Hutton. — On neiv Tertiary Shells. 325 



Past II. 



[Read before the Wellington Philosophical Society, 13th February, 1885.] 

 The following new species are chiefly from the collection in the Canterbury 

 Museum, which Dr. von Haast very kindly allowed me to examine. But I 

 have also added a few which I obtained in the Hawke's Bay District last 

 January. 



Tomatellina oralis. 



Shell ovate rather thin, spirally grooved ; whorls 5, rounded ; the two 

 first smooth, the others with smooth spiral ribs much broader than the 

 grooves, which are longitudinally striated ; ribs about 16 on the body 

 whorl, and 6 or 7 on the penultimate whorl. Aperture ovate, pointed 

 behind ; columella with a single strong, sharp, fold about half-way up. 



Length, *17 inch ; breadth, '08 inch. 



Locality. White Bock Biver. 



Ancillaria lata. 



Shell broad, tapering anteriorly ; the spire short and obtuse, covered 

 with a large callus extending over the posterior portion of the body whorl. 

 The rest as in A. australis. 



Length, 1*65 inch ; breadth, "9 inch. 



Locality. Petane and Wanganui. 



Distinguished from australis by its greater breadth and obtuse spire, 

 but there are intermediate varieties. A. hebera, with which it has been 

 confounded, differs in having the sides nearly parallel and the spire 

 longer. 



Voluta aculeata. 



Shell small, fusiform, the spire produced, acute ; whorls 6 (?), longitu- 

 dinally ribbed, the posterior end of each rib rising into a sharp tubercle 

 pointing outwards ; ribs low, rounded, 8 in a whorl ; suture covered up. 

 Aperture rather narrow, the outer lip not reflexed ; columella with four 

 plaits. 



Length, -8 inch ; breadth, -33 inch. 



Locality. "White Bock Biver. 



Voluta kirkii, v. kirki, Hutton, Cat. Tert. Moll., p. 7, 1873. 



Shell ovato-fusiform ; spiral short, acute, the whorls smooth ; body 

 whorl longitudinally subplicate, rounded at the shoulder and narrowing 

 anteriorly ; the plications rising into a row of tubercles below the shoulder ; 

 there are 8 or 9 in a whorl. Aperture moderate, with a posterior callus, 

 Columella plaits not seen. 



Length, 3*5 inch ; breadth, 2-0 inch. Length of aperture, 2-6 inch. 



Locality. Porter Biver. 



