60 CHONDRINA, SECTION SOLATOPUPA. 



be one of the long and slender varieties of Abida variabilis; 



the description is inconclusive, and the locality unknown. 

 The following described forms are synonyms : 

 Form dissimilis West. Quite cylindric, with the spire 



shortly, conically tapering only near the summit, all whorls 



equally and very slowly increasing, somewhat angular below ; 



110 angular lamella ; parietal lamella very high, very oblique, 



long. Length 12-14, diam. scarcely 3 mm. ; aperture 2% mm. 



.See under P. olivetorum. 



Pupa olivetorum Loc. Cylindric, very narrowly elongate, 

 the spire feebly acuminate ; 10-12 quite convex whorls, the last 

 angular towards the rimation ; suture well marked ; aperture 

 small, oboval ; peristome not very thick ; 2 superior folds, one 

 very small at the suture, the other long and deeply placed ; 

 columella simply folded; two deep palatal folds; shell some- 

 what thin, ashy white, marbled, finely striolate. Length 15- 

 16, diam. 3 mm. Le Midi, Alpes-Maritimes. Gard, Herault, 

 etc. (Locard, Ann. Soc. Agricult. Lyon, (7), iii, 1896, p. 183). 



Identical with dissimilis West, and not a species or even a 

 valid variety, according to Caziot (1904), but simply a slen- 

 der mutation occurring individually in normal colonies in 

 many places, never in pure colonies. The tendency to produce 

 such cylindric individuals is common in many species of the 

 genus. 



Pupa plagionixa 'Bgt.,' Loc. Quite small, almost regularly 

 conic, rather squat. 8-10 nearly flat whorls, the last well 

 keeled at the base ; suture not very deep ; aperture subrec- 

 tangular, with the same apertural teeth as similis; shell solid, 

 ashy-white, marbled with blue, finely wrinkled. Length 9-11, 

 diam. 3iX? mm. Alpes-Maritimes, Var, Bouches du Rhone, 

 Isere, etc. (Locard, Ann. Soc. d'Agric. Lyon, (7), iii, 1896, 

 p. 184). According to Caziot (1904) this is certainly an ab- 

 normal shell. 



Pupa variegella Ziegl. This form was mentioned as Chon- 

 drus variegellus Ziegl., but not defined by Cristofori and Jan 

 (Catalogus, etc., sect, ii, 1832, p. 5, no. 18) ; they give the 

 locality southern France. The next notice and first definition 

 is by Beck, who has a var. c. varia, with the synonym Pupa 

 variegella Zigl., under Torqitilla cinerea (Index Moll., 1837, 

 p. 87). He refers to Rossmaessler's fig. 336 as illustrating his 

 variety. This figure appears to be a strongly variegated speci- 

 men of the typical form, about 13 mm. long. Pfeiffer, in 



