BY THE REV. J. E. TENIS0N-W00DS. 17 



Cassis exigua. PL 2, fig. 7. 

 Testa parva, ovata, subventricosa, nitente ; anfr Z\. superne 

 obtuse angulatis , et corrugatis, spiraliter concinne striatic } et longitud. 

 cvebre irregulariter corrugato sulcatis, variciferis ) stviis cerebris, 

 undnlosis , sutura granulose marginata, nucleo globoso, Jcevi, apertura 

 sinuata, utrimque curvata) labro crassa, rotunduio, intus obsolete 

 dentato ; labio inconspicuo, postice uni-tuberculato, antice 4 dentibus, 

 gradatim crescentibus insignito ; canali lato, brevissimo. Long. 

 10, lat. 6i. 



Shell small, subventricose, shining, whorls 3^-, obtusely angular 

 above and corrugated, neatly, spirally striate and lengthwise 

 closely, irregularly, corrugately sulcate ; varices at about every 

 half whorl. Striee close and undulating, suture granulosely 

 niarginate, nucleus globose, smooth and shining of one whorl, 

 and very conspicuous. Aperture sinuous, curved at each end ; 

 labrum thick, rounded, obsoletely dentate within ; lip inconspicu- 

 ous, with one posterior tubercle and four teeth gradually increas- 

 ing in size on the anterior end of the columella, canal broad and 

 very short. 



This is evidently a young shell, but not immature so that it 

 can be safely described. The last whorl and the mouth is 

 perfectly complete, and the mamillate or pullus-like nucleus show 

 what the earlier stages are. In size it cannot be compared to 

 any existing species, but in ornamentation there is a faint 

 approach to our living Australian G. paucirugis. That shell is 

 more granular. In the fossil the corrugations at the angle are 

 a double series of ribs arising at different parts of the angle and 

 near the mouth they are faintly continuous with the sulci of the 

 whorl. 



Can-cellaria laticostata. PL 2, fig. 8. 

 T. parva, umbilicata, ovata, utrimque acuta, ad suturam constvicta 

 et late, profundeque canaliculata ; anfr. 5, late costatis fult. anfr, 

 1(V, spiraliter distanter valide liratis, longitudinater striatis, striis, 



