PLEURODISCIDAE. 185 



Var. rupicola Stabile. Shell more conic, umbilicus nar- 

 rower. Massagno and Mont S. Salvatore, Lugano. A speci- 

 men from Pisa measures 2.3 x 2.5 mm., umbilicus 0.5 mm. 

 PL 25, fig. 8. 



Var. scotaea Bgt. PI. 25, figs. 6, 7, after Bgt. Conoid- 

 globose, the umbilicus small. 3 x 3.5 mm. Constantine, Bou- 

 Mecid ; Bougie ; the only variety which has been found in 

 Algeria (== var. conoidea Bgt. not H. conoidea Sowb.). 



Var. meridionalis Issel. Spire more elevated, umbilicus 

 very narrow. 2.5 x 2.5 mm. ; 5 whorls separated by deep 

 suture. Monte Sant' Angelo, Ferentillo, Umbria. 



Var. jaenensis Cless. Conoid-turbinate, deeply and widely 

 umbilicate, higher than wide. Alt. 2.5 mm., diam. 2 mm., 

 5-53^ rounded whorls. Jaen, Spain. 



Var. dalmatina Cless. More highly coiled and more globose. 

 Dalmatia : cliffs over the source of the Jedrobach and in the 

 Cettina valley near Almissa. 



Var. piyiii Adami. Shell larger, pyramidal, strongly striate, 

 the suture extremely deep, whorls more rounded. Diam. 3-4 

 mm., alt. 2.3 - 3.3 mm. Mt. Baitone, Bergamasque Alps, on 

 schistose and granitic rocks. 



Helix rupestris var. trochoides (Ferussac, Tabl. Syst. p. 40 

 (44), not defined; said to be from Castelnau, one of Drapar- 

 naud's localities for typical rupestris) Paulucci 1879, Fauna 

 Malac. Calabria, p. 64; also 1881, Bull. Soc. Malac. Ital. VII, 

 p. 85, referring also to Ferussac, Hist. pi. 80, fig. 3, "la variete 

 conoide. ' ' That figure represents a specimen somewhat higher 

 than wide. Mme. Paulucci placed var. meridionalis Issel in 

 the synonymy of trocJioides Fer. ; but the name cannot fairly 

 be ascribed to Ferussac, since it was not connected with his 

 later figure until Mme. Paulucci made that inference in 1879. 



Helix rupestris var. trochoides Kreglinger, 1870, Syst. Verz. 

 Deutsch. Binnen-moll. p. 55, defined by the single word 

 "elevata^', may be the same. No definite locality given. 



Probably the above names rupicola, meridionalis, trochoides 

 and dalmatina were applied to forms scarcely if at all dis- 

 tinguishable. My pi. 25, fig. 8, from Pisa, represents this 



II MK^ 



