MCMURTRIE : MOLLUSCA OF NORTH BERWICK. 3 



L. palustris Miill. — Luffness Links. Some with dark-brown 



rib, others with varices. 

 L. palustris var. tincta Jeff. — With type. 

 L. truncatula var. minor Moq. — North Berwick. 

 Ancylus fluviatilis Miill. — Glen Burn. North Berwick. 

 A. fluviatilis var. albida Jeff. — A dead shell cast upon shore. 

 Arion ater L. — Moderately common. No specimen preserved. 

 A. hortensis Fe'r. — Common. No specimen preserved. 

 Limax agrestis L. — Very common. No specimen preserved. 

 L, arborum B.-Ch. — Bass Rock. 



L. maximus L. — North Berwick, occasionally. Finely marked. 

 Succinea elegans var. ochracea Betta. — At west and east 



ends of Luffness Links. 

 Vitrina peliucicia Miill — North Berwick and Dunbar. 

 Zonites cellarius Miill. — North Berwick. 

 Z. cellarius var. complanata Jeff. — North Berwick. 

 Z. alliarius Mill. — North Berwick. 

 Z. aliiarius var. viriduia Jeff.— Bass Rock. 

 Z. nitidulus var. nitens Mich. — Dunbar. 

 Z. contractus Westl. — Binning Wood. [This small form has 



been differentiated by Westerlund from crystallinus under 



the foregoing name]. 

 Z. purus var. margaritacea Jeff. — Binning Wood. 

 Z. fulvus Miill. — Binning Wood, and Luffness. 

 Helix aspersa Miill. — Abundant at North Berwick and on the 



Bass Rock. 

 H. aspersa var. zonata Moq. — North Berwick, somewhat 



common. 

 H. aspersa van undulata Moq. — This type is common, but 



well-marked specimens are rare. 

 H. aspersa var. flammea Picard. — With gradations to the 



species. 



Varieties approaching nigresceus and obscinata are 



occasionally found. 

 Helix nemoralis L. — Common. A specimen with the bands 



