1880.] LAND-SHELLS OF MENTON. 123 



upper whorls and then, owing to some injury, the lower whorl of a 

 //. pyramidal a.'" 



Alt. 5f, diam. 1 1^ ; another — alt. 7, diam. 9 millim. 



Helix (Xerophila) pyramidata, Drap. (alt. 7|, diam. maj. 

 11, min. 10 millim., ex Pfeiffer, Mou. i. p. 160). 



Also common near Menton. I found neither this, the next, nor 

 the preceding species at Alassio. One specimen which I found is 

 almost discoidal. 



Subvar. major. Alt. 9, diam. 12 millim. 



Subvar. minor. Alt. 5 5, diam. 7j millim. 



Helix (Xerophila) unifasciata, Poiret (Prodr. 1801, = //. 

 cnndidula, Studer, 1820 ; alt. 5, diam. 8-9 millim., ex Pfeiffer, 

 Mon. i. p. 168). 



Very common, varying much in size. A rare subvariety occurred 

 on Grimaldi Hill, dark brown above and the outer half of the base, 

 with a narrow, well-defined, light-yellow belt at the periphery, just 

 traceable along the suture, the central portion of the base straw- 

 colour, last whorl more compressedly subangulate. 



Subvar. major. Alt. 6, diam. 10 millim. 



Subvar. minor. Alt. 3|, diam. 5| millim. 



Subvar. luteofasciata. Alt. 4, diam. 6| millim. 



Helix (Xerophila) conspurcata, Drap. (alt. 3^, diam. maj. 

 6, min. 5 millim., ex Pfeiffer, Mon. i. p. 171). 



Very common all along this part of the Riviera, as far (at least) 

 as Alassio. 



Alt. 4, diam. (vix) 6| millim. 



Var. iLLTJViNOSA, nov. 



(An potius H. illuviosa, n. sp. ?) 



An apparently constant form, differing conspicuously in the cha- 

 racter of the epidermis and slightly in those of the shell itself. The 

 form not being known to M. Bourguignat, I should not have hesi- 

 tated to describe it as new, but that 1 found so few specimens, only 

 two or three mature and a few young ones ; they all came from a 

 damp shady ravine halfway up the hill, immediately behind the 

 Hotel des Anglais. 



BuLiMiNUS (Chondrula) auADRiDENS, MiiUer. 



Var. PROLixA, Pini (Nuove spec. &c. Moll. 1879). 



I am indebted to M. Bourguignat for the information that this 

 very common Menton shell is the var. lirolixa of Pini ; it is very 

 abundant and variable from the sea-level up to some 2000 feet ; it 

 is also found near the summits of the "Berceau" &c., but is there 

 a rare shell; it did not occur at all subfossil. All the numerous 

 varieties have the aperture distinctly quadridentate, there being 

 amongst them no apparent transition to the next species, which we 

 did not find at all recent. 



