BY PROFESSOR F. W. HUTTON, F.G.S. 363 



Shell imperforate spirally grooved. Pinkish white, with red 

 spots on the ribs, or with red flexuous longitudinal markings ; 

 interior and mouth white. 



Variety, c^latus. Hutton, (1884). 

 Habitat. — Foveaux Straits. 



Smaller but more deeply ribbed and the grooves wider. 

 I have seen dead specimens only. The dentition is unknown. 



Cantharedus dilatatus. Sowerby Proc. Zool. Soc. of London, 

 1870, p. 251, (Eleuchns). 



Habitat. — Hokianga, Auckland. 



Shell smooth, spirally striated ; whorls flattened ; columella 

 without any tooth. Reddish brown, the interior greenish blue 

 and highly iridescent. 



The dentition is unknown. 



Cantharidus smglatgs. Hutton, Cat. Marine Moll, of New 

 Zealand, p. 36, (1873). 



Habitat. — Chatham Islands. 



Shell smooth, finely spirally striated ; whorls convex. Pink or 

 pinkish brown, generally with white markings on the spire ; 

 interior bluish white, iridescent. 



Dead specimens only. The dentition is unknown. 



Genus. Margarita. Leach. 



I put the following three species into this genus with great 

 hesitation. Perhaps they belong to Gibbula, but the umbih'cus 

 is narrow. 



Margarita antipoda. Hombron and Jacquinot, Voy. Pole Sud., 

 Zool. V., p. 58, pi. 14, figs. 26-28 (1854). 



Habitat. — Auckland Islands. 



Shell small, iridescent, with transverse bands of greenish on 

 the upper part ; umbilicus almost covered. 



I have not seen this species. The dentition and operculum are 

 unknown. 



