ZOOLOGY MOLLUSCS Although the physical features of Bedfordshire are such as to favour molluscan life, students of the mollusca are conspicuous by their absence, and only one paper, that by Mr. J. Saunders, Midland Naturalist (1888), xi. 152, has been published on the conchology of the area. From this and the Records of the Conchological Society, supplemented from the observations of Mr. Cox and the Rev. C. McN. Rushforth the following list has been compiled. Only 74 species out of the 139 known to exist in the British Islands have thus been actually found ; but the names of fourteen others pre- ceded by an asterisk [*] have been included in the list, because judging from the records of neighbouring counties they must certainly exist in the area. So far as our opinion can be formed from such scanty material this molluscan fauna is of the average British type. A notable inhabitant is the Roman snail [Helix pomatia), which however was living in England before the advent of the Romans. It is a very local species, and in this county is found near Luton. A. GASTROPODA I. PULMONATA Arion ater (Linn.) a. Stylommatophora - l'ortcmh,Yh. — ctrcumscriptuSy John. Limax maximus, Linn. * — subfuscus (Drap.) — JIavus, Linn. Punctum pygnueum (Drap.) Bromham ; Agriolimax agrestis (Linn.) Woburn
- — Itevh (Mull.). Pyramidula rotundata (Mall.)
- Amala soiverbii (F6r.) Helicella virgata (Da C.)
- — gagates (Drap.) — itala (Linn.)
Vitrina pellucida (Mull.) — caperata (Mont.) Vitrea crystallina (Mull.) — cantiana (Mont.) — alliaria (Miller). Woburn Sands ; *Hygromia fusca (Mont.) Ampthill — granulata (Aid.) — glabra (Brit. Auct.) Woburn Sands ; — hhpida (Linn.) Luton ; Sharnbrook — rufiscem (Penn.) — cellaria (Mull.) Acanthinula acukata (Mull.) — nitidula (Drap.) Vallonia puhhella (Mull.) — pura (Aid.) ) AmDthill Helicigona lapicida (Linn.) — radiatula (Aid.) j v — arbmtorum (Linn.) — nitida (Mall.) Helix aspersa, Mull. — fulva (Mall.) — pomatia, Linn. Near Luton 69
