﻿PULMONATA. 



331 



Genus 6th. — Helix. Linne, 1758. 

 For generic character see ante, p. 60. 



No. 253. Helix Morrisii, F. R Edwards, MS., Tab. XXXIV, fig. 5 a, b. 



Spec. Char. H. Testa orbiculata, lenticulatd, subdepressd, obsolete striato-plicatd, ad 

 peripheriam angulatd ; spird brevi ; anfractibus quinis convexiusculis, suturd simplici 

 junctis, lente crescentibus ; ultimo majore, subtus convexiusculo, Icevigato, umbilicato ; 

 aperturd paulo obliqud, subquadratd ; labro acuto simplici. 



Diameter, f-ths of an inch. 



Locality. Sconce {Edwards). 



After my plate had been arranged I ascertained that several species of this genus, 

 belonging to the Upper Eocene of the Isle of Wight, which had not been figured by Mr. 

 Edwards, were in his cabinet, and I have been here able to introduce one of these as above 

 referred to, and as Mr. Edwards had probably given to it a careful examination, and 

 satisfied himself that it was a new species, I have much pleasure in adopting the name 

 he has proposed for it. 



It slightly resembles a shell from the Lower Tertiaries of France, H. Heberti, 

 Deshayes ('An. sans Vert, du Bas. de Par.,' torn, ii, p. 813, pi. lii, figs. 5 — 7); but, 

 judging from the figure, it appears to possess several differences. M. Deshayes also figured 

 and described a shell (' Desc. de Coq. Foss. des Env. de Par.,' p. 55, pi. vi, fig. 3), to which 

 he gave the name of H. dubia, from near Versailles, and he gave for it also the locality 

 of the Isle of Wight; but in his second work, at p. 826, he has doubted the propriety of 

 that statement, and thinks that his shell is an incomplete specimen of H. Moroguesi, but the 

 figure of this [dubia) more resembles our shell than does any other. Mr. Edwards, he 

 says, has denied the presence of H. dubia in our English beds, and I have not the means 

 of making a comparison. 



I fear that some of these fossil Helices must be carefully compared with the specimens 

 of the foreign species before a perfect identity or non-identity can be relied on ; and this 

 I am not able to do. M. Deshayes has not given as a synonym any Helix from the 

 English Tertiaries. 



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