298 TAYLOR : VARIATION OF LIMN^A PEREGRA. 



figures first publislied by him do not show nearly so great a 

 resemblance. Clessin gives Westerlund's variety idlepitschi as 

 synonymous with his raiblensis. Ziegler's var. solemia is also 

 very closely allied to or identical with the var. acummata. 



The specimen figured was found by Mr. S. C. Cockerell, 

 at Mottingham, Kent, and kindly given me in 1883 by him. 

 It answers to the original description, but the outline. shows 

 the whorls rather too convex. 



Var. vulgaris C. Pfeiffer. Shell smaller than typical peregra, and with a 

 less prominent spire, whorls and aperture less convex. 



This would seem to be one of the most com- 

 mon forms of this most variable species. It was 

 considered by its author to be intermediate between 

 Z. aiiricidaria and L. ovata. 



The variety figured by Kobelt and named by him 

 peregro-ovata does not offer any sufficiently appreciable differ- 

 ences to warrant separation from this form, and the variety 

 ovaliformis T. D. A. Cockerell may also very appropriately be 

 included here. 



The specimen figured was kindly given me by Mr. F. W. 

 Wotton, of Cardiff, and is one of several found by him in a 

 ditch on the East Moors near that town, and fairly reproduces 

 the original figure given by C. Pfeiffer, Deutsch. Moll., vol. I., 

 pi. iv., fig. 22, which is also practically identical with L. ovata 

 var. B. of Draparnaud, but must be carefully distinguished from 

 L. vulgaris of Rossmassler, which appears to be Z. lagotis of 

 Schrank, a form we know in England as Z. aiiricidaria var. 

 acuta Jeffreys. 



Var. boissii Dupuy. Shell smaller and more glol)Ose than type, whorls 

 convex, spire produced, aperture oval. 



This variety would appear to be practically 



identical with both the Hungarian var. hazayana of 



Clessin, and the var. fontinalis Studer, a native of 



Switzerland, both these forms differing only by their 



J C. vi.. Jan., iS 



