330 HOHENWARTIANA. 



last 3 more rapidly, last whorl % the total alt. Oolumella 

 straight, twisted, with a distinct projection at base giving a 

 false aspect of truncation. Length 6, diam. 5 l / 2 mm. 



France: debris of the Rhone (Locard). 



Ferussacia locardi Bgt., LOCARD, Etudes sur les Variations 

 Malacologiques, i, 1880, p. 221, pi. 3, f. 19. 



There is evidently an error in the measurements. 



3. H. MOITESSIERI Bourguignat. PI. 51, fig. 4. 



Shell minute, oblong, glossy, polished, hyaline, glassy. 

 Spire short, acuminate, the apex rather obtuse ; whorls 6 to 

 7, slowly and regularly increasing, penult, and last large, 

 separated by a distinct, conspicuously doubled suture, the 

 last whorl dilated, a little convex, neither ascending or de- 

 scending, more than half the total length. Aperture oblong- 

 piriform, narrowed and acutely angular above; columella 

 curved, not reaching the base, slightly truncate; peristome 

 unexpanded, acute; outer lip regularly arching forward, 

 margins joined by a thin callus. Length 5, diam. 2 mm. 

 (Bgt.). 



France: debris of the Lez at Montpellier (Dr. Buges, type 

 loc) . Italy : debris of the Po at Turin. 



Ferussacia nwitessieri BGT., Moll, nouv., litig. et peu eon- 

 nes, 1866, p. 182, pi. 30, f. 6-8. PFR. Monog. viii, p. 307.- 

 Cionella m., WESTERL., Fauna iii, p. 171. Ccecilianella m., 

 POLLONERA, Atti R. Accad. Sci. Torino, xx, 1885, p. 693. 



The shell is said to differ from hokenwarti by the more 

 delicate, clearer, more glossy shell, which is wider in the lower 

 part, with shorter, more acuminate spire; the whorls in- 

 crease more regularly and not so fast; the aperture is nar- 

 rower above, and longer in proportion to the shell's length. 



4. H. BOURGUIGNATIANA (Benoit). PI. 50, figs. 9; pi. 48. figs. 

 24-26. 



Shell oblong-cylindric, polished, pellucid, whitish-buff. 

 Spire turrite, passing into a short cone, the apex rather ob- 

 tuse; suture quite impressed, very narrowly margined. 

 Whorls 5 to 6, a little convex, the two last very rapidly en- 



