SPELiEODISCUS. 181 



Schin., which had generally been referred to Patula, has the 

 essential shell characters of the triaria group, and they have 

 described a species of intermediate characters under the name 

 albanica. H. hauffeni is a cave animal, without pigmented 

 eyes, of very pale tint throughout, and with the peristome 

 simplified. If these authors are right in placing hauffeni in 

 the same genus as triaria, then the generic name Spelczodiscus 

 Brusina, based upon it, will take precedence over Aspasita 

 Westerlund, being at least three years earlier. 



Key to Species of Spelceodiscus. 



( Aperture with a stout, obliquely entering parietal lamella 

 J and a heavy parietal callus; outer and basal margins 

 I of lip toothed. S. trinodis, no. 1. 



^ Without a parietal lamella; parietal callus thin (2). 



f 5% to 6y 2 whorls; species of the Banat and Transsyl- 

 2 •{ vania (3). 



I 4% to 5 whorls; species of Carinthia and Albania (4). 



f A conspicuous tooth within the outer lip, the peristome 

 below it strongly thickened within. Banat. 



S. triarius, no. 2. 

 { Outer lip somewhat bent in but not toothed; peristome 

 (^ thickened but little. Transsylvania. 8. triadis, no. 3. 



' Aperture somewhat trilobed ; ribs strong ; last whorl not 

 descending in front ; 4% whorls. Albania. 



S. albanicus, no. 4. 



Aperture lunate ; ribs rather close and delicate ; last 



whorl slowly descending in front ; 5 whorls. Caverns 



L in Carinthia. S. hauffeni, no. 5. 



M 



1. Spel^odiscus trinodis (Kim.). PI. 22, figs. 6, 7, 8. 



The shell is perspeetively umbilicate, rather depressed, 

 solid, light to dark brown, lamellose-ribbed, silky. Whorls 6, 

 closely coiled, the earlier increasing regularly, the last larger. 

 Aperture triangular, 3-toothed, with reddish or brown lip, 

 the margins drawn out, approaching. Peristome strongly 



