﻿PULMONATA. 



335 



Spec. Char. " B. Testa sinisirorsd, ovato -oblong d, spird longiusculd, convexd, apice 

 obtuso ; anfractibus septenis, sensim crescentibus, vix convexiusculis, suturd plana, lineari 

 junctis, longitudinaliter et oblique dense striatis, striis cequalibus, regularibus, sublamellosis, 

 ultimo anfractu dimidiam partem testa cequante oblique paulo deflexo, basi imperforato ; 

 aperturd ovato-semilunari ; labro tenui, late expanso, rejlexo.'" — Desk. 



Height, \\ inch ; breadth, \ inch. 



Locality. Britain : Dulwich {A. Bott). 



France : Rilly (Beshayes). 



A specimen from which the figure above referred to has been taken is from the 

 cabinet of Mr. Arthur Bott. It is a cast only, the shell having entirely disappeared, but 

 seems to correspond with the French fossil, except that our specimen has the last volution 

 somewhat smaller, and the body is apparently rather larger. Our specimen has, how- 

 ever, been slightly distorted and thrown out of its regular form. The figure by 

 M. Deshayes represents the French shell as being spirally striated ; but the disappear- 

 ance of the exterior of our specimen renders it impossible to say what might have been 

 the ornamentation of the English fossil. I have therefore thought it most prudent to 

 add a note of interrogation to the specific name. 



This genus when first proposed contained many hundred species with shells that 

 varied much in outward appearance, some being terrestrial and some aquatic in their 

 habits. It has since been separated into a large number of genera or sections, some of 

 these depending upon differences in the animals which are not available by the 

 palaeontologist. 



No. 258. Bulimus convexus, F. E. Edwards, MS. Tab. XXXIV, fig. 6. 



Spec. Char. B. Testa elongatd, turritd ; anfractibus 6 convexis, suturd depressd, basi 

 convexd, aperturd ovatd, labro acuto, simplici, columella subreflexd, umbilico parvo. 

 Height, \\ inch ; breadth, -fths nearly. 

 Locality. Sconce {Edwards). 



A fine specimen with the above name is in Mr. Edwards' collection, and I know of 

 no species with which it can be identified or even to which it presents a close approxima- 

 tion. I have adopted the name given to it by Mr. Edwards. 



The nearest fossil with which I can compare it is Bulimus mirus, Desh., but our shell 

 differs so materially from the figure given of this species that it is scarcely necessary to 

 mention their possible connection. The French shell, however, is the nearest ally I can 

 find, and I mention it only for the purpose of comparison when the two shells of each 

 species can be placed together. 



