MCMURTRlE : MOLLUSCA OF NORTH BERWICK. 5 



H. rotundata var. alba Moq. — Bass Rock, as common as the 



species. 

 H. pygmasa Drap.— Luffness, and Binning Wood, among beech 



leaves. 

 H. pulchella Miill. — Luffness, among stones, common. 

 Bulimus obscurus Miill. — North Berwick, among stones at 



water-works, and at roots of herbage close to the sea. 

 Pupa umbilicata Drap. — North Berwick and Bass Rock, 



plentiful. 

 P. umbilicata var. edentula Moq. — North Berwick and Bass 



Rock, occasionally. Also specimen, approaching variety 



albina Moq., Luffness, rare. 

 P. marginata Drap. — North Berwick and Luffness, not so 



common as the edentulous form. 

 P. marginata var. edentula Moq. — North Berwick and Luff- 

 ness, somewhat abundant among stones. 

 Vertigo antivertigo Drap. — Luffness, among stones, not 



common. 

 V. pygmaea Drap. — Luffness and North Berwick Law, among 



stones. 

 V. edentula Drap. — Luffness, not common. 

 V. minutissima Hartm. — One specimen on North Berwick 



Law, living with H. pygmcea ; one specimen cast up on 



beach in shell-sand. 

 Cochlicopa lubrica Miill. — Luffness, plentiful among stones. 

 C. lubrica var. lubricoides Fer. — ^With type. 

 Carychium minimum Miill. — Luffness and Binning Wood, 



among beech leaves. 



Note. — I have not found Clausilia rugosa Drap., though 

 it probably occurs. A few years ago I turned loose in the glen 

 at North Berwick a number of Clausilia lai/iinata Mont, and 

 C. rolphii Gray (from Buriton, Hants.). It is not likely they 

 have withstood the climate. I have not introduced any other 

 mollusks. 



