188 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



protoconcli has a fine spiral cord on the sharp angle of the shoulder, 

 the following a second below the carina, and the body-whorl has 

 four cords, of which the two lower ones are closer together and in 

 front of the upper part of the aperture ; they are crossed by equi- 

 distant, straight, thin, axial riblets, about eighteen on the last whorl, 

 extending over the greater part of the base, the interspaces much 

 broader than the riblets, and ornamented with very fine growth -lines. 

 Colour white. Spire conic, gradate, but little higher than the aperture. 

 Protoconch of one and a quarter smooth, convex whorls, the nucleus 

 globose, oblique. Whorls 4, shouldered and prominently keeled, 

 straight above and below the keel ; base contracted. Suture linear. 

 Aperture somewhat oblique, pyriform, very broadly angled above, 

 with an oblique, moderately long, open and truncated canal below. 

 Outer lip strongly convex, lightly angled above, contracted below, 

 crenated on the outside by the spirals, somewhat strengthened by the 

 last axial riblet ; sinus close to the suture, broad and shallow. 

 Columella vertical, concave towards the parietal wall, slightly twisted 

 and drawn out to a narrow ridge towards the margin of the canal ; 

 inner lip very thin, narrow, smooth, spread over the flat parietal wall. 

 Diameter 2-1, height 4-4 mm. 



Hob. — Near the Snares Islands, in 50 fathoms (Captain J. BoUons) ; 

 one specimen only. 



Allied to M. murrhea and infanda, Webst., both of which, however, 

 have a spirally striate base and a short, straight canal. 



Mangilia cophinodes, n.sp. PI. VII, Fig. 22. 



Shell small, elongate oval, white, with traces of a brown spiral band, 

 axially costate and spirally lirate. Sculpture consisting of narrow, 

 rounded, axial costse, about eighteen on the last whorl, getting obsolete 

 on the base ; they are slightly oblique and curved, the interstices of 

 the same width as the riblets ; crossed by spiral cords, with linear 

 interspaces, six on the spire- whorls, about eighteen on the body- whorl, 

 the spirals on the beak much finer ; points of intersection very slightly 

 nodulous. Colour whitish, with a trace of a brown spiral band below 

 the periphery. Spire conical, slightly higher than the aperture ; 

 outlines almost straight. Protoconch conic, of two smooth whorls, the 

 nucleus broadly rounded. Whorls 6, regularly increasing, moderately 

 convex, base contracted. Suture well impressed. Aperture sub- 

 rhomboidal, roundly angled above, with a short, oblique, broad canal 

 below, its base very slightly notched. Outer lip lightly convex, 

 somewhat strengthened on the outside by the last axial rib, smooth 

 inside, with a broad and shallow sinus below the suture. Columella 

 vertical, excavated towards the parietal wall, slightly convex below, 

 bent towards the margin of the canal ; inner lip thin and narrow, 

 smooth. Diameter 3-1, height 7 mm. 



Hah. — Near the Snares Islands, in 50 fathoms (Captain J. Bollons). 



A near ally of this species is the Pliocene M. Hamiltoni, Hutt., 

 which has more prominent smooth axial ribs ; they number only 

 twelve to fifteen on a whorl, and the spirals are mostly inconspicuous 

 and not passing over the ribs, which extend over the whole of the base. 



