99 



marginata : subtus convexa, costulis obsoletis cincta : apertura 

 ampla, rhomboidea, peristomale revoluto. 



Diam. 2 ; alt. li poll. Hab. Tavoy. 



In size and form it is like H. lampas from Jamaica ; but differs 

 especially in having a broad, deep umbilicus. 



Helix refuga. Testa sinistrorsa, discoidea, supra plana, infra 

 concava, viridi-cornea : anfr. 6 arete volutis, confertim striatis, 

 ultimo prope aperluram deflexo ; sutura impressa : apertura per- 

 obliqua, subcordiformi, peristomate albo, reflexo, callo sinuoso 

 connexo ; fauce lamella alba, flexuosa, ad anfractum penultimum 

 volvente. 



Diam. -^ ; alt. -^ poll. Hab. Tavoy. 



This remarkable shell is almost exactly like H. carabinaia, 

 Fer., except that it is reversed, and has no lamellae revolving 

 within the outer lip. 



Helix ho^^esta. Testa orbicularis, depressa, subcarinata, 

 tenuis, nitida, submargaritacea, straminea vel albida, sub-perfo- 

 rata, subtus lineis subtilibus volventibus striata : anfr. 5 convexis ; 

 sutura lineari, marginata : apertura lunala, labro simplici, acu- 

 tissimo, ad umbilicum reflexo. 



Diam. -^^ ; alt. } poll. Hab. Tavoy. 



A plain, simple shell, resembling H.fusca more than any other 

 species I have seen. It is, probably, a Nanina. 



BuLiMUS MONiLiFERUS. Tcsta conico-oblongata, plerumque 

 sinistrorsa, Isevis, luteo-cinerea, flammulis longitudinalibus, fascia 

 suturali lineari, et fascia subsuturali interrupta fuscis ; regione 

 umbilicali fusca, fascia lutea divisa : anfr. 7, ultimo subcarinato ; 

 apertura subovata, basi angulata, sub-effusa ; labro reflexo, rubro- 

 purpureo, ad columellam dilatato ; fauce purpurea. 



Long. 1| ; lat. y\^ poll. Hab. Tavoy. 



Differs from B. contrarius and B. Iccvus^ Mull., by its angular 

 aperture, and the color of its lip and throat. The interrupted line, 

 just in front of the suture, exists in all the specimens I have seen. 

 It does not always occur reversed. 



Pl'PA mellita. Testa parva, subfusiformis, pcllucida, nitida, 

 straminea, apice obtusa : anfr. 7 convexis ; sutura impressa, den- 

 ticulata : apertura ampla, subquadrata, plica columellari, plica 

 basali, plica labiali et lamella posteriori ringens : peritremate un- 

 dulata, reflexa, alba. 



