26 CHONDRIN^ OF THE ALPIC CENTER. 



ther inland there is only the small form at Makarska. On 

 Lissa, rather large, yet not reaching the size of the Spalato 

 shells." 



These notes give the proper perspective for viewing the 

 named varieties; Kuster's large form being ventUatoris, his 

 small one typical spelta and var. obscura. 



Var. venttiatoris ('Parr.' West). Vol. 24, pi. 48, fig. 11. 

 Larger, more openly umbilicate, irregularly rib-striate, from 

 dark chestnut-brown to deep cherry-brown ; sometimes having 

 a third palatal fold at the base, and a fourth little one above 

 near the suture. Length 6%-7, diam. hardly 3 mm. (West.). 



Dalmatia: Spalato. 



Pupa ventilatoris Parreyss, MARTENS, Die Heliceen, 1860, p. 

 288 (name only). WESTERLUND, Malak. Bl., xxii, 1875, p. 131 

 (description). PFR., Monogr., viii, p. 264. CAZIOT, Bull. Soc. 

 Zool. France, vol. 35, 1910, p. 151. Pupa muhlfeldi [sic] var. 

 ventilatoris Parr., WESTERLUND, Fauna, iii, 1887, p. 104. 

 Pupa muhlfeldtii var. major KUESTER, Conchyl. Cab., p. 29, 

 pi. 4, f. 5, teste West., Nachrbl., vii, 1875, p. 73. 



Kuester recognized this race, but used a preoccupied name. 

 His description follows : 



Var. major Kiister. Vol. 24, pi. 48, fig. 11. Shell in general 

 like the typical form, but the color is generally darker, the 

 whorls flattened in the middle, aperture with 6 or 7 folds, the 

 seventh standing basally on the palate, where the peristome 

 curves into the columella. Length 3, diam. 1% lines. Under 

 stones near Spalato, Dalmatia, above Salona towards the fort- 

 ress Clissa, in company with ClausUia crenulata, not uncom- 

 mon (K.). 



Var. obscura Mtihlf., Kiist. Vol. 24, pi. 48, fig. 4. Shell 

 rather thin-walled, long-conic, the whorls flatly convex, with 

 the suture but little impressed, aperture 6-plicate, the outer 

 [angular] fold of the parietal wall sometimes almost imper- 

 ceptible. Length scarcely 2 lines, diam. 1 line. Within the 

 Spalatine district, on cliffs (K.). This is var. minor Kiister. 



The figures of this and the preceding variety are from 

 Kiister. A specimen having the angular lamella extremely 

 low, but with convex whorls, is drawn in vol. 24, pi. 48, fig. 



