SOUTH AFRICAN MARINE MOLLUSCA. 49 



*Natica nap us Smith. 



Natica napus Smith, 'J. of Malac./ vol. xi, p. 34^ PI. J I, 

 fig. 22. 



Hab.— Port Alfred. 



Natica sagraiana (VOrhigny, var. 



Natica sag-raiana (VOrhigni/ : Eeeve, ' Conch, Icon./ 

 vol. ix, fig. Ill a, h ; Sowerby, "^Marine Invest./ vol. ii, 

 p. 229. 



Hab. — Saldanlia Bay, Cape Coast, 28 fathoms. 



"^Scala bullata Sowerhy. 



Scalaria bullata Soicerhy, 'Thesaurus Conch./ vol. i, 

 p. 94, PI. XXXIY, fig. 87; 'Conch. Icon.,^ vol. xix, fig. 8. 

 Hab. — Durban (Burnup) ; Philippine Islands. 



Scala tenebrosa Soicerhy. 



Scala tenebrosa Soicerhy, ' Marine Invest.,' vol. ii, p. 224, 

 PI. lY, fig. 6. 



Hab. — 8. Africa. 



* Scala durbanensis n. sp. PI. VII, fig. 17. 



Testa parva, elongata, alba, solidiuscula ; anfractus 10, 

 supremi tres lasves, convexi, caeteri normales convexi, costis 

 obliquis 14 valde reflexis, supra spii'am peroblique continuis, 

 instructa, costis in anfr. ultimo versus aperturam sensim 

 latioribus, inter costas minute spiraliter striati ; apertura 

 oblique ovata. 



Longit. 10 mm.; diam. 4 mm. Apertura intus 2 longa, 

 1'5 lata. 



Hab. — Durban (Buriiup). 



Remarkable on account of the very reflexed and rather 

 numerous costge, a few of which upon the body-whorl, near 

 the aperture, are much broader than the rest. The spiral, 

 close-set stride between the riblets are only visible under a 

 strong lens. 



VOL. 1, PART 1 4 



