188 Gatlif and Gabriel: 



circling incised lines are discernible, that at the periphery of 

 the body whorl being well defined. Suture incised. Mouth 

 ovate. Outer lip sharp. Inner lip slightly everted. There is a 

 moderately strong ascending columellar-plait, situated well 

 within the mouth. 



Dimensions of Type. — Length, 7 ; Ijreadth, 2.60 mm. 



Locality. — Port Albert (Thos. Worcester). 



Ohs. — A thin vitreous shell of a regularly tapering form. 



Type in Mr. Gatliff s collection. 



Turbonilla portseaensis, sp. nov. (PI. XLVI., Fig. 1). 



.Shell milky-white, solid, imperforate. Sutures well defined. 

 Whorls nine, including a produced, two-whorled, heterostrophe 

 protoconch. They are rounded, slightly shouldered, straightly, 

 longitudinally ribbed, the penultimate bearing about twenty- 

 two. These ribs are prominent, shining, just project at the 

 shoulder, and continue to the base, where they cross a faint 

 carination, gradually vanishing as they approach the columella. 

 Tliey are separated by deep interstices of similar breadth. 

 Close, uniform, interstitial, spiral striation further ornaments 

 the whorls. The basal interstices are similarly striate, the 

 striae of base and body-whorl being more numerous than those 

 on the preceding whorls. Aperture ovate, inner lip slightly 

 reflected. Outer lip acute. 



Dimensions of Type. — Length, 4.5 : breadth, 1.5 mm. 



Locality. — Portsea (type) ; Shoreham. 



Ohs. — A graceful form, milky-white colour, and ornate sculp- 

 ture. The interstitial striation serves as a useful recognition 

 mark, and in this respect somewhat recalls Oclostomia Ja-e/ffi, 

 Ang. 



Type in Mr. C. J. Gabriel's collection. 



Jeffreysia wilfredi, sp. nov. (PI. XLVI., Fig. 3). 



Shell oblong-ovate, white, vitreous, thin, smooth, transparent. 

 The axial pillar may be plainly seen. Whorls four, tipped with 

 a broad, dome-shaped apex ; they are ventricose, and rapidly in- 

 crease, the body-whorl occupying about three-fourths of the 



