146 GASTROPODA. [Aspidobranchia. 



3. Calliostoma punctulatum, Martyn, 1784. Plate 8, fig. 11. 



Trochus punctulatus, Mart., Un. Conch., ii, f. 36, not of 1769. Calliostoma 

 punctulatum, Mart., Man. Conch. (1), xi, 334, pi. 65, f. 75 ; Suter, P. Mai. 

 S., ii, 280. Trochus diaphanus, Gmelin, Syst. Nat., ed. xiii, 1790, 3580 ; 

 Qnoy & Gaim., Voy. Astrol., iii, 254, pi. 64, f. 1-5. Turbo grandineus, 

 Valenciennes, Voy. " Venus," pi. 4, f. 4. Zizyphinus punctulatus, Mart. : 

 Button, M.N.Z.M., 98. 



Shell conoidal, imperforate, solid, not shining. Sculpture consist- 

 ing of narrow spiral closely and conspicuously beaded ridges, 8 to 12 on 

 the penultimate whorl, sometimes equal in size, sometimes alternately 

 larger and smaller ; the interstices with fine crowded growth-lines ; 

 the base has the very same sculpture. Colour yellowish or light 

 fawn, unicoloured or dotted on the spirals with dark brown ; the 

 granules are often white, the epidermis having been rubbed off. Epi- 

 dermis thin, dull. Spire conical, outline convex, rarely a little con- 

 cave toward the apex, about the same height as the aperture, apex 

 acute, minute. Protoconch minute, globular, with 1 smooth whorl. 

 Whorls 8 to 9, convex, first slowly, then rather rapidly increasing, 

 the last rounded at the periphery ; base convex. Suture not deep. 

 Aperture rhomboidal, oblique, pearly and lirate within. Outer Up 

 solid, sharp, sulcate, basal lip sulcate or denticulate within. Columella 

 subvertical, arcuate, pearly, not tubercled below. Inner lip forming 

 a narrow white callosity over the impressed umbilical tract, ending 

 below in a distinct tooth outside the columella. 



Diameter, 36 mm. ; height, 36 mm. 



Dentition. Hutton, T.N.Z.L, xiv, 165, pi. 7, f. H. 



Jaw. Rev. A. H. Cooke, " Molluscs," 1895, 212, f. 108c. 



Hab. North and South Islands and Stewart Island, at low-water 

 mark and in deeper water, more common in the South ; Snares. 

 Brought to England by Captain Cook. 



Fossil in the Miocene and Pliocene. 



4. Calliostoma selectum, Chemnitz, 1795. Plate 40, fig. 4. 



Trochus sdectus, Chemn., Conch. Cab., xi, 168, pi. 168, f. 1896-97. Callio- 

 stoma selectum, Chemn., Man. Conch. (1), xi, 335, pi. 65, f. 73, 74; Suter, 

 P. Mai. S., ii, 281. Trochus Cunninghami, Gray : Griffith's " Cuvier's 

 Animal Kingdom." xii, 1834, pi. 1, f. 7. T. torquatus, Anton : Philippi, 

 Conch. Cab., 1849, 261, pi. 38, f. 13. Zizyphinus articulatus, Reeve, 

 Conch. Icon., f. 3, 1863. Z. decarinatus, Perry : Hutton, P.L.S. N.S.W., 

 ix, 1884 (1885), 359, not of Perry. 



Shell large, solid, conical, imperforate, whitish, the last whorl 

 sharply angled. Sculpture : Upper surface with numerous delicate 

 spiral closely granulose ribs, numbering 10 or 11 on the penultimate 

 whorl, more numerous on the upper surface of the last whorl because 

 interstitial lirulae are intercalated ; on the antepenultimate whorl there 

 are 5 and on earlier whorls 3 granose line ; on the base there are 

 distinctly granose lira* in the middle, but toward the periphery they 

 become smaller, narrower, and less distinctly grained. Colour pale 

 fawn, almost white, with elongated brown dots on the spiral riblets. 



