CUE NAUTILUS. 65 



Hemiplecta oleata Anc. 



Testa globoso-depressa, tenuis, anguste perforate, oleoso-nitens, 

 supra tenuissime et irregulariter granulata ; subtus magis nitida, 

 lineis radiantibus increment! notata et sub valida lente striolis ppi- 

 ralibus undulatis valde confertis cineta, superne fusca, ad peri- 

 pheriam zonula pallida cingulata, infra peripheriam intense castanra, 

 denique basi pallidior. Spira convexa, obtusa. Anfractus 5 con- 

 vexiusculi, regulariter crescentes, sutura appressa nee profunda 

 divisi, ultimus ampins, vix rotundato-angulatus, basi convexus. 

 Apertura subobliqua, lunata, marginibus distantibus, callo nitido 

 tenuique junctis, supero convexo-declivi, basali regulariter arcuato, 

 columellari anguste in trianguli forma expanse, subincrassato t 

 Peristoma acutum, rectum. 



Diam. maj. 37, min. 3<H, alt. 23, alt. apert. oblique 17^ mill. 



Hab.: Antsianaka Country (E. Perrot)~ 



Very distinct from Hemiplecta Balstoni, Angas, H. Cleamesi, E. 

 A. Smitb, and H.formosa, Anc., all also from Madagascar. 



Hemiplecta profuga Anc. 



Testa depressa vel subgloboso-depressa, tenuis, perforata, nitida, 

 supra subsericea, luteo-cornea, infra angulum medianum zona fusca 

 angustaque cingulata. Spira plus minusve convexa, conoideo- 

 depressa, obtusa. Anfractus 5-5^ convexiusculi, regulariter cres- 

 centes, oblique obsoleteque lineis increment! confertis vix sculpt!,, 

 supra passim et inconspicue subgranulati, sutura parum profunda 

 discreti, ultimus ante medium angulo ad aperturam paulatim evan- 

 eseente aut subrotundata cinctus, basi convexior. Apertura sub- 

 obliqua, lunata, transverse irregulariter oblonga, extus subangulata, 

 marginibus remotis, basali antice subsinuato, columellari in trianguli 

 forma supra perforationem circularem et minutam anguste dilatato. 



Diam. maj. 22, min. 181, a i(. apert. oblique 8 mill. 



Hab.: Antankaratra, N. Madagascar (Humblot). 



Tbis is allied to H. oleata, but is much smaller, more depressed 

 and of lighter color. The sculpture also is more obsolete. 



Macrochlamys granoscnlpta Anc. 



Testa perforata (perforatio parva, sed aperta, circularis), tenuis 

 depressa, oleoso-micans, sordide luteo-cornea, vix lineis increment! 

 notata, striis confertissimis spiralibus passim, sed ad suturam 

 prassertim, granulosis decussata, apice lasvi. Spira depresso-sub- 



