LAND AND FRESHWATER MOLLUSCS OF ST. KILL) A 23 



HVALINIA CELLARIA, Mii//. Under stones in and at door of pre- 

 historic subterranean dwelling, "The Fairies' House." 



HYALINIA ALLIARIA, Miller. The commonest land shell. 

 Var. riridula, equally abundant. 



HYALINIA NITIDULA, Drap. Infrequent. Fairies' House, Connacher, 

 Oisaval. 



HYALINIA RADIATULA, Alder. (2). One from southern slope, 

 Connacher. Another detected later. 



HYALINIA CRYSTALLINA. Rather scarce. Ruaval, cliff side of 

 Connacher. 



HELIX ROTUNDATA, Miill. Common on rock debris, showing a 

 tendency to the var. pyramidalis. 



PUPA CYLINDRACEA. Da Costa. Singly and in small colonies every- 

 where, all the edentulous form and probably the same as the 

 Pupa sempronii of Switzerland. 



PUPA ANGLICA, Fi-r. (2). On talus of Connacher; ibid. Mullach 

 Mhor. 



VERTIGO SUBSTRIATA. (6). A small colony under stones in sheep 

 pen near foot of Mullach Sgail. 



VERTIGO EDENTULA, Drap. (2). Adult and immature, loose stones 

 southern slope, Mullach Mhor. 



BALEA PERVERSA, L. (i). In company with Vertigo substriata. 



COCHLICOPA LUBRICA, Miill. (4). In company with V. substriata, 

 Oisaval. 



Var. /ubricoides, near village. 



PisiDiUiM PUSILLUM, duel. Very abundant in marshy ground at the 

 foot of Avon Mhor, referable to var. obtusale though not strictly 

 characteristic. 



No collection was made of the marine shells, but the 

 following Note may prove of interest. Near the top of the 

 cliff at the passage opposite Dun (Ruaval), at a point at 

 least 400 feet above sea level, it was surprising to find a large 

 colony of one of our common shore species (Littorina littorea, 

 L.) distributed in crannies of the rock. The only food 

 present was a yellow lichen which clothes the cliff faces 

 abundantly, and the height above the sea precluded the idea 

 of an ascent between tides. All the specimens examined 

 were immature, and the shell when handled showed a 

 tendency to crumble round the mouth. Mr. Fraser had 



