Hutton. — On new Tertiary Shells. 315 



Length, -5 inch ; breadth, '17 inch. Length of aperture, '25 inch. 



Locality. Petane. 



Turrieula planata. PL xviii., fig. 3. 



Shell ovato-fusiform, the spire acute, but not so long as the body whorl. 

 Whorls 7, the first 1^ embryonic, translucent, polished ; the others flattened, 

 distantly longitudinally ribbed and obscurely spirally striated. About 12 

 or 13 ribs in a whorl. Aperture narrow, the right lip not thickened ; 

 columella with four plaits. 



Length, '56 inch ; breadth, -24 inch. Aperture, *29 inch. 



Locality. Wanganui. 



Eelated to T. microzonias, Lam. 



Turrieula marginata. PI. xviii., fig. 4. 



Shell ovato-conical ; the spire acute, longer than the body whorl. 

 Whorls 6£, the first 1^ embryonic, smooth, polished ; the next 4 or 5 with 

 about 14 longitudinal ribs on each whorl, which are crossed by fine spiral 

 striae. Suture margined. Body whorl finely spirally striated with obsolete 

 longitudinal ribs. Aperture narrow, contracted in front ; the columella 

 with four plaits. 



Length, *3 inch; breadth, "1 inch. 



Locality. Wanganui. 



Siphonalia (?) cingulata. 



Shell small, rather thin, fusiform, the spire acute but shorter than the 

 body whorl, not nodose nor ribbed. Whorls 5, the first two embryonic, 

 smooth, usually sharply-shouldered ; the others rounded, finely spirally 

 striated and delicately marked with growth-lines. Suture impressed. 

 Aperture oval, the right lip thin ; anterior canal short, nearly straight. 



Length, '55 inch ; breadth, '25 inch. Aperture, -32 inch. 



Locality. Wanganui. 



A distinct species which should, perhaps, be placed in a new genus. 

 Cominella elongata. PL xviii., fig. 5. 



Shell elongated, the spire acute and much longer than the aperture. 

 Whorls 8, the first 2-| embryonic, polished ; the next 3 or 4 with about 10 

 or 11 longitudinal ribs ; the rest smooth. The spiral sculpture is five spiral 

 lines, and, after the fourth or fifth whorl, some distant shallow grooves, of 

 which there are about 9 on the body whorl. Aperture ovate, the posterior 

 canal small but well marked ; the anterior end deeply notched. 



Length, 1-25 ; breadth, -5 inch. 



Locality. Wanganui. 



Terebra costata. PL xviii., fig. 6. 



Shell turreted, smooth, polished, rather thick. Whorls 10-12 ; the 

 first 2| embryonic ; the others longitudinally ribbed ; about 11-15 ribs on 



