124 MR. G. NEVILL ON THE [Feb. 1 7, 



Long. 11^, diam. 4^ millim. An elongate, move or less com- 

 pressed form, not uncommon in the submaritime zone. 



Long. 13, diam. 4i millim. The ordinary Menton form. 



Long. 9i, diam. 3| millim. A small and rather convex form, 

 rather scarce here. 



BuLiMiNUS (Chondrula) niso, Risso. 



Apparently very scarce ; I found five or six subfossil specimens 

 only in deposit B ; they agree in being a small, more or less sub- 

 convex form, with the columellar dentition quite different from that 

 of the preceding. 



Long. 10, diam. 3| millim. 



Indian Museum, Calcutta. 



Pupa (Pupilla) muscorum, Linnseus. 



A few specimens from deposit F only, all of them possessing a 

 parietal tooth. The species did not occur recent at iMenton ; but I 

 found very similar specimens to the above subfossil ones at Alassio. 



Long. 3i millim. 



Pupa (Pupilla) umbilicata, Drap. 



We did not ourselves find this species at Menton ; but I saw 

 specimens in the small museum, found just outside the towu. I 

 found a curious variety of it at Alassio. 



Pupa (Vertigo) minutissima, Hartm. 



I found only two broken specimens in deposit B ; the whorls 

 were very convex and tumid, no parietal fold (or tooth) ; I think, only 

 5 whorls. 



Var. (? sp. distinct.). 



Three broken specimens from deposit B, differing conspicuously 

 from the preceding ; six whorls, much less convex and tumid, giving 

 the form an attenuate appearance; the aperture has a strongly de- 

 veloped parietal fold ; the striation seems more oblique. 



Both of the above (subfossil forms) in Indian Mus. Calcutta. 



Pupa? (Torquilla ?) psarolena, Bourg. 



Originally described as Bulimus, sp. Rossmiissler, Ic. vol. iii. 

 18.54, fig. 929, who figures the species as Bulimus cinereus, Mor- 

 tillet. Cat. Coq. Nice, 1851, between the Col di Tenda and Nice 

 (that is, just behind Menton), notices its affinity to species of 

 Torquilla, and hesitates in which genus it should be classed. When 

 I found my single very perfect specimen in deposit B, i felt no 

 doubt of its being an edentulate species of Torquilla, and have not 

 altered my opinion since M. Bourguignat gave me some typical 

 living specimens. My subfossil specimen differs not a little from the 

 latter, resembling still more strongly species of Torquilla ; whorls 

 distinctly 7, more elongatcly, regularly jiruduced, the last one not so 

 convexly tumid ; in proportion the aperture a little shorter and less 



