72 "KNDEAVOUK" SCIENTIFIC RKHUUS. 



Hab. A living specimen and a separate right valve were 

 trawled Sept.-Oct. 1913, in 100250 fath., south from Gabo 

 Island. With them were associated Argdbuccinum retiolum, 

 Cyprcea timlilicata, Sowerbj, Scaphella papillosa var. kenyoniana, 

 Brazier, and S. magnifica, Chemnitz. 



CASSIDEA STADIAMS, xp. nov. 

 (Plate x., tig. 4.) 



Gassidea turgida, Hedley (not Reeve), Mem. Austr. Mus., iv., 

 1903, p. 330, pi. xxxvi., tig. I. 



A pair of this species, taken by the " Thetis " Expedition, 

 was doubtfully referred to C. turgida, Reeve. Now that rny 

 acquaintance with it has been improved by examining numerous 

 similar specimens from a wide range of localities, I consider it 

 as distinct and undescribed. From C. turgida it differs as 

 already remarked by larger size and a smooth inner lip. Some 

 might regard it as a form of C. pymiti, Lamarck, the interpre- 

 tations of which are various. Tryon went to the extreme of 

 regarding C. pyrmn as identical with C. paucirugis, Menke, and 

 as a variety of C. achatina, Lamk. It is well to select Kiener's 

 Cassis, fig. 25, as the proper expression of C. pyrnm rather than 

 Kiener's fig. 30 or Reeve's discordant figures in the " Concholo- 

 gica Iconica." I cannot exactly match Kiener's fig. 25 with an 

 actual specimen, but it is approached by examples from New 

 Zealand. By this standard G. stadialis differs from C. pyruin 

 by larger size, absence of angles or tubercles on the shoulder, 

 absence of spiral grooves on the base and presence of wrinkles on 

 the columella lobe. 



It may be characterised thus: 



Shell large, thin, smooth, inflated, ovate-acuminate. Colour 

 vinaceous pink, traversed by four evanescent spii-al bands of rufous 

 blotches, apex lemon, mouth white except on the outer lip, where 

 four pair of chestnut splashes represent the spiral bands of the 

 exterior whorls, five plus a smooth two-whorled protoconch. 

 Sculpture: the body whorl is quite smooth, the antipenultimate 

 and previous whorls are decussated by fine dense spiral threads 

 and oblique growth lines, these disappear on the penultimate. Canal 

 short, recurved, separated from the body whorl by a broad im- 

 pressed farrow which winds beneath the columella lobe into a 

 capacious spii'al false umbilicus. At the tip of the canal opens a 

 minute axial perforation. Outer lip slightly but abruptly ascend- 

 ing at the insertion, moderately expanded and reflected. Inner lip 



