THE NAUTILUS. 81 



Planorhis Madagascariensis E. A. Smith. 



Hab.: Vinaninony and Feiioarivo. 

 Planorhis trivialis Morelet. 



Hab.: Same localities. 

 Acroptychia cequivoca Pfeiffer. 



Hab.: Antankaratra (Humblot). 

 I think that A. inanicata, Cr. and F. is the same as this. 



Hainesia crocea Sowerby. 



Hab.: Andrahomana, S. Madao^ascar (Sikora). 

 I do not see that any precise locality was ever given for this 

 species, erroneously ascribed to Mauritius by Benson. 



Gyclostoma carnicolor Anc. 



Testa pro genere mediocriter sed profunde umbilicata, globoso- 

 conica, solida, supra parum, inferne magis nitida, superne spiraliter 

 multisulcata, prceterea lineis incrementi sub lente decussata, carnea 

 vel rubella, ad apicem luteola, fascia fuseo-coerulea infra peripheriam 

 cincta. Spira conoidea, apice sat minuto, obtuso. Anfractus 5^ 

 convexo-rotundati, ultimus bene rotnndatus, subtus fasciam laevi- 

 gatas, dein iterum circa umbilicum et in umbilico ipso confertim 

 concentrice liratus, antice breviter ascendens. Apertura albida, 

 intiis Candida vel luteola, fascia transmeante. Peristoma expansum, 

 marginibus approximatis, callo subemarginato junctis, columellari 

 dilatato-reflexo. Operculum testaceum, sordide album, anfractibus 

 4, nucleo subcentrali. 



Diam. maj. 23^-261, min. 18-20, alt. 21-26 mill. 



Hab.: Andrahomana (Sikora). 



Nearly related to C. asperum, Pot. and Mich., but much less 

 rugose and of different color. It may be the southern analogue of 

 asperum, which lives in the northern end of Madagascar. 



Gyclostoma Alayeriamnn Anc. 



Testa globoso-turbinata, pro genere anguste umbilicata, parum 

 crassa, spiraliter confertim acutique lirata, liris in ipso umbilico con- 

 spicuis, infra peripheriam ultimi anfractus Ijevioribus, ochraceo- 

 fulvescem, fasciis angustis 2 fuscis, quarum una angnlo superiore 

 aperturte incipit, altera minus conspicua supra peripheriam ultimi 

 cingulata. Spira turbinata, apice Isevi, obtusulo. Anfractus 5 

 valde convexi, sutura profunda, inferne minute plicatula, ultimus 



