336 THE SCOTTISH NATURALIST 



Miill., ^ort Patrick; Hygromia rufescens, Auctt., Stranraer; 

 H. hispida (L.), Port Patrick; Helicella capcrata (Mont.), Port 

 Patrick; Acanthinula aculeata (Miill.), Uunskey Wood; Cochlicopa 

 lubrica (Miill), Stranraer; Carychium miiiimiini Miill., Dunskey 

 Wood; Clausilia bidentata (Strom.), "much the commonest shell 

 in the district"; Pupa cylindracea (DaC), Uunskey Wood ; Aficyhis 

 fliiviatilis, Miill., Port Patrick to Stranraer. 



Vitrina pellucida adhering to Feathers of a Bird, and 

 other Records of Land-shells at Butt of Lewis. — Mr Clyne, 

 Butt of Lewis Lighthouse, has been good enough to send me 

 three small examples (average greatest diameter 4 mm.) of 

 Vitrina pellucida which he found adhering by their own slime to 

 the abdominal feathers of a Meadow Pipit caught at the lantern 

 on the night of 4th/5th October. The incident is an excellent 

 illustration of the part birds may play in the distribution of ter- 

 restrial Mollusca. V. pellucida is one of our most widely dispersed 

 species, the recorded localities including Lewis, and even St Kilda. 



Advantage may be taken of the present opportunity to record 

 the occurrence at the Butt of Lewis of three other land-shells, 

 namely. Helix aspersa, of which Mr Clyne has sent me a mature 

 example, H. itala var. ins'.abilis, and H. acuta. Of the last two 

 I have seen specimens collected in September 19 14 by Mr Eagle 

 Clarke, and many have been received from Mr Clyne this 

 autumn. None of the above is new to the fauna of the island, 

 but their presence at its northern extremity is interesting. — William 

 Evans, Edinburgh. 



Two Additions to the List of " Forth " Nemertinea.— To 



the short list of Nemerteans given in my paper on the " Fauna 

 of the Forth Area," published in 1908 in the Proceedings of the 

 Royal Physical Society (vol. xvii., p. 23), I have this year added 

 the following species : — 



Cephalothrix rufifrons (Johnston) : common among small sea- 

 weeds and corallines in rock-pools at GuUane Point, East Lothian, 

 4th September 1915; also from rock-pools at Port Seton. Mr R. 

 Southern, whose helpful notes on the species (Clare Island Survey) 

 I had consulted, kindly verified my determination. 



Tetrastemnia {Oerstedia) dor sails, Abildg. : several examples of 

 this species occurred in rock-pools at Gullane Point, along with 

 the above. — William Evans, Edinburgh. 



