273 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY, 
Chrysostoma simulata, Hutton: Cat. Mar. Moll., 1873, p. 36. 
Gibbula simulata, Hutton: Man. New Zealand Moll., p. 102. 
Cantharidus simulatus, Hutton: Proe. Linn. Soc. New South Wales, 
vol. 1x, p. 363. 





Shell conical, imperforate, shining, cinereous, pink or pinkish 
brown, usually with white markings near the suture or tessellate 
with white, sometimes a broad dark-brown band encircling the middle 
of the whorls, and one on the centre of base; finely, spirally striated. 
Whorls 6, slightly convex, the last obtusely angled at the periphery 

Cantharidus dilatatus (Sby.). 
and considerably expanded. Aperture oblique, subrotund; outer 
lip strengthened by an inner, white callosity, interior highly bluish- 
green, iridescent. Columella regularly arched, broadly expanded, and 
completely covering the umbilicus. Base slightly convex. Alt. of 
diam. 8 mm. | 
Hab.—Hokianga; Auckland; Cook Strait; Chatham Is. On sea- 
weeds near low-water mark ; scarce. 
By comparing specimens in the Canterbury Museum, I have satisfied 
myself as to the undoubted identity of Elenchus dilatatus, Sby., with 
Cantharidus simulatus, Hutton. 
23. CanTHARIDUS RUFozona, A. Adams. 
Canthiridus rufozona, A. Ad.: Proc. Zool. Soc., 1851, p. 170. 
Cantharidus rufozona, A. Ad.: Hutton, Man. New Zealand Moll., 
p. 101; Pilsbry, Man. Conch., ser. 1, vol. xi, p- 150. 
Shell globosely conoidal, small, rather thin, imperforate, white or 
cinereous with distant rufous or pinkish brown spiral ribs, 5 on the 
penultimate-, 13 on the body-whorl. Whorls 6, scarcely convex, the 
body-whorl rounded at the periphery. Suture impressed. Interstices 
between the ribs smooth. Aperture subquadrangular, outer lip slightly 
indented, sharp, articulated with pinkish- brown, with an inner opaque 
white band, interior iridescent. Columella vertical, white, slightly 
toothed in the middle ; columellar expansion small, but perfectly filing 
up the umbilicus. Base convex. - Alt. 6, diam. 5mm. 
fab.—Near Auckland. The specimens in my collection were only 
lately collected and given to me by Mr. Charles Spencer, of Auckland. 
I have not seen this species before. 
Pilsbry states, ‘“ Habitat unknown,” but Captain Hutton (1.c.) states 
that he added the species to our list on the authority of Mr. E. A. 
