AND OTHER FAMILIES. 



165 



Helix monodonta. Plate XIX. fig. 62. 



Tesld siiperne sitbconicd, infeme injlald, lasvi, alba, fasciis duabus fitscis, im- 

 perforulu; anfractibus ternis ; spira oblusa ; aperlurd subrotunda ; labro acuta, 

 subreflexo, sublus unico deiite induto ; columella Iscvi. 



Shell subconical aijnve, inflated below, smooth, white, with two brown bands, im- 

 perfoi-ale ; whorls three ; spire obtuse ; aperture nearly round ; outer lip somewhat re- 

 flected but siiurp, having a single tooth on the lower limb ; columella smooth. 



Hab. Java? 



My Cabinet. 

 Diain. 9-20ths, Length 7-20ths of an inch. 



Remarks. — The two brown bands and single tooth of this species, 

 together with the absence of an umbilicus, may serve to distinguish it. 

 The superior termination of the lip is bent down towards the base of the 

 columella. It is supposed to be from the collection of Mr Shillaber. 



Helix cyclostomopsis. Plate XIX. fig. 63. 



Testa snbglobosd, siiperne depressa, inferne inflata, longitudinaliler et minute 

 striata, pellucida, cornea, late umbilicata ; anfractibus quaternis ; spira. depressa; 

 apertura subcirculari ; labro crassoet rejlexo ; columella Isevi, ad basin crassescenti. 



Shell subglobose, depressed above, inflated below, longitudinally and minutely striate, 

 translucent, horn coloured, widely umbilicate ; whorls four ; spire depressed ; aperture 

 nearly a circle; outer lip thick and reflected; columella smooth, at the base thickened. 



Hab 



My Cabinet. 

 Diam -9, Length -6 of an inch. 



Remarks. — In its aperture this species has a strong resemblance to 

 a Cyclosloma. The superior and inferior portions of the lip do not, 

 however, join by one-fifth of a circle — the resemblance is strong in the 

 44 



