140 The Irish Naturalist. J"ne, 



Bidiminus obscurus is to be found at the foot of a limestone 

 cliff under Ballynalacken Castle. 



P?{pa angtica is tolerabh' common in wet places between 

 Leliinch and Corofin, while P, cytindracca is to be met with 

 everywhere, and P. miiscor2un is plentiful in several places 

 along the coast, especially at Lehinch. 



Vertigo antivertigo is to be found on Bulrushes between 

 Lehinch and Ennistymon. V. pygvicsa is widely distributed, 

 and V. substiHata and V. angiistior occur in wet moss on Lehinch 

 sand-dunes. V. edenttda can generally be obtained in damp 

 woods where Lzizula sylvatica is growing. Balea perversa is 

 common on loose stone walls over the whole district, and it 

 does not seem to have any partiality for any particular rock 

 formation. Claicsitia bidentata^ Cochlieopa lubriea, Suecinea 

 putris and S. elegans, Carychiuvi mijiiimim are all common. 



Plaiiorbis fontanus was met with in a few places in the 

 vicinity of Corofin. P. nautiteiis I found near L^iscanor, Coro- 

 fin, and Muckinish. P. aibus near Feakle, Corofin, &c. 

 P. spirorbis, P- contortus, and P. umbilicatiis are widely dis- 

 tributed. P. earinatus I found in ly. Derg. 



I took Aplexa hypnorum near Feakle, Kilfenora, and Muck- 

 inish, and I discovered Amphipeplea gl^itiiiosa in March, 1901, 

 in the Scariflf canal by dredging. 



Lim7iea peregra, L. stagnalis^ L. palitstris, and L. tr^mcatula 

 are widely distributed, and so is Aneyliis flicviatilis, Velletia 

 lacustris is fairly common about Corofin. 



Hydrobia Jeiikhisi is common in the salt marshes about 

 Lehinch, and I obtained H. ventrosa in Muckinish lyough. 

 Acme lineata I only found in one place, about 3 miles S.E. 

 of Ennistymon — in w^et moss. Ne?iti7ia fluviatilis occurs in 

 Loughs Derg, Inchiquin, &c. 



Bythinia tentaculata occurs in many of the rivers and lakes, 

 as also Valvata pisci7iaiis, while V. cristata is to be found in 

 many localities on the leaves of the Water-cress (^Nasturtium 

 officinale). As regards bivalves, Anodonta cygnea occurs in 

 Loughanilloon, and Sphcerium corjie^im is common every- 

 where. I also found several species oi Pisidium^ including/*. 

 fontinale, P, pusill^tm^ and P. miliu7n^ in the neighbourhood of 

 Lehinch and other localities. 



Cloudalkin, Co. Dublin. 



