334 PEOCEEDINGS OF THE MALACO LOGICAL SOCIETY. 



umbilicus. Colour pale horny, with faint rufous radial streaks of 

 different width, extending over the base. Epidermis thin, slightly 

 shining. Spire conoidal, convex, of about the same height as the 

 aperture. ProtoconcJi of 1^ smooth whorls, obtuse. Whorls 5, 

 regularly increasing, lightly convex, periphery angled ; base 

 convex. Suture not much impressed. Aperture slightly oblique, 

 sub-quadrangular. Peristome simple, acute. Columella short, sub- 

 vertical, a little reflexed. Umbilicus narrow, open, one-eighth of the 

 greatest diameter. Height 2 '8, diam. 4 mm. 



Dentition unknown. 



Type in my collection. 



Hah. — Woodhaugh, Otago (Mr. G. W. Howes), One specimen. 



Laoma (Phrixqnathus) gracilis, n.sp. 



Shell minute, depressed globose, umbilicated, almost smooth, thin, 

 somewhat shining, pellucid, uniformlj' horn-colour. Sculpture con- 

 sisting of fine irregular growth-lines and very fine microscopic spiral 

 striae, the last whorl being faintly and somewhat irregularly radially 

 plicated. Colour greenish horn-colour. Spire conoidal, the height 

 slightly more than that of the aperture. ProtoconcTi obtuse, smooth. 



of \\ volutions. Whorls 4^, the last large in proportion, convex; 

 base rounded. Suture well impressed. Aperture somewhat oblique, 

 broadly lunate. Peristome acute, thin, the margins faintly converging. 

 Columella short, oblique, nearly straight, slightly reflexed. Umbilicus 

 moderate, open, deep, about one-seventh of the greatest diameter. 

 Height 1"5, diam. 2'3mm. 



Dentition unknown. 



Ti/pe in mj' collection. 



JIab. — Woodhaugh, Otago (Mr. G. W. Howes). One specimen. 



This species stands nearest to L. virtdula, Suter, which, however, 

 is imperforate. 



