66 Transactions. — Zoology. 



Genus Drillia, Gray (1838). 

 Shell turriculated, with longitudinal ribs and usually re- 

 volving striae ; last whorl usually short ; spire elevated ; colu- 

 mella with a posterior callus ; outer lip thick, but not varicose 

 nor dentate within, flexuous, with a well-marked posterior 

 sinus near (but not reaching) the suture, and an anterior con- 

 striction or sinuosity ; canal short, curved, usually narrow. 



Key to Species. 



1. Shell without distinct spiral lyrse . . .. D. Icevis. 



2. Shell with distinct spiral lyrse .. .. D. avicena. 



Drillia Isevis, Button. 



Hutton, Cat. Mar. Moll, of N.Z., p. 12 (1873) ; Man. N.Z. 

 Moll., p. 44 (1880) ; Pliocene Moll, of N.Z., Macleav 

 Mem. Vol., p. 51, pi. vii., fig. 32 (1893). 



Shell fusiform, the spire longer than the body- whorl. 

 Whorls smooth, with longitudinal plications, about fourteen 

 on the last whorl, pale yellow-brown with a central spiral band 

 of pink. Aperture oval ; canal short and straight ; sinus deep ; 

 mouth and columella white, shading off into pink. Animal 

 unknown. 



Length, 18 mm. ; breadth, 7mm. ; angle of spire, 30°. 



Type in the Colonial Museum, Wellington. 



Ilab. Foveaux Strait. Found also in the Pliocene of New 

 Zealand. 



Drillia (?) amoena, E. A. Smith. 



Smith, Ann. Mag. Nat. Hist. (5), vol. xiv., p. 318 (1884). 



Shell fusiform, light flavescent, with a white band en- 

 circling the wdiorls ; eight convex volutions, the first two 

 smooth, the others longitudinally costate ; 18 ribs on the last 

 whorl, not continuing below the periphery ; spirally lyrate, 

 the lyrse forming nodules on crossing the ribs, 5 to 6 lyrae on 

 the upper whorls, about 15 on the last, fev»^ without nodules 

 at the base. Aperture two-fifths of the whole length of the 

 shell; canal narrow, but little produced. 



Length, 14 mm. ; breadth, 5 mm. 



Type in the British Museum (Nat. Hist.). 



Hab. New Zealand. 



Two of the spiral lyrations a little below the suture are 

 finer than the others. The whorls are markedly convex, and 

 the apical ones are large. (E. A. S.) 



I have not seen this species. 



Genus Spiroteopis, Sars (1878). 

 Shell turriculated, rather thin ; apex obtuse ; whorls cari- 

 uated ; sinus profound, distant from the suture. Operculum 

 normal. Dentition very distinct ; formula, 1 — 1 — 1 — 1 — 1. 



