gardens at Ply- 

 mouth and Bideford. There is good reason, therefore, to suppose that 

 it is a native species. The case is different with T. Maugii, which 

 belongs to a warm climate, and has evidently been introduced along 

 with exotic plants into the nursery where it is now found. 



Fam. Helicid^, Jeff. (Les Escargots, Cuv.) 

 Gen. 4. Vitrina, Draparnaud. 

 1. Pellucida, Mull. Flem. 

 V. Mulleri, Jeff. 



Var I. V. Draparnaldi, Jeff. 

 2. V. Diaphana, Jeff, 

 i Mr Jeffreys having kindly favoured me with specimens of his V. 



