Hutton. — On new Tertiary Shells. 817 



Clathurella (?) nexilis. PI. xviii., fig. 9. 



Shell minute, fusiform, cancellated. Whorls 6, the two first embryonic, 

 polished ; the others angled. Those of the spire with a prominent spiral 

 keel crossed by rather oblique and rather distant spiral threads, forming an 

 obtuse angle on the keel. Suture margined. Body whorl with 8 or 9 

 spiral ribs, the first and third larger than the others ; all after the sixth very 

 close together on the canal ; these are crossed by rather distant longitudinal 

 lines which form a very obtuse angle on the first spiral rib or keel ; aperture 

 less than half the length of the shell, rather constricted and angled behind ; 

 columella straight, produced into a short canal. 



Length, *17 inch. 



Locality. Wanganui and Petane. 



Apparently near to C. tricarinata, Val., perhaps it should be considered 

 as a species of Drillia. 



Daphnella protenm. 



Shell elongato-fusiform, with the spire longer than the body whorl, 

 rather thin. Whorls 7, the first 2i embryonic ; the others ornamented with 

 delicate spiral threads crossed by growth-lines ; those of the spire rounded 

 more or less longitudinally plicated ; about 15 plications in a whorl. Suture 

 well marked. Aperture oval, the anterior canal broad and short ; posterior 

 sinus small but well marked and giving rise to a series of curved growth- 

 lines on the posterior portion of each whorl. 



Length, -33 inch ; breadth, -1 inch. Aperture, "15 inch. 



Locality. Petane. 



Daphnella lacunosa. 



Shell minute, sub-fusiform. Whorls 5, the first two embryonic, polished; 

 the others slightly rounded, with strong spiral ribs at equal distances. Spire 

 whorls with 3, body whorl with 10 or 12 of these ribs ; the grooves are rather 

 broader than the ribs and are smooth or very slightly longitudinally striated. 

 Suture well marked. Aperture ovate, about half the length of the shell ; 

 the posterior sinus obsolete : anterior canal short ; outer lip thin. 



Length, -18 inch. 



Locality. Wanganui. 



Natica ( Ampullina) Icevis. PI. xviii., fig. 10. 



Shell sub-globose, transverse, smooth, without any spiral markings. 

 Whorls 4, the two first polished. Aperture broadly ovate, rounded in front; 

 columella curved, the callus covering the umbilicus. 



Length, -78 inch ; breadth, *9 inch. Aperture, length, -67 inch ; 

 breadth, -5 inch. 



Locality. Wanganui and Petane. 



