AGARDHIA. 149 



pi. 15, figs. 33, 34. — Pfeipfer, Monogr. Hel. Viv., ii, 332 ; iii, 

 543 ; iv, 669 ; vi, 309. — Dupuy, Hist. Moll. France, 1850, p. 

 406 (in part). — Gredler, Verh. zool.-bot. Ges. Wien, 18.16, p. 

 110.— De Stefani, Bull. Soc. Malac. Ital., ix, 1883, p. 139.— 

 De Betta, Atti Istituto Veneto (3), xv, 1870, p. 1462 (prov- 

 inces Verona and Friuli). — Westerlund, Malak. Bl., xxii, pp. 

 129, 133 ; Fauna, iii, 1887, p. 89. Pollonera, Bull. Soc. Mai. 

 Ital. xii, 1886, pi. 6, f. 7. 



Spkyradium biplicata Mich., Clessin, Moll.-fauna Oester- 

 reich-Ungarns, 1887, p. 243, f. 145. 



Coryna biplicata Mich., Cecconi, Boll. Mus. Zool. Anat. 

 Comp. Torino, no. 627, p. 3 (Pianosa). — Germain, Moll, de la 

 France, ii, 1913, p. 183, f. 238. 



Among the nearly smooth species, this one is distinguished 

 by <the long median palatal folds, the small size of the lip- 

 tooth, the little denticle on the right side of the parietal 

 lamella, and the moderately compressed base. 



Michaud's description of this species was incomplete; he 

 did not see all of the teeth. His figure is poor. Dupuy ex- 

 amined and drew Michaud's type, but his account and figures 

 leave much to be desired. Pollonera. described and figured a 

 topotype collected by Locard ; his work is herein reproduced, 

 as only Italian forms of the species are accessible to me. 



As in Pupilla, the length of the shell is individually quite 

 variable, the diameter remaining more constant. 



The distribution of A. biplicata as given above is subject to 

 revision, since some authors have included various allied forms 

 under that name. The indefinite Pyrenean record appears 

 improbable. 



5a. A. biplicata locardi ('Bgt.,' Loc). PI. 16, figs. 10, 11. 



Exactly cylindric, a little short and swollen, well rounded 

 at summit, of 7-8 nearly flat whorls, the suture very little 

 impressed. Aperture oval, a little angular at base: 1 median 

 superior fold, long, arcuate, nearly immersed ; 1 robust, lamel- 

 lar, median, oblique coluniellar fold, nearly reaching to the 

 margin; 3 palatals, the upper and lower rudimentary, the 

 median tubercular on the peristome. Peristome spreading, 

 reflected, a little thickened. Shell glossy, very pale corneous, 

 a little striolate. Length 4 1 /., diam. 1% mm. Very rare. 



