ABIDA. 319 



Piemont, 1864, p. 96, pi. 2, f. 4. PFR., Monogr., vi, 313. 

 WESTEBLUND, Malak. Bl., xxii, 123 ; Fauna, iii, 1887, p. 118. 

 MARGIEE, Feuille jeunes naturalistes, 1896, no. 312, p. 240. 

 Torquilla mortilleti Stabile, POLLONERA, Atti R. Accad. Torino, 

 xx, 1885, p. 688. Not Pupa mortilleti Martens, I860. Pupa 

 stabili v. MARTENS, The Record of Zoological Literature, 1864, 

 p. 233, substitute for P. mortilleti Stabile. STABILE, Bull. 

 Malacologico Ital., i, 1868, p. 34, name corrected to Pupa sta- 

 bUei. 



A species of the Alpine zone, which differs from A. varia- 

 bUis by the small, slender, not swollen shape, which is fusi- 

 form like P. avenacea, or even somewhat subcylindric ; the 

 less solid shell, with the peristome not thickened and with 3 

 instead of 4 plicae. Boettger (1884) regarded the form later 

 named limonensis as typical mortilleti. Westerlund (1887) 

 remarks that "the description of Stabile is not exact, appar- 

 ently because he had specimens of limonensis also before him. ' ' 



A. mortilleti simoni Bttg. Differs from the type [that is, 

 from bland] by the smaller shell, the aperture more rounded; 

 subcircular, less strongly lipped, the angular lamella lower, 

 palatal plicae less deeply entering. Length 6-6%, diam. 2%- 

 2y 2 mm. Abundant on Mt. Cenis (Bttg.). 



Pupa (Torquilla) mortilleti Stab. var. simoni BOETTGER, 

 Nachrbl. d. m. Ges., 1884, p. 47. 



Westerlund considers this a variety of his subsequently de- 

 scribed P. limonensis, which is identical with bland Poll. If 

 this is correct, then the species will be called A. simoni, and 

 bland will become a subspecies, since simoni has priority. 

 Having seen neither form, I am leaving simani where it was 

 placed by Dr. Boettger until the forms can be adequately 

 revised. 



38. ABIDA BLANCI (Pollonera). 



Shell glabrous, corneous, elongate-fusiform or subcylindric- 

 fusiform; whorls 9-10, very slightly convex, the last com- 

 pressed before the rimation. Aperture semioval, 7-folded; 

 one median parietal fold ; a strongly angular fold, produced 

 inward ; two deeply-placed columellar folds, of which the 



