WOTTON : LAND AND FRESHWATER SHELLS OF CARDIFF. 53 



P. aibus. — Taff and Feeder. Rare. 



P. spirorbis.— Leckwith, East Moors, &c. Common. 



P. vortex. — More plentiful than P. spi/orbis. Large specimens 



occur on the moors, where I took a very peculiar distor- 

 tion alive last December. 

 P. carinatus. — East Moors. Rare and local; the only habitat 



I know of. 

 P. compianatus. — Generally distributed, but not common. 

 Physa hypnorum. — Widely distributed. Common. 

 P. fontinaiis. — Less plentiful than F. hypnorum. Generally 



distributed, 

 Limnsea peregra. — Common and general. I have taken a 



specimen of this with a single greenish band running 



round the periphery. 

 L. peregra var. labiosa. — East Moors. 

 L. peregra var. acuminata. — Various localities. 

 L. peregra var. ovata. — Penylan. 

 L. peregra var. lutea (?). — Roath Brook. 

 L. auricularia. — Cadoxton Moors. Not very common. 

 L. palustris. — East Moors, &c. Moderately common. 

 L. palustris var. conica. — East Moors. 

 L. palustris var. elongata. — East Moors. 

 Ancylus fluviatilis. — Feeder, &c. Common. 

 A. fluviatilis var. albida. — -I took specimens of this in 1883, 



but unfortunately I have forgotten where, and have not 



seen them since. 

 A. lacustris.— Pond at Llanrummey, River Taff and Feeder. 



Rare. 

 Arion ater.— Common. 



A. ater var. nigrescens. — St. Fagan's, Llandaff, &c. 

 A. hortensis. — Fairly distributed. 

 A. hortehsis var. sub-fusca. — St. Fagan's. 

 Limax marginatus. — Llandaff. Moderately common. 

 L^ agrestis. — Common and general. 

 L. agrestis var. tristis. — St. Fagan's. Not common. 



