192 



Guide to Belfast. 



Arion circumscriptus, Johmt. 



Limax maximus, Z. 



L. marginatus, Mull. 



Agriolimax agrestis, Z. 



Helix rotundata, Mull. 



H. hispicla, Z. 



H. nemoralis, Mull. 



Helix aspersa, Mull. 

 Cochlicopa lubrica, Mull. 

 Pupa cylindracea, Da C. 

 Clausilia bidentata, Strom. 

 Succinea putris, Z. 

 Carychium minimum, Mull. 



The above are generally distributed in both counties, and 

 they are mostly abundant where they occur. Helix imnoralis 

 and H. aspersa are more plentiful along the coast than 

 inland. This is especially the case on the dunes near Port- 

 rush, Ballycastle, and Newcastle. 



The following 27 species are more local and usually less 

 plentiful ; a few however, especially the Helices and some 

 Vertigos which inhabit the dunes, are found in very large 

 numbers ; the latter sometimes collected in " pockets," as 

 described by R. Standen in Irish Naturalist, vol. vi, p. 8. 

 V. edentula on sea banks near Ballycastle, and V. antivertigo 

 in many marshes, are very plentiful some years in late 

 summer. Species marked with an asterisk (*) are strictly 

 confined to the coast, mainly the dunes, though the Helices 

 are, in central Ireland, found right across the Limestone 

 Plain. 



Hyalinia pura. Alder. 



H. radiatula. Alder. 



H. fulva, Mull. 



H. nitida. Mull. 



Arion intermedius, Normand. 



Agriolimax l^vis. Mull. 



Amalia Sowerbyi, Fer. 



A. gagates, Drap. 



Helix pygmffia, Drap. 

 *H. pulchella, Mull. 



H. aculeata. Mull. 



H. fusca, Mont. 



H. arbustorum, Z. 

 *H. virgata. Da C. 



*Helix intersecta, Foir. 

 *H. ericetorum. Mull. 

 *H. acuta. Mull. 



Pupa anglica, Fer. 

 *P. muscorum. Mull. 



Vertigo edentula, Drap. 



V. pygmrea, Drap. 



V. substriata, yi?^. 



V. antivertigo, Drap. 

 *V. angustior, y^^)^. 



Balea perversa, Z. 



Succinea elegans, Risso. 



Acme lineata, Drap. 



