221 



Watson, ill the ''Challenger" Reports, xv., p. 429, agrees 

 with Beck in the identity of *S'. rhemnitzii, A. Adams, and T. 

 hlainviUeanus, Petit. Mr. Gatliff acknowledges the identity 

 of his species with Petit's. He has kindly allowed me to com- 

 pare his type with my South Australian examples, and see 

 their identity. 



Mr. Gatliff also provided me with a living individual 

 dredged in five fathoms, off the shores of Victoria. It is 

 covered with an epidermis, extremely thin on the smallest 

 whorls (possibly worn away), but well marked on the later. 

 It is simple on the tabulated slope, on the base and in the 

 umbilicus only varied by minute axial lines. On the three 

 carinse it is elevated into low spiral laminae, which are con- 

 nected by more marked axial laminae. At intervals these are 

 large, and projected forwards to form imbricating flounces, 

 while between them may be 3 to 7 of the smaller ones. These 

 flounces correspond with the tubercles at the angles of the 

 polygonal whorls. They are figured in pi. ix., fig. 7, but 

 very imperfectly, owing to its drying up. 



From his living example I was able to extract the radula. 

 This is very similar to that of Trirhotro'pis horealis, Broderip, 

 as figured^ in Fischer's Manuel de Conch., 1887, p. 689. It 

 has a rachiclian tooth with a multicuspidate margin, rather 

 more finely serrated, a larsfe transversely quadrangular lateral 

 with a multicuspidate border and two simple arcuate sharp 

 marginals. (PI. ix., fig. 9.) 



The operculum is horny, subtrigonal, with an apical nu- 

 cleus (pi. ix., fig. 8), and fairly closely resembles that of 

 T. horcalis, Brod. "^he aflinity of our southern subtropical 

 form with that of the arctic form is thus demonstrated. 



Lippistes meridionalis, spec. nov. PI. ix., figs. 1, 2. 



Shell turbinate solid, whorls five, rapidly increasing. Pro- 

 toconch, one and a half whorls, convex, smooth, but for four 

 equal and equi-distant lirse. It ends abruptly with a distinct 

 border, not thickened or reflected. The spire whorl begins 

 with a not quite smooth area, from which the granular spiral 

 lirae gradually arise. Spire whorls are tricarinate. In the 

 first the central carina is more prominent, in the second it is 

 level with the others, in the third it is less prominent. Slop- 

 ing scarcely convex from upper suture to posterior carina, 

 vertical from this to lower suture. On the slope are four equi- 

 distant spiral lirae, one-third or one-fourth the width of their 

 interspaces, increasing in size with the whorls. Base some- 

 what concave. A peripheral carina, less marked than those 

 on the spire, forms the suture. Below it are four broad 

 spiral bands, wider than their interspaces, and microscopicallv 



