MCMURTRIE : SHELLS OF NORTH NORTHUMBERLAND. I07 



visited Holy Island. Dr. Jeffreys quotes the remark of Bouchard- 



Chantereaux that H. virgata never hibernates. But, if so, it 



seems to change its habit in the north. In spring I found only 



dead shells at Bamborough, while in early summer living speci- 

 mens, mostly with the shell-lip unfinished, were numerous. 



Pisidium pusillum Gmelin ? — Small stream at railway 

 station, Beal. 



Limnaea peregra Miill. — Beal. 



L. truncatula var. minor Moq. — Beal. 



L. truncatula var. elegans Jeff. — Belford, abundant in a 

 small marsh in a field east from the railway station, a few 

 years ago. The marsh has now been drained, but it will 

 probably be found elsewhere, as it seems a North of 

 England shell. It is plentiful at South Shields (Durham), 

 near the sea. 



Arion ater L. — Tweedmouth, 



A. bourguignati Mabille. — Tweedmouth. 



A. hortensis var. subfuscus. — Under stones, Tweedmouth. 



Li max agrestis L. — Tweedmouth. 



Vitrina pellucida Miill. — Alnmouth; Beal. 



Zonites celiarius Miill. — Beal; Tweedmouth. 



Z. alliarius Miill. — Alnmouth; Beal. 



Z. alliarius var. viridula Jeff. — Alnmouth. 



Z. nitidulus Drap. — Tweedmouth. 



Helix aspersa Miill. — Alnmouth; Bamborough. 



H. aspersa var. undulata Moq. — Bamborough. 



H. aspersa, somewhat approaching var. albofasciata Jeff. — 

 Alnmouth. 



H. nemoralis L. — Alnmouth; Bamborough. 



H. nemoralis. — A conical form. Alnmouth, rare. 



H. nemoralis monstr. subscalariforme. — Alnmouth, rare. 



H. nemoralis var. hyalozonata Taylor. — Alnmouth, sand- 

 hills on south side of the Alne, not rare. 



H. nemoralis var. libellula Risso, — Bands becoming obso- 

 lete. Alnmouth, south side, common. 



