4S 



The Ifish Naturalist. 



March, 



It is noteworthy that although Major Trevelyan dredged 

 in various parts of this lake, yet there are live species 

 amongst the dead shells which he failed to find alive. 



It can thus be seen how difticult it is to obtain an 

 accurate knowledge of the fauna of these small lakes. 



Lough Dkumgoon, Fermanagh. 



Uilhynia loiiaculala (l.inu.). 



Lower Lough Erne, Fermanagh. 



I.imncca peye'j.rv (Miill.)- 



stagnalis (Linn.). 

 Ancylus fluviatilis, MiiU. " Rossbcg 



Point." 

 Physa jo)iliiialis {\Jnn.). " Rossbcg 



Point," " Below Thonipson's." 



Bi thy Ilia tentaciilata (Linn.). 

 " Drtulged 3 feet," " Below 

 Thompson's," " Bleanamora 

 Bay." 



V alvata pisciiialis {^InW.). " Shore." 

 " Dredged 3 feet," " Bleana- 

 mora Bay.*' 



Planorbis vortex (Linn.). " Shore " 



(dead). "Blcanahey Bay near Paludestrina Jenkiusi, Smith, 

 Castlecakl well station " (dead). "Dredged 3 feet." 



Planorbis cariiiatus, Miill. " Ko.ss- Sphcerium cornciim (Linn.), 



beg Point." " Shore," " Blean- "Shore," "Dredged 3 feet," 



" Bleanamora Bav." 



amora Bay, " " Below Thoinp 



Pisidiiini amiiicum (Miill.). 



Besides the shells obtained by dredging Major Trevelyan 

 also sent a small number of land shells, which it is advisable 

 to place on record. 



From the Walls of Castlecaldwell, Fermanagh 



Vitrea hibernica, Kenn. 

 Pyramidula rotundata (Miill.) 

 Hygromia rufesceiis (Penn.). 



Cochlicopa lubrica (Miill.). 

 Clansilia bidentata (Strom.). 

 Jaminia cylindracca (Da Costa). 



From an Island in Lough Erne, Fermanagh. 



Vitrea mtidxila (Drap.). 



radiatiila (.\ld.). 

 Zonitoides nitidus (Miill.). 



Balca perversa (Linn.). 

 Jaminia cylindracca (Da Costa). 

 Siiccinea elegans, Risso. 



