152 



ceum, concaviusculum, lividum, 5-spirale. — Diani. 15, 

 altit. 18 mill.» (M.) 



Cyclostoma Crosseanum Morelet in Journ. Conch. 

 XXV. 1877. p. 218. 



Habitat Madagascar. 



27"- C. chromius Morelet. (p. 172.) 

 „T. anguste perforata, globoso-turbinata, tenuiuscula, 

 diapliana, laevigata, nitide lutea, fusco-rubente unizonata. 

 Spira conoidea, apice violaceo-fusco, obtuso; anfract 5 

 convexi, ultimus iiiflatus, infra zoiiam carinulis 1 — 3 

 exilißsiinis munitus, non descendens; apertura pai'um 

 obliqua, subcircularis, intus concolor; peristoma acutum, 

 breviter expansum, marginibus disjunctis, columellari 

 strictiore. — Operculum testaceum, sordide lividum, pla- 

 nulatum, 4-spirale. — Diam. 10, altit. 14 mill." (M.) 



Cyclostoma chromium Morelet in Journ. Conch. XXIV. 

 1877. p. 218. 



Habitat Madajjascar. 

 32«- C. Hildebrandti Martens (p. 173.) 



„Testa anguste umbilicata , globosa-conica, tenuis, 

 tenuiter suboblique striatula et lirulis s uralibus circa 7 

 in anfractubus superioribus distinctis, in ultimo cvanes- 

 centibus sculpta , flavescenti-fusca , fasciis complurimis 

 rufofuscis picta: spira elevato-conica, apice obtusiuscula; 

 sutura profunda: anfr. 4 — 4Y2» primus laevis, mammilla- 

 ris, sat magnus, ultimus angulo peripherico evanescente, 

 demum plane rotundatus, ad aperturam paululum des- 

 cendens, periomphalio non peculiariter sculpto; apertura 

 dimidiam longitudinem paulo superans, modice obliqua, 

 ovato-circularis ; peristoma interruptum, latiuscule expan- 

 sum, margine externo protuberante, columellari subdila- 

 tato, libera. — Long. 8 — 9'/^, diam. maj. 9 — ^10, min. 

 6%— 7 mill." (v. M.) 



