368 Transactions. 



height of the aperture ; outlines straight. Protoconch minute, 

 heterostrophe, globular. Whorls 5, regularly increasing, flatly 

 convex, the last not angled ; base flattish. Suiure impressed. 

 Aperture slightly oblique, angled above and narrowly produced 

 below. Outer lip regularly rounded, thin s-nd sharp. Colu- 

 mella subvertical, almost straight, with a minute plait above ; 

 inner lip extending a short distance beyond the pillar, and as 

 a thin layer over the parietal wall. 



Diameter, 1-5 mm. ; height, 3-3 mm. 



Type in my collection. 



Hah. — Port Pegasus, Stewart Island, in 18 fathoms (Captain 

 Bollons). 



Remarks. — This species is nearest allied to 0. impolita, Hutt., 

 but it is smaller, more slender, and the spiral sculpture is much 

 more distinct. The fossil 0. fasciata, Hutt., is also very similar, 

 but has a differently arranged sculpture and an open umbilicus. 

 Button's name, dating of 1885, being preoccupied by Dunker, 

 1860, I propose the name 0. huttoniioi it. 



16. Eulima truncata, n. sp. Plate XXIX, fig. 17. 



Shell very small, subcylindrical, thin and polished, semi- 

 transparent, straight. There is no sculpture and no varices. 

 Colour white. Spire very narrowly conic, a little more than 

 twice the height of the aperture ; outlines straight. Protoconch 

 high, obtusely rounded. Whorls 5, regularly increasing, flat ; 

 base flattish, elongated. Suture linear, superficial, false- 

 margined below. Aperture subvertical, lanceolar, high and 

 narrow, sharply angled above and acuminate below. Outer lip 

 straight above, rounded towards the base, thin and sharp. 

 Columella short, truncated at the base ; parietal wall slightly 

 concave. 



Diameter, 1 mm. ; height, 3 mm. 



Type in my collection. 



Tlab. — Cape Maria van Diemen (Captain Bollons). 



Remarks. — No doubt the specimen is not full grown. 



17. Eulima titahica, n. sp. Plate XXIX, fig. 18. 



Shell small, subulate, slightly curved, semitransparent, 

 polished, with a few discontinuous and inconspicuous varices. 

 Sculpture consisting of a few indistinct varices and faint growth - 

 lines. Colour white. Spire somewhat curved to the right, 

 narrowly conic, three times the height of the aperture. Proto- 

 conch globular, obtuse. Whorls 7, regularly increasing, flatly 

 convex ; base rounded. Suture linear, not much impressed, 

 false-margined below. Aperture pyriform, angled above, 

 .-slightly effuse below. Outer lip but slightly curved, thin and 



