igti. Kennakd & Woodward. — Nou Marine Moihisca, 47 

 Lough Adeery, East Donegal. 



Pisidium iiitiduin, Jcnyns. 



Lough Shivnagh, East Donegal. 



]J)iiiura l^aliistris (IMiilL). 

 Bitliyiiia tcntaculata (Liiin.). 

 PisiJiuin piilchclluni, Jt'ux'us. 



Pisidium ohtusale (Laiiik.). 

 pusillum (GmeL) Jcnyns. 

 Steenbuchii (Moll). 



Lough Derg, East Donegal. 



Limncea preBtcnuis, Bowill. 



palusiris (Miill). 

 Ancylus fliiviatilis (Mi'ill.). 



Pisidium pusillum. (Gincl.) Jenyns. 

 Steenbuchii (Moll.). 



Lough Vearty, Fermanagh and East Donegal. 

 This is a sliallow lake, its depth, perhaps, not exceeding 



12 feet. 



Ancylus fJuviatilis (Miill.). 

 Limiiaa prcetenuis, Bowcll. 



palustris (Miill.). 

 Planorbis albus, Miill. 

 Physa fonfinnlis (Linn.). 

 Valvnta piscinalis (Miill.). 



Bithynia tcntaculata (Linn.). 

 SphcBvium corucum (Linn.). 

 Pisidium subtvmicatum. Malm. 



nitidum, Jtilyiis. 



Steenbuchii (Moll.). 



ohtusale (Lamk.). 



Lough Roshin, East Donegal. 



This is situate about 3;^ miles north of Belleek. It is 

 deep in parts ; quite near the shore it is 12 feet, and in 

 the centre 40 to 50 feet. 



Succiiiea elei^ans, Risso. 

 Bithynia tcntaculata (Linn.). 

 Sphcei-ium cornenm (Linn.). 



Pisidium subtiuncatum, INIalni. 

 pulchclliim Jcnyns. 



The first-named species was obtained in the dredge. 

 \\\ this lake Major Trevelyan obtained a large number of 

 dead shells from one spot at a depth of 10-12 feet. The 

 species present were : — 



Limncsa percL^er (Miill.). 



staqnalis (Linn.). 

 Planorbis carinatus, Miill. 



albus, Miill. 



Bithynia tcntaculata (Linn.) 

 Valvala piscinalis (Miill.). 

 Sphc/Ji'ium oorncuni (Linn.). 



