Murdoch and Suter. — Results of Dredging. 281 



regularly arched below, sharp. Inner lip forming a well-defined 

 callus on the body, with one or two low tubercles ; columella 

 short, vertical, stoutly caliused and with two strong rounded 

 folds, the lower of which is largest, and forms with the end of 

 the columella a prominent rounded point. Altitude, 4 - 35 mm ; 

 diameter, 2 - 9 mm. 



Type in the Colonial Museum, Wellington. 



Obs. This pretty little species was represented by a fair 

 number of dead shells amongst our dredgings. It is very distinct 

 and rather more thin than usual in this genus. This is the first 

 species of Ringicula recorded from New Zealand waters. 



8. Solidula alba, Hutton. 



Buccinulus albus, Hutton, Cat. Mar. Moll. N.Z., p. 51, 1873. 



A few young and imperfect dead shells, which are exceedingly 

 friable. 



9. Actaeon craticulatus, n. sp. Plate XXI, fig. 6. 



Shell small, oval, whitish, subperforate, cancellated, with a 

 basal fold upon the columella. Sculpture consists of well-im- 

 pressed spiral grooves of rather irregular width, with interstices 

 of nearly the same breadth, though in some specimens they are 

 distinctly broader. This spiral sculpture is very variable. There 

 are subequidistant axial threads cutting up the spiral furrows 

 into oblong squares. Colour of most specimens (all dead shells) 

 white ; a few specimens only show purple coloration on the 

 body-whorl, leaving a white band below the suture. Spire 

 conical, acuminate, less than half the length of the shell. Proto- 

 conch paucispiral, r>ot distinctly separated from the succeeding 

 whorl, lightly corroded in most specimens, nucleus small. 

 Whorls 5, the last of considerable size, slightly angled above, 

 flatly convex, base narrowed and rounded. Suture deep, dis- 

 tinctly canaliculate. Aperture subvertical, elongated-pyriform, 

 produced at the base. Outer lip sharp, very little convex, 

 nearly straight, minutely denticulate, sharply rounded at the 

 base. Inner lip narrow, thin ; columella with a moderately 

 large smooth plait situated at the lower third, slightly exca- 

 vated above, reaching the effuse basal lip in a light curve. A 

 small umbilical chink opposite the tooth. Altitude, 9 mm. ; 

 diameter, 4 - 5 mm. Aperture : length, 5 - 5 mm. ; breadth, 2 mm. 



Type in the Colonial Museum, Wellington. 



Obs. About twenty specimens were obtained. The species 

 is distinguished from A. hirki by the cancellated ornamentation 

 and the smooth columella fold. 



