StJTEU : NEW ZEALAND TTlOCniD.E. 2f)9 



Shell ovatc-couical, deep purple, apex pink ; surface nearly smooth, 

 densely, finely, spirally striate all over. Last whorl rounded, or 

 obtusely angailar. Aperture less than one-half the length of the 

 shell, iridescent within with finer dense folds. Columella subvertical, 

 expanded in a callous pad over the umbilicus. llelative length of 

 spire very variable. Alt. 22, cliam. 16 mm.; alt. 19, diam. 16 mm.; 

 alt. 30, diam. 19 mm. 



Sab. — Auckland Is. ; Campbell Is. 



Var. perohtum, Pilslny. 

 Man. Conch, ser. i, vol. xi (1889), p. 123, pi. xxxiv, fig. 1. 



Spire short, very obtuse at the apex, whorls 5, the last largo, 

 descending anteriorly. Aperture as long as the spire ; other characters 

 as in C. priminus — (Pilsbry). Alt. 20, diam. 19 mm. 



Hah. — Auckland Is. ; Campbell Is. ; Macquarie Is. 



Mr. A. Hamilton, of Dunedin, collected specimens on the latter 

 island ; some are dark-purple, others cinereous. 



18. CANTnAiiiDUS TENEimosus, A. Adams. 



Canthiridus tcnebrosus, A. Ad. : Proc. Zool. Soc, 1851, p. 170. 



Cantharidus tenebrosus, A. Ad. : Hutton, Man. New Zealand Moll., 

 p. 101 ; Hutton, Proc. Linn. Soc. New South Wales, 

 vol. ix, p. ii61 ; (?) Hutton, Trans. New Zealand Inst., 

 vol. xiv, p. 166, pi. vii, fig. L (radula) ; Pilsbry, Man. 

 Conch., ser. i, vol. xi, p. 123, pi. xxxiv, fig. 3, 



Shell conical, elevated, bluish-black or cinereous, 6-7 spiral lira) on 

 the penultimate whorl, 13-16 on the body- whorl, the latter bluntly 

 subangidar at the periphery. Columella covering the umbilicus. 

 Alt. 11"5, diam. 9-5 mm. 



Mab. — Throughout New Zealand. On seaweeds. 



Var. JTuttonii, E. A. Smith. 



Trochus ( Cantharidus) Ilidtonii, E. A. Smith : Jouni. Linn. Soc, (Zool.) 

 vol. xii (1876), p. 558, pi. xxx, fig. 20; Hutton,' Man. 

 New Zealand Moll., p. 100. 



Cantharidm fenehrosiis var. Iluttoni : Hutton, Proc. Linn. Soc. New 

 South AVales, vol. ix, p. 362 ; Hutton, Trans. New Zealand 

 Inst., vol. xiv, p. 165, pi. ^■ii, fig. M (radula); Pilsbry, 

 Man. Conch., ser. i, vol. xi, p. 123, pi. xxxiv, fig. 2. 



Gibbula plumbta, Hutton: Journ. d(; Conch., 1878, p. 33. 



Shell short, conical, bluish-black, 8-1 1 spiral lira) on tlie penultimate-, 

 17-20 on the body-whorl. Columella covering the umbilicus. Alt. 9, 

 diam. 7 mm.; alt. 14-5, diam. 105 mm. ; alt. 15, diam. 13 mm. 

 (specimen from Dunedin). 



Hab. — The same as the type, but more plentiful. 



