BULIMUS. 231 



Wood) are quite distinct, and the intervening country 

 is low and flat : therefore I do not think it possible that 

 H. obvoluta could have spread or wandered from the 

 Ashford Woods to Ditcham." Stoner Hill appears to 

 be six miles distant from Ditcham Wood. This species 

 inhabits the North of France, having been found by Dr. 

 Baudon at Morainval Wood near Mouy ; and if H. Car- 

 tusiana is British, the present species has quite as good 

 a claim to the same privilege. 



Genus V. BU'LIMUS*, Scopoli. PL VII. f. 1, 2. 



BODY long, always containable within the shell : tentacles 

 4 : foot rather long and narrow. 



SHELL cylindrically-conic or oblong, not thin or very 

 glossy : whorls drawn-out : spire long : mouth oval : outer 

 lip usually reflected, and sometimes (but not in British 

 species) furnished with tooth-like tubercles : umbilicus 

 exceedingly small and narrow. 



I will not inflict upon my readers a repetition of the 

 stale and uninteresting controversy which formerly 

 vexed the conchological world as to the origin and mean- 

 ing of the name of this genus. A few words will suffice 

 to give its history. The celebrated French naturalist, 

 Adanson, proposed, in 1757, for a small freshwater mol- 

 lusk of Senegal, a new genus, which he called Bulin, being 

 a local word. This name was capriciously or inadvertently 

 changed by Scopoli into Bulimus ; and it was used by 

 him, and subsequently adopted by Bruguiere, to receive 

 a heterogeneous assemblage of land and freshwater 

 shells, having no affinity with Adanson's species, or with 

 any of those to which the genus is now restricted. Dra- 

 parnaud in 1801 was the first to apply the generic word 

 to its present and generally recognized signification. 



* A corruption of Bulin, an African word. 

 Z 



