280 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



the t-^0 uppermost beaded. Umbilicus one-third of base, tunnel- 

 shaped, penetrating" to the apex, its sides excavated on each whorl, 

 the verge of which is crenulated. Aperture nearly circular. Alt. 5-5, 

 diam. 7 mm. 



Hub. — Bay of Islands ; near Auckland, in sandy places, below low- 

 water mark ; not common (T. F. Cheescmau). 



Genus CALLIOSTO^A, Swainson, 1840. 



36. Calliostoha spectabile (A. Adams). 



Ziziphinus spectahilis, A. Adams: Proc. Zool. Soc, 1854, p. 37, 

 pi. xxvii, fig. 7 ; Hutton, Man. New Zealand Moll., p. 98 ; 

 Proc. Linn. Soc. New South Wales, vol. ix, p. 360. 



Calliostoma spcctahilis, Pilsbry : Man, Conch., ser. i, vol. xi, p. 332, 

 pi. xvi, fig. 12. 



Shell large, imperforate, conical, flesh-coloured or yellowish, dotted 

 with pink on the spiral ribs, which are coarsely granose, about 7 on 

 the penultimate whorl, about 8 on the base. Whorls 6, nearly flat, 

 the last obtusely angled at the periphery ; base rather flattened. 

 Aperture rounded-quadrangular. Columella pearly, arcuate. Um- 

 bilical region without any callus. Alt 35, diam. 37 mm. 



Ilah. — Auckland; Auckland Is. {fide Von Martens); Chatham Is. 

 {fide Pilsbry). A rare shell. 



37. Calliostoma Tigris (Martyn). 



Troclms tigris, Martyn: Univ. Conch., vol. ii (1784), pi. Ixxv; Gmelin, 



Syst. Nat., 13th ed., p. 3585, No. 128. 

 Granatum, Chemnitz: Conch. Cab., vol. v, p. 100, figs. 1654, 1055. 

 Zlziphmus granatum (Chemn.) : Hutton, Man. New Zealand Moll., 



p. 98 ; Proc. Linn. Soc. New South Wales, vol. ix, p. 360. 

 Calliostoma tigris, Pilsbry : Man. Conch., ser. i, vol. xi, p. 333, 



pi. xli, fig. 30. 



Shell large, conical, imperforate, light-yellowish, longitudinally 

 painted with numerous irregular reddish-chestnut stripes. Delicate 

 finely beaded spiral lira?, 16-20 on the penultimate whorl, 18-25 ou 

 the upper surface of the body-whorl. Spire elevated, concave above. 

 Whorls 10-12, the last convex, rounded at the periphery. Aperture 

 rhomboidal, columella arcuate, a small callus on the umbilical region. 

 Alt. 59, diam. 58 mm. ; alt. 45, diam. 45 mm. 



Ilah. — Auckland to Cook Strait ; Chatham I. 



38. Calliostoma punctulatum (Martyn). 



Trochus punctalat'us, ]\[artyn : Univ. Conch., pi. xxxvi (1784). 



Troclius diapJumus, Gmelin : Syst. Nat., 13th ed., p. 3580. 



Turbo grandincas, Valenc. : Voy. "Venus," atlas Moll., pi. iv, fig. 4. 



