1880.] LAND-SHELLS OF MENTON. 135 



is open to doubt. The first 3 or 3^ whorls increase very slowly 

 and regularly, the last being, especially above, very tumidly, almost 

 globosely swollen, giving it a pyriform appearance ; in F. gronoviana 

 &c., on the contrary, it is near the base that the whorl is most tumid. 

 The aperture is unusually long, rather narrow ; the outer margin 

 scarcely convex, gradually rounded at base, no trace of any callosity 

 joining margins ; the columella is quite of a different type. In even 

 very young specimens of F. gronoviana it is distinctly callose, is 

 never evenly, spirally, strongly twisted as in F. (!) abnormis, but is 

 nearly straight, only slightly though distinctly twisted, there being 

 invariably two of these folds. The hyahne greenish texture is also 

 quite different from the transparent horny brown of its allv. 



The characters of the columellar spiral fold are almost exactly 

 represented by tlie figure of Streptostyla Jlavescens, Shuttl. Notit. 

 Malac. ii. 18/8, pi. v. fig. 7, the shell generally of which is also not 

 generically unlike. Can it be that the specimens I found at Blida 

 and Menton prove the genus Spiraxis, hitherto supposed to be re- 

 stricted to the New World, to exist also in Europe ? 



Long. 6, diam. 3| millim. 



Type, Indian Museum, Calcutta. 



C^ciLiANELLA EBURNEA, Eisso. (As figured by Bourg. Moll. 

 Alpes-Marit. par Risso, pi. i. figs. 20-22, long. 6, diam. 1| milUm.) 



Not very uncommon in the submaritime zone only ; it occurred 

 also at Alassio. I found it also, apparently subfossil and fairlv 

 abundant, in deposit B. Of course it is possible, from the habits of 

 this mollusk, that these specimens may be recent. I never found 

 the genus actually imbedded in rock, as most of the other foims 

 occurred occasionally, though I especially looked out for it. Mr. 

 Williams did not find the genus in what I call the subalpiue 

 zone. 



Long. 6, diam. 1^ millim. 



Indian Museum, Calcutta. 



C^CILIANELLA, Sp. (?) 



Not uncommon towards the base of the Grimaldi Hill. A com- 

 pressed narrow form, of a peculiar green colour. I dare not describe 

 any species of this genus, as 1 unfortunately do not possess typical 

 specimens of any of M, Bourguignat's species. This may prove to 

 be C acicula or C. liesvillei, &c. 



Long. 4, diam. I| millim. 



Indian Museum, Calcutta. 



CwffiCILIANELLA, U. Sp. 1 



I procured a single very fine specimen of this well marked form, 

 apparently subfossil, from deposit B. The C. mauriana of Bourg., 

 from Cannes (Desc. Moll. Alpes-Marit., long. 7, diam. ]|n)illim.), 

 must be somewhat similar, but is described as having eight whorls, 

 the last scarcely bigger than the penultimate one. My Menton 



