226 Transactions. — Zoology. 



Fam. Mitridce. 



Shell fusiform, thick, the spire well developed ; columella obliquely 

 plaited, the posterior plaits larger. Operculum small or absent.-* 

 Genus Turricula, Klein. 



Shell longitudinally plicately ribbed ; spire acuminate ; aperture nar- 

 row ; columella with numerous plaits. 



The lateral teeth are said by Dr. Gray to be versatile, with a single cusp, 

 in which case the genus should be referred to the Olivida. 

 Sub-genus Pusia, Swainson. 



Shell small, ovate ; spire usually short, convex, with an obtuse apex ; 

 outer lip sometimes thickened. 



Tubricula eubiginosa, Hutton, Cat. Marine Moll, of N.Z., p. 20 (1873), 

 [not Mitra rubiginosa, Eeeve] . 



Hab. Auckland to Stewart Island; Chatham Islands. 



Smooth, longitudinal plications sometimes obsolete on the body-whorl. 

 Purplish brown, with a dark purple spiral band in the centre of the body 

 whorl ; columella orange red. 



Allied to T. rubra, Swainson, from the Paumotu Islands, but, I think, 

 quite distinct. 



The dark band is sometimes absent, and the shell may be brown or 

 purple, but the columella is always red. Dead rubbed shells are often rosy 

 or purplish. 



Specimens from Auckland may be a distinct species as they appear to 

 be spirally grooved ; but I have only seen dead and discoloured shells. 



The operculum and dentition are unknown. 

 Fam. Fasciolarida. 



Shell more or less fusiform, without varices ; outer lip not thickened. 

 Eyes usually at the outer bases of the tentacles. Operculum always 

 present. f 



Sub-fam. Fusina. 



Columella not plicate nor tortuose. 



* Species omitted as not really inhabiting New Zealand. 



Mitra aurantia, Gmelin. Inhabits the Indo-Pacific Province. 

 Mitra abbreviata, Sowerby. Habitat unknown. 

 Mitra chrysalis, Eeeve. Inhabits Polynesia. 

 Mitra obscura, Hutton. Inhabits Polynesia (?). 

 Turricula rubra, Swainson. Inhabits Paumotu Islands. 

 Cylindra nucea, Gronovius. Inhabits Polynesia. 



t The following species are omitted as not really inhabiting New Zealand : — 

 Fasciolaria trapezium, Linne. Inhabits Indian Ocean. 

 Peristernia zealandica, Adams. Inhabits Indian Ocean. 

 Peristernia decorata, Adams. Inhabits Andaman Islands. 



