915 



FmhUJ^s.—Mo/Zusca of South Gahvay. 



147 



associated with Acanthimila lamellata, A. aculeata, Hyalinia pura, and 

 Pupa aiiglica. 



Balea perversa L. — This species, though of wide distribution, is scarce in 

 South Galway. It occurs on walls and trees at Portumna, Loughrea, 

 Ballinasloe, Lough Cutra, Dalystown, and Dunsandle. 



Clausilia bidentata Strom. — Common on rocks, walls, and trees throughout 

 the division, varying only in size. 



Succinea putris L. — Rare and local. Fairly plentiful by the River Suck 

 near Ballinasloe ; on the bank of the river near Gort ; in wet fields 

 and in a wood at Dalystown ; and sparingly in flood debris at Kil- 

 colgan. Rather small and pale in colour in all stations. 



S. Pfeifferi Rossmassler. — Widely distributed in marshes and on the 

 margins of rivers and lakes. The small obese shell ( = S. parvula 

 Pascal) is the usual form seen. The form with long spire and small 

 aperture, var. contortula, occurs in brackish marshes at Kilcolgan 

 on the shores of Lough Rea, L. Derg, and L. Brick, and by the canal 

 at Ballinasloe. This variety is considered by ^Ir. A. S. Kennard to 

 be the 5. schmnacheri Andreae. The Lough Rea shells are deeply 

 sutured and highly coloured. White specimens, var. alhida, were 

 taken by Lough Derg near Portumna, near Ballinasloe and at Kil- 

 colgan. 



Carychium minimum ^^.liill. — Common in woods, marshes, and all damp 

 places. 



Phytia myosotis Drap. — By the shores of Galway Bay at Aughinish, 

 Kinvarra, and Oranm.ore. Var. ringens in each locality with the 

 type. 



Ovatella bidentata Montagu. — Very rare ; seen only near Oranmore. 



Ancylus fluvlatilis Mi'ill. — Common throughout in lakes and streams. 

 Var. albida in Lough Rea. 



Acroloxus lacustris L. — Rare and local. On plants in the River Suck 

 near Ballinasloe ; in the river at Gort, and in Lough Rea. 



Limnaea auricularia L. — Rare. In the Shannon at Portumna Bridge. 

 Plentiful in Lough Brick near Loughrea. In the canal at Ballinasloe. 

 Var. acuta Jeffreys is the only form found in these localities, extreme 

 forms of this variety were found at Ballinasloe. 



L. pereger Miill. — Common in all waters throughout the district, varying 

 greatly in size and form. The prevailing form is var. ovata, some 

 specimens of which are fairly large. An interesting form of the 

 var. lacustris Leach is abundant in Lough Rea, the shells are large 

 and glossy, and more than half of them are pure white (var. Candida). 

 This seems to be a deep-water form, large quantities of the empty 

 shells with occasionally a few containing the living animal, being 

 cast up on the shores of the lake during storms. Other forms of var. 

 lacustris occur in Lough Derg, Lough Atorick, and the Woodford 

 river. Var. Boissyi near the sea at Kilcolgan. 



L. stagnalis L. — A widely-distributed species. Common in all the larger 

 lakes — L. Derg, L. Rea, L. Cutra, L. TuUaghnafrankagh, and L. 

 Cool. Also in the Shannon and its tributaries, and in small rivers 

 at Kilmacduagh and Oranmore. A pretty form, the var. fossarina 



