Vexillum.] GASTROPODA. 367 



Animal unknown. 



Type in the Dominion Museum, Wellington. 



Hab. North and South Islands ; Stewart Island ; Chatham Is- 

 lands (type). From low- water mark to 25 fathoms. 

 Fossil in the Pliocene. 



6. Vexillum Waitei, Suter, 1909. Plate 18, fig. 8. 



Vexillum Waitei, Suter, Rec. Canterbury Museum, i, No. 2, 1909, 124, 

 pi. 12, f. 3. 



Shell small, fusiform, turreted, with strong axial ribs, rendered 

 slightly nodulous by spiral line, with only 3 columellar folds. Sculpture 

 consisting of strong and sharp spiral threads, 4 on the penultimate 

 whorl, the interstices somewhat broader than the threads, a small 

 and flat thread below the suture ; they are crossed by distant broadly 

 rounded axial ribs, 10 to 11 on a whorl, and they are cut up into broad 

 nodules by the spirals ; they vanish on approaching the base ; growth- 

 lines very fine and crowded. Colour white. Spire elevated conic, 

 turreted, about the same height as the aperture ; outlines slightly 

 convex. Protoconch small, of li smooth whorls. Whorls 4 to 5, 

 distinctly shouldered, lightly rounded below the keel ; base some- 

 what contracted. Suture not much impressed, margined. Aperture 

 high and narrow, angled above, with an open, short, and slightly 

 recurved canal below, its base not notched. Outer lip convex, indis- 

 tinctly angled above, and somewhat contracted below. Columella 

 slightly oblique, with 3 plaits, the lowest a little smaller. Inner lip 

 thin and narrow, forming a very thin layer on the concave parietal 

 wall, drawn out to a long and fine point along the inner edge of the 

 canal. 



Diameter, 2-7 mm. ; height, 6-5 mm. 



Animal unknown. 



Type in the Canterbury Museum, Christchurch. 



Hab. 21 J miles north-east of Wreck Reef, Stewart Island, in 50 

 to 54 fathoms, type (E. R. Waite) ; Snares, in 50 fathoms (Captain 

 Bollons). 



Fam. CKRYSODOMID^l, Cossmann. 



Animal with a rather large foot, truncated in front ; tentacles 

 with the eyes at their outer sides. Radula triserial, lateral teeth 

 with 2 to 4 cusps. 



Shell solid, rather thick, usually with an epidermis ; fusoid, oval, 

 elongated ; protoconch smooth, well developed, with a papillate nu- 

 cleus, which is always tilted ; whorls convex, ornamented by spiral 

 ribs, and sometimes axial costse, which become nodulous in certain 

 genera ; body-whorl ventricose, base excavated ; aperture oval, with 

 or without a posterior channel, produced into a moderately long canal 

 anteriorly, which is always inflected to the right or backwards, ex- 



