28 



PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



GV pulcKella, V ~^ conical var. 



Figs. Ga-k. — Shells of the British species of Vallonia ; all x 15. Figs. Ga-6j 

 represent normal specimens of the three species from Cambridge. Fig. 6k 

 depicts an unusually conical example of V. pulche.lla from Madinglcy, 

 Cambridgeshire. 



closer affinities with. F. costata than has V. excentrica, and should 

 therefore take the second place among the British species. 



Text-fig. 6^ depicts an unusually conical specimen of this species, 

 found near the village of Madingley, in Cambridgeshire, associated 

 with normal individuals of F. pulcJiella, a single specimen of F. 

 excentrica, and a few examples of F. costata. 



