Trophon.] GASTROPODA. 419 



tracted above the canal. Suture well impressed, the varices passing 

 across it. Aperture somewhat oblique, oval, biangulate above, with 

 a short slightly oblique and recurved open canal. Outer Up sharp, 

 prominently angled above, a little strengthened by the last varix, 

 smooth inside. Columella subvertical, straight, twisted and tapering 

 below. Inner Up very thin and narrow, polished, spreading over the 

 lightly excavated parietal wall, narrowed below to a fine point. Oper- 

 culum unknown. 



Diameter, 1-9 mm. ; height, 4 mm. 



Animal unknown. 



Type in my collection. 



Hab. Near the Snares, in 50 fathoms, type (Captain Bollons) ; 

 21^ miles north-east of Wreck Reef, Stewart Island, in 50 to 54 fathoms 

 (E. R. Waite) ; twenty-four miles south-east of Long Point, in 120 

 fathoms (E. R. Waite). 



Remark. Allied to the Pliocene T. Goitldi, Cossmaim (= crispus, 

 Hutton. not of Gould), which, however, is a larger shell, with much 

 less axial costse, more spirals, and the outer lip strongly dentate 

 within. 



17. Trophon pusillus, Suter, 1907. Plate 19, fig. 10. 



Trophon pusillus, Suter, T.N.Z.I., xxxix, 1906 (1907). 253, pi. 9, f. 2 ; 

 Iredale, T.N.Z.I., xl, 384. 



Shell small, fusiform, fairly solid, imperforate, with nodulous 

 varices. Sculpture formed by spiral ribs and varices, produced into 

 oval nodules at the points of intersection ; there are 11 varices on 

 the last whorl, reticulating the spiral sculpture ; 2 spirals on the 

 upper whorls succeeding the protoconch, 3 on the penultimate, and 

 10 on the last whorl : from the base of the fourth whorl minute and 

 close radiate striae are beginning to ornament the whole surface, most 

 of the nodules, however, remaining partly smooth. Colour yellowish- 

 white. Spire conical, a little shorter than the aperture with canal. 

 Protoco'tich mammillate, smooth, consisting of 3 strongly convex 

 whorls. Whorls 6, lightly shouldered, base concave. Suture im- 

 pressed, undulate. Aperture elongately pyriform. produced into a 

 comparatively long canal, which is subtruncate and slightly deflexed 

 to the right. Outer lip thin and sharp, crenulated by the spiral sculp- 

 ture. Columella vertical, straight, obliquely truncate below, ter- 

 minating in a sharp point on reaching the left margin of the canal. 

 Inner lip forming a rather narrow callosity, with a longitudinal furrow 

 parallel to the margin on the outer side. Operculum unknown. 



Diameter, 3-5 mm. ; height, 6 mm. 



Animal unknown. 



Type in the Dominion Museum. Wellington. 



Hob. Near Channel Island, Hauraki Gulf, in 25 fathoms (type) ; 

 near Cuvier Island, in 38 fathoms (Captain Bollons) ; Lyttelton Har- 

 bour (Iredale). 



14 



