— 8 — 



ciis latis fuscis pulcherrimc ornaia, epidermide cutacea 

 viridi lutescente induta; spira depressa, subgradata, 

 valde erosa. Anfr. superst. 4^2 convexi, supra planati 

 sed vix angulati, ult. multo major, rotundatus, circa 

 umbilicum vix lovissime compressus. Apert. oblonga, 

 supra et infra angustata, haud dilatata, faucibus fusces- 

 centibus pulcherrime fasciatis ; peristoma tenue, acutum, 

 haud incrassatum, marginibus callo tenuissimo junctis. — 

 Operculum normale, annulis prominentibus 3—4 insigne. 

 — Diam. 35, alt. 35, alt. apert. obl. 25, lat. 16 mm. 



Meladomus boettgeri Kobelt, in: Marl. Ghemn. ed. II 

 t. 30 f. 6, 7. 

 Hab. Gabun. 



Diagnosen neuer Cyclotiden. 



Von 

 Dr. W. Kobelt. 



1. Cydotus (Opisthoporus) bialatus (Moellendorff mss.). 

 T. parva, late umbilicata, depressa, solidula, subtiliter 

 striatula, epidermide tenui, lutescente, adhaerente induta, 

 strigis fulminulatis supra castaneis, infra peripheriam 

 pallidioribus dein evanescentibus ornata. Spira brcviter 

 conica, prominula, summo unicolor castaneo, apice acu- 

 tissimo, sutura impressa. Anfr. 4V2 regulariter accrescentes, 

 inferi ad suturam planati, dein convexi, uHimus circa um- 

 bilicum compressus, antice valde descendens, 3 mm pone 

 aperturam tubulo erecto retrorsum spectante insignis. 

 Apertura perobliqua, circularis, piano irregulari ; peristoma 

 fusco - albidum, subduplex : internum continuum, haud 

 porrectum, externum tenuissimum, extus late dilatatum et 

 reflexum, supra et ad basin alato-productum, ad columellam 

 subite evanescens. — Operculum normale. 



