178 



DESCEIPTIONS OF NEW SPECIES ' OF NEW ZEALAND MARINE 



SHELLS. 



By Henkt Sutee. 



Eead I2th June, 1908. 



Trophon (Kalydon) columnaris, n.sp. PI. YII, Fig. 1. 



Shell very small, fusiform, turreted, thin, with a sharp spire, very 

 strong axial ribs, and distant spiral cords. Sculpture consisting of 

 distant, high, and rounded axial ribs, obsolete on the shoulder and the 

 lower part of the base, about nine on a whorl, crossed by rather distant 

 spiral cords, absent upon the shoulder, three on the spire- whorls, and 

 about nine on the body- whorl, the lowest of which is more prominent ; 

 they pass over the axial ribs, usually without becoming nodulous. 

 Fasciole not very well marked. Colour fulvous, rarely with a white 

 band below the angle of the whorls ; aperture light brown within. 

 Spire elevated, conic, turreted, of the same height as the aperture with 

 canal. Protoconch small, papillate, of one and a half smooth and convex 

 whorls, the globose nucleus slightly excentric. Whorls 6, regularly 

 increasing, with a narrow concave shoulder, convex below; base 

 contracted above the canal. Suture not deep, undulating. Aperture 

 oblique, narrowly oval, broadly angled above, produced below into 

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

 strengthened by an axial rib, angled above, smooth inside. Columella 

 vertical, straight, twisted and narrowed below ; inner lip thin and 

 narrow, spreading over the lightly excavated parietal wall, narrowed 

 below. There is no umbilical fissure. Operculum unknown. Diameter 

 4-3, height 8-3 mm. 



S^ab. — Near the Bounty (type) and Snares Islands, in 50 fathoms 

 (Captain J. Bollons). 



This shell has the aspect of a miniature of T. Paiva, Crosse ; the 

 axial sculpture, however, is bolder, and the spirals are more distant 

 and much less numerous. 



Trophon (Trophonopsis) ceispulatus, n.sp. PI. VII, Fig. 2. 



Shell very small, fusiform, turreted, very thin, white, translucent, 

 reticulated by numerous axial crispate varices and a few spiral lirse. 

 Sculpture consisting of close, fine, and sharp varices, usually twenty 

 to twenty-five on a whorl, but occasionally their number is reduced to 

 about fifteen ; they are either straight or strongly crispate lamellae, 

 retractive on the shoulder, but vertical below it ; on the base they 

 extend as fine striae upon the neck of the canal ; they are reticulated 

 by distinct spiral threads, sometimes, however, inconspicuous, the 

 points of crossing raised into sharp, short spines ; the spire-whorls with 

 three spirals, the first carinating the shoulder, body-whorl with five 

 cingula, the lower part of the base without spirals, the interstice 

 between the first and second spiral is always broader than the 



' The types of all these species are iu my own collection. 



