84 Transactions. 



subangled a little below the sutures, the latter deeply impressed. Sculpture 

 consists of about seventeen rounded and slightly inclined - forward axial 

 ribs, extending across the base and rather narrower than the interspaces ; 

 these are crossed by fine spiral threads which form minute granules on the 

 crossings, a stronger and more distinctly nodular cord on the subangle and 

 a similar cord margining the sutures ; there are about five spirals on the 

 penultimate whorl. Aperture imperfect (outer -lip broken), columella nearly 

 vertical, callused and with a stout plate above the middle. 



Length, 3 mm. ; width, 1 mm. Aperture slightly more than one-third 

 of the total length. 



Locality : Target Gully. Collected by Marshall. 



Type to be presented to the Wanganui Museum. 



Closely allied to 0. rugata Hutton, from which it differs in its narrower 

 form, slight but distinct nodular angle below the sutures, and the absence 

 of a pronounced cord on the base ; in 0. rugata the basal cord is apparently 

 always present, although the axials are frequently extended below it. 



Turbonilla awamoaensis n. sp. (Plate XIX, fig. 6.) 



Shell small, subulate, whorls ten, protoconch missing, flattened or slightly 

 concave below the sutures, thence convex ; sutures slightly impressed and, 

 on the lower whorls, with one or two fine spiral threads above ; whorls 

 strongly axially ribbed, about fourteen ribs on the penultimate, including 

 an occasional broader varex, the axials narrower than the interspaces, 

 slightly flexuous and with a subnodular appearance immediately below the 

 sutures, absent on the base ; the last with a number of small undulating 

 spiral threadlets towards the base, obsolete on approaching the columella ; 

 aperture oval, the basal lip slightly effuse, columella slightly curved, narrowly 

 and stoutly callused. 



Length, 10 mm. ; width, 2-75 mm. 



Locality : Awamoa. Collected by Marshall. 



Type to be presented to the Wanganui Museum. 



The sculpture readily distinguishes it from our other Tertiary forms. 



Eulima aoteaensis n. sp. (Plate XIX, fig. 7.) 



Shell small, subulate, straight, and highly polished ; varices very indis- 

 tinct without sculpture excepting the microscopic growth-lines ; whorls 

 eight or nine, almost flat, the sutures oblique and very lightly impressed ; 

 the aperture about one-third of total length ; the apical whorl missing, 

 the next a little more rounded than the succeeding whorls, the last narrow- 

 ing and slightly produced at the anterior end ; aperture slightly oblique, 

 very narrow above, lip almost straight, base rounded and slightly effuse ; 

 the columella almost straight, with a well-defined callus slightly spreading 

 on the middle area and narrowing to the anterior end. 



Length, 6*5 mm. ; width, 1-25 mm. ; length of aperture, 2 mm. 



Locality : Target Gully. Collected by Marshall. 



Type to be presented to the Wanganui Museum. 



This species had been submitted to Suter, and is labelled by him 

 " Eulima n. sp." The form of the aperture, together with the length of 

 the last whorl, appears to distinguish it from other New Zealand species. 



