On new Species of Land- Shells. 409 



occurrence this form may practically be disregarded in the 

 enumeration of the venomous species. 



It should be noted in connexion with these banded or coral- 

 snakes that a very great deal of variation characterizes the 

 greater number of species, and though they have been grouped 

 under many different names, it can hardly be doubted that 

 many of them will have eventually to be placed together. 

 The four here mentioned are definitely well-marked forms. 



LVIL— Diagnoses of new Species of Land-Shells from the 

 Islands of Flares, Sumbawa, and Samba. By EDGAR 



A. Smith. 



A rioph a n ta s u m ba 10a na . 



Testa depresse globosa, anguste urnbilicata, dilute olivaceo-fuscesceus, 

 zona indistincta pallida prope medium cincta, linea rufa ad peri- 

 pheriam ornata ; spira breviter conoidea, ad apicem obtusa ; 

 anfractus sex, superiores parum convexiusculi, lineis incrementi 

 obliquis curvatis aliisque spiralibus minute grano-decussati, 

 ultimus foevior, inflatus, subtus niteus, haud descendens ; aper- 

 tura obliqua, lato lunata, intus albido-caerulescens, linea rufa 

 dimidiata ; peristoma tenue, margine columellari aibo, leviter 

 incrassato, ad insertionem expanso, reflexo, umbilicum seuii- 

 obtegente. 



Diam. maj. 43 millim., min. 34; alt. 27. 



Bab. Sumbawa, 4000 feet. 



Both the upper and lower surface of the body-whorl 

 exhibit faint spiral strife, which do not, however, produce 

 fine granulation as on the upper whorls. Closely allied to 

 Nanina aryuta, Pfr., from Java, but more finely sculptured 

 and more rounded at the periphery and banded. 



Rhysota peramama. 



Testa depressa, innata, anguste urnbilicata, tenuis, pallide fusco- 

 olivacea, apicem versus purpureo-rufescens, circa medium anfr. 

 ultimi linea rufa cincta ; spira convexa, brevis, obtusa ; anfractus 

 5i, lineis incrementi obliquis arcuatis, striisque spiralibus con- 

 t'ertis subgranose cancellati, superiores vix convexiusculi, sub- 

 lente accrescentes, ultimus magnus, inflatus, convexus, haud 

 descendens, circa umbilicum haud granulatus ; apertura obliqua, 

 latissime lunata, intus sordide caerulescens, in medio uni-zonata; 

 peristoma tenue, margine columellari prope insertionem reflexo 

 et dilatato, dilute corneo. 



Diam. maj. 41 millim., min. 33 ; alt. 26. 



Hob. South Flores, at 3600 feet. 



