254 PROCEEDINGS OF THE MAIACOLOGICAL SOCIETY. 



I have mucli pleasure in uniting the name of the distinguished 

 conchologist, Professor Dr. Georg Pfeffer, of Hamburg, with this 

 species. 



It is nearly allied to S. Georgiana, Pfeffer, from South Georgia, but 

 is much smaller, the spire more depressed, the parietal callus not so 

 strong, and the aperture not semicircular. Type in my collection. 



Tkophon (Kalydon) Aucklandicus (E. a. Smith). PL XI, Figs. 3, 4. 



Etdhria Aucklandica, E. A. Smith: Voy. "Southern Cross," Moll., 

 1902, p. 203, pi. xxiv, figs. 12, 13. 



It has been my good fortune to get a specimen with the animal 

 from the Auckland Islands, kindly collected by Captain J. BoUons. 

 The operculum (Fig. 3), with sub-apical nucleus, is muricoid, and the 

 teeth of the radula (Fig. 4) are those of Trophon. 



The species has also been found at Campbell Island and Preservation 

 Inlet, South Island of New Zealand. 



Deupa BoLLONsr (Suter). PI. XI, Figs. 5-7. 



Purpura striata BoUonsi, Suter: Trans. N. Zeal. Inst., 1905 (1906), 

 vol. xxxviii, p. 331. 



Shell (Fig. 5) rather small, ovate, solid, white, with nodulous 

 cingula. Sculpture consisting of strong, somewhat unequal, flatly 

 convex spiral ribs, three on the penultimate and seven on the body- 

 whorl, generally composed of four to six fine spiral threads, the 

 interstices usually a little narrower than the ribs, containing sometimes 

 a fine spiral thread ; the cingula are cut up by more or less deep 

 axial sulci into distinct nodules ; growth-lines close, oblique, lamellar, 

 reticulating the fine spiral sculpture. Fasciole distinct, lamellar, 

 leaving a deep groove between it and the inner lip. Colour yellowish- 

 white, aperture white within, the outer lip sometimes yellowish or 

 light purple. Spire conic, very variable in height, mostly a little less 

 than the height of the aperture. Protoconch minute. Whorls about 

 6, flatly convex on the spire, the body-whorl usually more convex, 

 contracted above the fasciole. Suture well impressed. Aperture 

 subvertical, ovate, channelled above, produced below into a short, 

 open, and deeply notched canal. Outer lip convex, crenulate, much 

 thickened inside, very strongly dentate-lirate. Columella subvertical, 

 almost straight, twisted and tapering below ; inner lip moderately 

 broad, very broadly extended over the somewhat concave parietal 

 wall, which bears a small tubercle below the suture ; with three 

 transverse median folds, excavated below, with a free edge bending 

 over the groove margining the fasciole. Operculum (Fig. 6) with the 

 nucleus lateral. 



Diam. 19, height 32 mm. Largest specimen, 6 whorls. 

 „ 16, ,, 22 „ Small „ . 6 ,, _ 



Dentition (Fig. 7) : central tooth with a long simple median cusp, 

 followed on each side by a quadridentate cusp, with the median tooth 

 large, the inner denticle much smaller, and the outer two minute ; 

 towards the margin there are on each side four small denticles, the 

 distal one a little larger. 



