278 PROCEEDINGS OF THE JIALACOLOGICAL SOCIETY. 



32. GiBBtJLA SCAMNATA (Fisclicr). 



Trochus {Gihhuh) scamnatus, Fischer: Journ. do Concb.., 1878, p. 66; 



Coq. Viv., p. 394, pi. cx-sii, fig. 4. 

 Gihbula scamnata (Fisch.) : Pilsbry, Man. Couch,, ser. i, vol. xi, p. 220, 



pi. XXX, fig. 6. 



Shell small, subperfoi^ate, conoidal, cinereo- olivaceous, with spiral 

 blackish bands; whorls 6, somewhat convex with 5-6 elevated lirse 

 on the penultimate whorl ; last whorl subangulate, base convex with 

 7-8 concentric liroe, the interstices narrow. Aperture subrhomboidal, 

 sulcata within ; columella arcuate, a little reflexed and almost 

 covering the umbilicus. Alt. 7, diam. 7'5 mm. (Fischer). 



Hab. — Brighton, Otago ; Oceanica (Fischer). 



Specimens collected by Mr. A. Hamilton undoubtedly belong to 

 this species, for which no definite locality was given by Fischer. 



The species closely resembles Cantharidus rufozona, A. Ad., from 

 which, however, it may at once be distinguished by its partly open 

 imibilicus, its arcuate columella without any indication of a tooth, its 

 larger size, and darker colour. 



This is perhaps the undescribed form of Cantharidus mentioned by 

 Pilsbry under C. tenehromis (t.c, p. 124). 



33. GiBiiULA SuTERi (E. A. Smith). 



Photimda Suteri, E. A. Smith: Proc. Malac. Soc, Vol. i (1894), p. 58, 

 pi. vii, Fig. 3. 



Portion of radiila of Gihbula Suteri (E. A. Smith). 



Shell small, turbinate, imperforate, uniformly black or grey, 

 cinereous, pink, etc., longitudinally variegated and tessellated with 

 white. Whorls 5, convex, rapidly increasing, faintly spirally striate. 

 Last whorl angled at the periphery. Aperture rounded, outer lip 

 sharp, columella arcuate, its expansion completely covering the 

 lunbilicus, leaving only a slight pit ; imibilical tract white, impressed. 

 Base slightlv convex. Alt. 4, diam. 4 mm. 



iZrt^.— Lfttclton Harbour (H. S.) ; Lyall Bay (A. Hamilton). 



On examining the animal I found that a jaw is present and the 

 radula is decidedly that of the genus Gihbula. A figure of the teeth 



