12(i GASTROPODA. [Aspidobranchia. 



4. Cantharidus pupillus, Hutton, 1884. Plate 33, fig. 7. 



Cantharidus pupillus, Hutt., P.L.S. N.S.W., ix, 362; not Trochus pupillus T 

 Gould (= Valmtdla pupilla, Gld.) ; Man. Conch. (1). xi, 130 ; Suter, P. 

 Mai. S.,ii, 270, fig. in text. 



Shell conical, imperforate, solid, shining, of variable colour and 

 markings. Sculpture consisting of rather broad and flat spiral cinguli, 

 with narrow interstices, 5 to 6 on the penultimate, about 13 on the 

 body whorl, crossed by fine oblique growth-striae ; below the suture 

 and on the periphery of the last whorl 2 cinguli are usually fused 

 together. Colour : Specimens from the North Island are cinereous 

 or white, with broad red spots on the upper whorls and below the 

 suture on the last whorl, the remainder being adorned with blood-red 

 dots ; sometimes the whole shell is pink, with broad oblique white 

 bands running down the 2 last whorls to the periphery. South Island 

 examples are much duller, the first 3 or 4 whorls are mottled with 

 dark grey and purple, whilst near the suture white spots are found 

 at regular intervals, 6 to 7 on a whorl, forming longitudinal bauds on 

 the second and third whorls ; the last whorls are dark purple or 

 greenish-brown, with longitudinal narrow streaks of yellow or yellowish- 

 grey. Spire depressed conical, usually lower than the height of aper- 

 ture, sides slightly convex. Protoconch small, convex, mostly eroded. 

 Whorls 5 to 6, slightly convex, mostly a little shouldered, the last 

 angled at the periphery ; base convex. Suture impressed. Aperture 

 oblique, subrhomboidal, inside pearly and lirate. Outer lip thick, 

 with a white callus inside, which reaches often far into the aperture. 

 Columella oblique, arcuate, slightly straightened in the middle. The 

 inner lip spreading over the umbilicus, filling it completely, or leaving 

 a small fissure. 



Diameter, 7 mm. ; height, 8 mm. 



Animal Hutton, T.N.Z.I., xiii, 202. 



Dentition. L.c., xiv, 165, pi. 7, f. K. 



Type in the Canterbury Museum, Christchurch. 



Hab. Banks Peninsula to Dunedin (Captain Hutton) ; Hauraki 

 Gulf ; Manukau Heads ; East Cape ; Lyall Bay ; Lyttelton and 

 Akaroa Harbours ; Bay of Islands. 



Fossil in the Pliocene. 



5. Cantharidus purpuratus, Martyn, 1784. Plate 39, fig. 7. 



Limax purpurata, Mart., Un. Conch., ii, f. 68 -. Cantharidus purpuratus, 

 Mart.. Man. Conch. (1), xi, 124, pi. 45, f. 44 ; Suter, P. Mai. S., ii, 270. 

 Trochus rostratus. Gmel., Syst. Nat., ed. xiii, 3580. T. elegans, Gmel.,. 

 I.e., 3581. Phasianella rubella, Menke, Syn. Meth. Moll., 51 (teste Hutton). 

 Trochus pallidus, Honibr. & Jacq., Voy. P.S.. v. 55, pi. 14, f. 12, 13, 

 not of Forbes. T. texturatus. Gould, 'Bost. Soc. N.H., iii, 9ft; Expl. 

 Exp.. Moll., 181. pi. 12. f. 20(5. T. rostralus. Kiener, Spec, et Icon., 

 pi. 4G, f. 1. T. torosus, Kiener, I.e., 136, pi. 46. f. 3. 



Shell acutely conical, imperforate, fairly solid, whitish or rosy. 

 Sculpture consisting of distinct broad and flat cinguli, which are finely 



