54 Sitzung der phjsikalisch-malhematischen Klasse 



basal! versus inserllonem retrorsuna sinuato, dein rursus dilatato. 

 Diam. maj. 9, min. 8, alt. 4^, apert. 4 Mill. 

 Siam, unweit Petschaburi. 



12. C assidula multiplicat a n. sp. 



Testa imperforata, ovato-oblonga, solida, striatula et sulcis 

 spiralibus confertis superficialibus sculpta, hepatico-fusca; spira 

 conoidea, obtusa, sutura luteo-fasciata; anfr. 8, ultimus supra 

 rotundatus, inCra sensim attenuatus, carina basali distincta; aper- 

 tura oblonga, | longltudinls totlus testae superans; pllca parie- 

 talis superior elongata, subperpendicularls, inferior obllqua; 

 plica columellaris valida, extrorsum tri- vel qua- 

 dri-partita; peristoma incrassatum, subrectum, hepatico-fu- 

 scum, raargine basali et externi parte inferiore dilatatis, hoc ex- 

 tus inflexa, intus bituberculata. Long. 21, diam. 13, apert. alt. 

 15^ MIU. 



Insel Banka. Verwandt mit C. auris felis. In einigen Samm- 

 lungen sab ich diese Art fälschlich als C. nuclens Martyn be- 

 stimmt. 



13. C assidula flaveola n. sp. 



Testa imperforata, ovato - fusiformls, sulcis spiralibus con- 

 fertis exarata, luteo-brunnea; spira conica, sat elongata; anfr. 7, 

 convexlusculi , ultimus supra et infra aequaliter attenuatus, ca- 

 rina basali crassa, albida ; apertura vix obliqua, oblongo-ovata; 

 plica parietalis superior brevis, fere perpendicularis, inferior 

 transversa, intrans; plica columellaris valida, transversa, usque 

 in marginem peristomatis producta; margo externus duplicatus, 

 rufobrunneus, intus unidentatus; Long. 10, diam. 5, apert. alt. 

 6 Mill. 



Ceram (Molukken). 



14. M elampus Siamensis n. sp. 



Testa ventricoso-ovata, solidula, glabra, palllde brunnea, 

 plurifasciata; spira convexo- conoidea; sutura appressa, lacera; 

 anfr. 7 — 8, ultimus tumidus, versus basin paulum attenuatus, 

 basi suleis compluribus cinctus; apertura \ — \ longltudinls oc- 

 cupans, angusta, basi paulum dllatata, vix effusa; pllcae parieta- 

 les 2, superior sub verticalis, plus minusve denticu- 

 lata, inferior compressa, intrans; plica columellaris obllqua; 

 margo columellaris adnatus, haud distinctus; margo externus 



