520 GASTROPODA. \0pisthobr ancUa. 



Hab. North Island of New Zealand : Whangaroa Harbour ; Bay 

 of Islands ; Omaha, type of S. Kirlti (T. Kirk) : Waikanae, type of 

 S. Huttoni (T. W. Kirk). 



The species has a, very wide distribution : China Seas : New 

 Ireland ; Borneo ; Philippines (Curaing) ; Port Jackson (" Chal- 

 lenger ") ; Darn ley Island, Torres Strait (Brazier) ; Moonta Bay, 

 South Australia (Tate), according to the Man. Conch. 



2. Pupa alba, Hutton, 1873. Plate 22, fig. 23. 



Buccinulus nlbus, Hutt,, C.M.M., 51 : J. de Conch., 1878, 40 ; M.N.Z.M., 

 119. Tornatella alba, Hutt,, Plioc. M., 37, pi. 6, f. 2. Solidula alba, Hutt., 

 Man. Conch. (1). xv, 146, pi. 18, f. S>4 ; Harris, C. Tert, M.B.M., i, 8; 

 Index, 69 ; Murdoch and Suter, T.N.Z.L, xxxviii, 281. 



Shell elongately ovate, white, finely spirally lirate, the interstices 

 with fine axial threads. Sculpture consisting of numerous somewhat 

 unequal flat spiral lirse, the interstices of about the same width, 

 ornamented with axial fine threads. Colour white. Spire conic, a 

 little lower than the height of the aperture ; outlines slightly convex. 

 Protoconch minute, of 1^ smooth whorls, the nucleus somewhat tilted. 

 Whorls 7, first slowly increasing, the last very large, flattish : base 

 flatly convex. Suture distinct, not deep. Aperture subpyriform. very 

 narrow above, widened and rounded below. Outer lip vertical, thin 

 and sharp. Basal lip regularly rounded. Columella with a strong 

 oblique lightly bifid fold, with a narrow deep groove towards the 

 convex parietal wall, which bears a fine sharp spiral fold on its lower 

 part. Inner lip distinct, narrow, well limited, extending over the 

 parietal wall. Operculum unknown. 



Diameter, 3-8 mm. ; height, 9 mm. (type). Diameter, 5-5 mm. ; 

 height, 12 mm. 



Animal unknown. 



Type lost. 



Hab. Hauraki Gulf : off Great Barrier Island, in 110 fathoms ; 

 five miles south of Cuvier Island, in 38 fathoms (Captain Bollons) ; 

 Stewart Island. 



Fossil in the Pliocene. 



3. Pupa gracilis, T. W. Kirk, 1882. Plate 22, fig. 2-t. 



Buccinulus gracilis, T. W. Kirk, T.N.Z.L, xiv, 1881 (1882), 268. Solidula 

 gracilis, T. W. Kirk, Man. Conch. (1), xv, 146 ; Index. 70. 



Shell elongately oval, rather thin, with a high spire, white, spirally 

 sulcated. Sculpture consisting of crenate spiral grooves, nearly equi- 

 distant on the spire-whorls, 6 on the penultimate whorl, the inter- 

 spaces much broader and flat ; on the body-whorl they are subequi- 

 distant on the first half of the volution, but on the second half the 

 median interspaces are becoming grooved, giving that part of the 

 shell a finely spirally grooved appearance ; at the base again the 

 grooves are closer together ; the whole of this sculpture is crossed by 



