AGARDHIA. 143 



side, as though strangled, so that this part is hardly contin- 

 uous with the rest of the shell, and appears like a carved 

 pouch. The peristome is straight throughout and without 

 thickening, only in the middle of the outer margin laid out 

 or finished with a callus, the margins not as in biplicata re- 

 mote with a mere connecting callus, but directly connected 

 and produced far forward, the columellar margin vertical 

 f old-striate outwardly ; the keel of the neck becomes gradually 

 less acute backward from the peristome, and not circularly 

 surrounding the umbilical slit, but angularly broken in the 

 middle. Finally, valsabina [spinellii] does not reach the size 

 of the compared allies. 



Gredler states that it has 8-9 whorls and four palatal folds. 



The following references pertain to this form : 



Pupa valsabina Gredler, Nachrbl. D. Malak. Ges,, 1885, pp. 



33-36. — Pupa (Sphy radium) spinellii Gredler, Nachrbl., 



1889, pp. 198-200. 



4. Agardhia bourguignatiana (Nevill). PI. 17, figs. 9. 10, 11. 



Shell openly perforate, cylindric, regularly tower-shaped, 

 the apex obtuse, smooth, glossy. Ten slightly convex whorls, 

 nearly equal, separated by an impressed suture, the last 

 whorl short, a little compressed below ; under a lens obsoletely 

 striatulate, the stria? a little oblique, regular. Aperture nar- 

 row, triangular, dilated above, tapering and compressed below, 

 provided with 4 minute folds ; parietal lamella very strong, a 

 little oblique ; columellar lamella prominent, nearly straightly 

 transverse; 2 scarcely visible palatals. Peristome expanded, 

 thickened, the margins joined by a thick callus, the right 

 margin having a strong tooth above the middle, the columellar 

 margin abruptly bent down above the middle. Length 5%, 

 diam. scarcely IV2 nun. (Nevill). 



Alpes-Maritimes near the Italian boundary and over it, in 

 Pleistocene deposits A, B and C. 



Pupa (Sphyradium) bourguignatiana G. Nevtll, Proc. 

 Zool. Soc. Loud., 1880, p. 127, pi. 13, f. 5, with subvar. obesa, 

 p. 127; var. tumida, p. 128; var. plagiostoma, p. 128, pi. 13, 

 f . 6 ; subvar. angusta, p. 128 ; var. prccclara, p. 129, pi. 13, f . 7 ; 

 var. grimaldiensis, p. 129. 



This was exceedingly abundant in deposits A,B,C;I found 



