— 142 — 



ribus, distantibus, albo et fusco plus minusve articulatis, 

 quasi carinulas formanlihus, cœteris numerosis, parvulis, 

 striis longitudinalibus decussata, pallide fulvida, fusco 

 maculata; spira breviter conica, apice obtusulo, rotundato; 

 sutura irregulariter lineatHs, vix undulato-plicata ; an- 

 fractus 4 1/2 conveœiusculi, embryonales primi \ 1/2 lœvi- 

 gati, fusco-cornei, ultimus vix descendens, spiram supe- 

 rans{:: 5 : 3 1/2), ad peripheriam subcarinatus , paulo 

 infra fusco cingulatus^ basi et circa umbilicum profundum, 

 infundibuliformem , pervium pallide castaneus, costulis 

 umbilici majoribus et mugis distantibus ; apertura subver- 

 ticalis, ovato-circulariSy ad suturam subangulata, intus 

 pallide fulvida^ fusco lineata ; péris toma simplex, margi- 

 nibus convergentibus, callo tenui Junctis, columellari 

 reflexiusculo, aurantio- fusco, externo vix expansiusculo, 

 subacuto. — Operculum testaceum, albidum, medio conca- 

 viusculum. — Diam.majAO 1/4, min. 8 \ 12, ait. 81/2mî7/. 

 Apertura 6 mill. longa, 4 lata. (Coll. Grosse.) 

 Habitat in insula Rodriguez dicta. (A. Desmazures.) 

 Obs. Species Cyclostomati pulchro Grayi, Seychellarum 

 incolœ, forma et colore vicina, sed minor, numéro atifrac- 

 tuum (4 1/2 nec5) et costulis transversis, numerosis^ par- 

 vulis (3-4 majoribus alternantibus) facile distinguenda. 

 Variât colore, tum pallide fulvido, fusco plus minusve ma- 

 culato, tum violaceo- fusco, pallide fulvido longitudinaliter 

 strigato, et margine columellari tum aurantio- fusco, tum 

 pallidiore. 



42. Omphalotropis t^niata, Crosse. 



T. perforata,oblongo-conica, tenuiuscula, parum nitens, 

 sublœvis, ad suturam spiraliter bisulcata, albida, zoîia 

 fusca cingulata; spira subelongato-conica, apice subacute 



