. | GASTROPODA. 373 



and a protracted canal. Sculpture : Axials there are on each whorl 

 10 ov 12 short oblique riblets, which do not extend to either suture. 

 and are rather Hattish elongated tubercles than ribs ; they are parted 

 by shallow open furrows ; down the spire they become feebler, and 

 all but disappear on the last whorl ; besides these riblets there are 

 numerous coarsish lines of growth. Spirals the surface is scored 

 with distinct equal flat threadlets, pretty equally parted by flat shallow 

 furrows three times their width ; there are 9 or 10 on the penultimate 

 whorl : they are absent immediately below the suture. Colour white, 

 but the shell is bleached. Spire high, subscalar conical, nearly as 

 high as the aperture with canal ; outlines straight. Protoconch small, 

 mamillary. the nucleus immersed, of 2| smooth rounded whorls. 

 Whorls 8|, shouldered, slightly concave below the suture, very little 

 contracted into the lower suture, the last elongated and rounded ; 

 base long, contracted, concave. Suture linear, in a broad open de- 

 pression. -Aperture oval, oblique, bluntly pointed above, with an 

 open, very oblique, longish canal in front. Outer Up strong and blunt. 

 very feebly scored within, with long narrow teeth ; from its insertion 

 it retreats very much, here it is flattish ; in the middle it runs straight 

 in the line of the axis. ColumeUn concave to the beginning of the 

 canal, where it is angulated and has a, twisted keel. Inner lip forming 

 a thin glaze on the parietal wall, continued at the side of the canal. 

 Op&rculii/m unknown, (Watson.) 



Diameter, 22mm. ; height. 50-8 mm. (type). 



Animal unknown. 



Type in the British Museum. 



Hab. Two hundred miles west of Cape Farewell, in 275 fathoms : 

 Otago Peninsula, a dead shell (Iredale). 



Remarks. This species is like the young of S. mandarina. but i.< 

 narrower and more compact, wants the intermediate spiral threadlets. 

 and has a much smaller protoconch. 



Genus 2. EUTHRIA. Gray, 185<). 



Entliria, Gray, Fig. Moll. Anim., iv, 1850. (57. Type : Mnn.r content. L. 



Animal with the eyes near the outer bases of the tentacles. Central 

 tooth of radula with 3 or 5 cusps, lateral teeth with 3 cusps, the median 

 cusp shorter than the others. 



Shell solid, moderately large, fusiform, more or less ventricose : 

 spire rather high, conic or subconoidal ; protoconch smooth, pauci- 

 spiral. the nucleus papillate and slightly tilted ; whorls convex below. 

 depressed below the suture, always costulate at the apex, the last whorl 

 about two-thirds of the total height ; aperture ovate, with a narrow 

 channel above, rapidly contracted below, with long recurved canal ; 

 outer lip sinuated above, lirate within ; columella sinuous, convex 

 in the middle, with a plait or ridge below. Operculum oval, oblong, 

 sliofhtlv arched, acuminated, with apical nucleus. 







