182 SPEI^EODISCUS. 



repressed, reflected from the columellar angle to the tooth in 

 the outer margin. Diam. 4.3, alt. 3.8 mm. ; alt. and width of 

 aperture 1.8 mm. (Kim.). 



Differs from the typical triaria by the conspicuous thick 

 parietal tooth, the far narrower umbilicus etc. (Kim.). 



Height 2.9, diam. 4.5 mm. ; 6 whorls. 



Height 2.2, diam. 3.8 mm. ; 5!/2 whorls. 



Transylvania: Piatra Alba, Cimpu-Sirului, Grosser Skok, 

 southern spur of the Plesa, Cimpu-Mielului and Dilma Mare 

 in the Schiel Mts. ; Skerisora at the ice cave, Unter-Girda, 

 Toroczkoer Steinschlucht, Toroezko-Ujfalu and Tordaer Fels- 

 spalte in the Transylvanian Erzgebirge (Kim.). 



Anchistoma (Gonostoma) trinodis Kiaiakowicz, Verb. u. 

 Mittheil. siebenbiirgischen Vereins f. Naturwiss. in Hermann- 

 stadt, xxxiv, 1884, p. 107. — Gonostoma (Aspasita) trinodis 

 Km., Verb, etc., xl, 1890, p. 45. — [Helix triaria] var. trans- 

 sylvanica Hazay, Jahrb. D. Malak. Ges., xii, 1885, p. 27 (Ge- 

 birge Dilma Mare) . 



The stout parietal lamella is strongly connected with the 

 columellar insertion. The tooth of the basal lip is sometimes 

 low and spreading. Between the two lip teeth and connecting 

 them there is a semicircular inward callus. The degree of 

 depression of the spire is quite variable individually. 



2. Spel^odiscus triarius (Rossm.). PI. 22, figs. 1, 2, 3. 



The shell is perspectively umbilicate, small, depressed, with 

 flatly roof-like spire of 6 closeby coiled whorls separated by a 

 deep suture; horn-brown, lusterless, finely ribbed; the last 

 whorl angular above, impressed below. Aperture lobed, very 

 oblique; peristome reflected, with a thin dirty thickening; 

 the outer margin impressed, with a pronounced tooth within ; 

 columellar margin with a hardly noticeable little hump (Boss- 

 maessler). 



Height 2.5, diam. 3.6 mm.; 5% whorls. 



Height 2.9, diam. 4.6 mm. ; 6*4 whorls. 



In the Banat (Rossm.). Mehadia in the Csernatal (with 

 the mutation albina), on the Domoglet, Steierdorf in the 

 Anina gorge and at the Panur cave (Jetschin in Kimakowicz). 



