SCAI.MMV. >1 



Section ( JIBSOTREM \, .M-n-ii. i 



S. Ki! M i;i. Caiiefri. IM. 17, figs, L' 1 , _'. 26, 



Whorls about l-\ \\ell rounded, Witt :i narrow shoulder above, 

 aculeately decussated by spiral ridge-; crossing tliin longitudinal 

 lamelhe. Length, 7~> in. 



Mil lirit ills, .\r,r ( 'illrd ,,,,'KI. 



S. caiicftlata, Humphreys, is a synonym. For the figure Driven by 



K idler for this species (fig. 2<i ) Caiicfri lias substituted tin- nan 

 l\i> if, -i. as lie believes it to ! ditlrrcnt not only from Lamarck's 

 species ta < Trillion fossil), but also from Sowerby's figure. To the 

 latter I cannot auTtr, for making due allowance for a worn sjieci- 

 men, and the general uniiaturalness resulting from the method of 

 drawinu- Kiener's figures, they appear like enough. 



S. v.\]:iro>A. Lam. PL 17, figs. 23, 'JT. 



\Vliitt-, thick, cancellated by spiral and longitudinal lamella?, the 

 longitudinal sculpture more prominent, fimbriated, with occasional 

 strong tuberculated varices and a spiral basal rib; whorls 12, with 

 very slight shoulder and deep suture. Length, 2 in. 



, Au*ti'nliii, Mauritius. 



S. affr/i untu, Helbling and 8. fnt/>ri<if<i, Lam. are synonyms. 

 Var. Ai;r,Ki:viAT.\, Sowb. Fig. 27. 



Shorter and thicker, the lamella? aculeate at the top of the 

 whorls, the margin crenated. Length, 1 in. 



Mauritius* 

 S. COCHLEA, Sowb. PL 17, figs. 24, 25. 



White, spirally striate, fimbriating the numerous rather thin, 

 sharp Longitudinal lamclhe, with occasional thick tubercular 

 lamelhe; whorls .S, with llatteiied shoulder and deep suture, basal 

 rib finibriated. Length, ]'~> inch. 



X/7/, Mmlrirti, W. Coast of Africa, TJVx/ //////>-. 



Distinguished from the preceding species by its flattened shoulder 



and general corkscrew-like appearance. The name of rur'u-oKH has 

 been ajiplied to this species but the figure in the Encyc. Meth. cited 

 by Lamarck, although very poor, could never be mi-taken for 

 Hroerlii, in Isl4, described an Italian fossil under the 

 of S. pumicea i tig. 2") i \\hich has been identified by several 

 good naturalists with the present sjiecies; if this identification ho. 

 Correct, lir-n-ehi's name should have precedence, but I am not >at- 



