192 Mr. E. A. Smith on new Species of Helicidse. 



Anfractus 4|, celeriter accrescentes, sutura lineari sejuncti ; primi 

 2\ eonvexiusculi, prominuli, omnino rufescentes, cseteri minus 

 convexi ; ultimus supra et infra carinam leviter concaviusculus, 

 antice subito valdeque descendens, paululum ante labrum leviter 

 contractus. Apertura valde obliqua, undique fusco -nigra, triangu- 

 laris ; peristoma album, antice productum, nasutum, sursum ver- 

 Bum, margine dextro leviter reflexo, columellari latiore, umbili- 

 cum parti m obtegente, extremitatibus callo tenui fusco-nigro junctis. 

 Lougit. 23 millim.; lat. max. 41, min. 34. 



H. Listeri (Reeve, Conch. Icon. fig. 122 7 o-d) gives some idea 

 of the form of this species. It is, however, more narrowly 

 umbilicated, quite differently sculptured, has a black aperture, 

 and another style of coloration. 



Helix {Sphcerospird) Gerrardi. 



Testa late umbilicata, globosa, obtuse conoidoa, saturate purpureo- 

 fusca, apertura labrisque cseruleo-cinoreis ; spira breviter conica, 

 ad apicem obtusissima. Anfractus quinque, convexi, incrementi 

 lineis striati, sutura lineari pallida, paulo profunda, discreti ; primi 

 quatuor superne granulis minutis, in seriebus obliquis regulariter 

 dispositis, ornati, ultimus magnus, ventricosus, haud granulatus, 

 antice aliquantodescendens. Apertura subhorizontalis, aeque longa 

 ac lata; peristoma crassiusculum, undique valde expansum et 

 reflexum, margine columellari lato, callo tenuissimo pellucido 

 labro juncto. 



Longit. 37 millim. ; lat. max. 48, min. 33. 



The colouring of this species is very like that of H. informis, 

 Uousson, which, however, is quite distinct in other respects. 

 The granulation of the spire is very remarkable ; and it is 

 curious that it does not extend to the last whorl. This, how- 

 ever, may not always be the case, but merely an individual 

 peculiarity of the single specimen at hand. The granules are 

 arranged in such a manner as to form oblique series in two 

 directions or in a criss-cross direction ; they are excessively 

 minute and crowded upon the topmost whorls, and gradually 

 enlarge and become further apart as the shell grows. In 

 addition to the sculpture already mentioned, there are indica- 

 tions on the body-whorl of a few shallow transverse indistinct 

 sulci, with faintly elevated broad ridges between them, espe- 

 cially around the middle. The apex of this species is pecu- 

 liar ; for the nucleus coils in and downwards and is less raised 

 than the second whorl. 



