SOWERBY: marine shells of south AFRICA. 371 



Natica quekettii Sowerby, n. sp. 



Testa globosa, mediocriter uvibilicata, crassiuscula, Jindiqiie 

 fiisco inultipundata, viaculis gratidibus fuscis inegiilariter 

 pida ; spira brevissinia, aiifractus 4, hevis, convexi, sutura 

 profundhiscula sejuiicti ; anfradus iiltimus inflatiis^ rotun- 

 datus ; umbilicus profundus sub-circularis^ saturate fusco 

 marginatus ; apertura seini-drcularis ; coluniclla obiiq7(a, vix 

 curvata. 



Long. 7, maj . diam. 8 7nillim. 



Hub. Natal. 



A small species somewhat resembling A^. iniper/orata, 



but distinctly perforate. It differs in form from A^./orata, 



and the umbilicus is smaller. 



Natica sebae. — Souleyet, 'Voyage de la Bonite,' pi. 35, figs. 

 6, 7 ; 'Thes. Conch.,' vol. v., pi. 457, fig. 79. Natal. 



Natica taeniata Menke = N. ala-papilionis Chemn. — Sow., 

 'Thes. Conch.,' vol. v., pi. 457, pi. 46. Natal. 



Scalaria simplex Sowerby, n. sp. 



Testa elongato-pyraniidata, iiiiperforata, alba, ?iitida ; anjiadus 

 6, rotunda ti, sutura profunda sejundi ; coslis hvitcr obliquis 

 g-io, cequalibus, crassiusculis,siniplidbus.,vix angulatis ; aper- 

 tura fere circularise peristoma crassiusculo. 



Long. 8, viaf. diam. 4-^ millim. 

 Hab. A^atal. 



A small Scalaria with no prominent distinguishing 



characters, but seemingly different from any hitherto 



described. 



Aclis unilineata Sowerby, n. sp. 



Testa elongata, angusta, tenuis, alba ; spira turrita ; anfradus 

 8, .planato-convexi, longitudifialiter nmiutissime densissime 

 plicati, linea unica fiisca spiraliter cindi ; sutura impressa, 

 lira angusta inseda ; atifradus ultimus breviusciilus lix 

 inflatus, ad basin rotundatus, Icevisdme produdus ; apertura 

 ovata ; columella tenuissima, leviter incurvata, hand plicata, 

 peristoma simplex. 



Long. 5, 7naf. diam. i\ millim. 

 Hab. Port Elizabeth. 



