MARINE MOLLUSCA OE MADEIRA. 253 



which, as set on the spire, slightly diverges from the axis of the 

 shell ; it consists of 4 full whorls, flat-sided, glossy, faintly striated 

 longitudinally, which are parted by a barely impressed, slightly 

 chestnut-tinged suture. Mouth very slightly elliptical in the 

 axial line, the pillar being little curved. Lip patulous all 

 round and flat-edged, except just where it crosses the body-whorl, 

 and is there attached so as to leave no umbilical chink whatever. 

 — H. 0-25. B. 0-09. 



My specimens are nearly all young, but the size was measured 

 from the juxtaposition of 2 or 3 larger, well-preserved fragments. 

 The apex, the suture, the shape of the whorls, the stumpier form, 

 the crowded longitudinals bespurred close to the suture, the 

 crisper spirals, and the absence of any approach to an umbilicus, 

 markedly differentiate this species from S. Smithii, which super- 

 ficially it seems very like. 



Not rare, from deepish water along the S. coast from Funchal 

 to Punta de Sao Lourenc,o ; other collectors did not meet with it. 

 I have named the species in remembrance of my much lamented 

 friend Dr. Fischer, of the Jardin des Plantes, Paris. 



20. Scalaria Smithii, n. sp. 



Shell small, with short, rounded, slightly depressed whorls, a 

 spire which is a little scalar, fine translucent mucronate ribs, 

 very delicate spiral threads, a slightly impressed little-oblique 

 suture, and a rounded umbilicated base. Sculpture — Longi- 

 tudinals: on the lower whorls there are about 20 fine sharplv 

 projecting translucent riblets, which run in a slightly oblique 

 discontinuous line from whorl to whorl down the spire, on the 

 earlier whorls they are somewhat fewer in number ; on each 

 riblet, slightly above the periphery, there projects a small nearly 

 right-angled tooth — very often broken off. Spirals : there are 

 about 15 to 20 very fine rounded little raised threads, which tend 

 to become fainter about the periphery of each whorl. Colour 

 saccharine white. Spire high and narrow. Whorls 6 (exclusive 

 of those of the apex) ; they are rather short and tumid, markedly 

 broader below than above, and are of very regular increase. 

 Suture fairly impressed and rather oblique. Apex : 3 complete 

 rounded whorls form a small high regular blunt cone on a 

 small base set on a little to one side of the axis of the spire ; 

 these whorls are microscopically barred longitudinally. Mouth 

 almost quite round, not small. Lip sharp-edged, not patulous, 



