282 PEOCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



flat, the last slightly convex above, obtusely angular at the periphery, 

 somewhat convex beneath. Aperture subrhomboidal, columella 

 arcuate. Umbilical region with a large callosity. Alt. 50, diam. 

 57 mm. ; alt. 37, diam. 47 mm. 

 Mob. — Auckland to Cook Strait. 



%* Calliostoma LessoiKBanum, Tapp.-Can. : Pilsbry, Man. Conch., ser. i, 

 vol. xi, p. 402, is not a New Zealand shell. 



Genus EUCHELUS, Philippi, 1847. 



Sect. EUCHELUS, s.s. 



{ = Euttoma, T. W. Kirk : Trans. New Zealand Inst., vol. xiv, p. 282.) 



41. EUCHELTJS BELLUS, Hutton. 



Uucheliis bellus, Hutton: Cat. Mar. Moll., 1873, p. 37; Man. New 

 Zealand Moll., p. 95 ; Proc. Linn. Soc. New South Wales, 

 vol. ix, p. 357 ; Pilsbry, Man. Conch., ser. i, vol. xi, 

 p. 435, pi. Ixvii, fig. 80. 



Huttonia hcUa, Hxitton : Trans. New Zealand Inst., vol. xv, p. 123, 

 pi. xiv, fig. I (operculum and radula). 



Shell small, globose - conic, pinkish - white varied with darker 

 markings, imperforate, with granose spiral lira), 7-8 on the penulti- 

 mate whorl, 10 on the body-whorl. Whorls 5, convex, the last 

 globose. Aperture rounded, columella concave, terminating in a tooth, 

 below it a narrow notch, and another tooth on the basal lip. Alt. 6'5, 

 diam. 6'5 mm. 



Hah. — Chatham I. 



Var. tricolor, T. W. Kirk. 



JTidtoma tricolor, T. W. Kirk : Trans. New Zealand Inst., vol. xiv 

 (1882), p. 282; Hutton, Proc. Linn. Soc. New South 

 Wales, vol. ix, p. 358. 



Euchelus bellus var. iricolor, Pilsbry : Man. Conch., ser. i, vol. xi, 

 p. 436. 



Granules coarser ; dirty chocolate, interior bluish-green. 

 I£ab. — Auckland to Waikanae. 



42. Euchelus Hamiltoni (T. W. Kirk). 



Huttonia Hamiltoni, T. W. Kirk : Trans. New Zealand Inst., vol. xiv 



(1882), p. 283. 

 Eachclas Hamiltoni, T. W. Kirk : Hutton, Proc. Linn. Soc. New 



South Wales, vol. ix, p. 358 ; Pilsbry, Man. Conch., 



ser. I, vol. xi, p. 43G. 



