DAUDEBARDTA. 1 5 



D. SICULA, Benoit. PI. 2, figs. 77, 78. 



Shell perforate, oblong, rounded in front, diaphanous, shining ; 

 apex lateral, scarcely elevated, obtuse ; whorls 3, the last very 

 large ; aperture rather broadly oval. 



L. 4-5, diam. 2-75-3, alt. 1'25 mill. Sicily. 



Vitrina elongata, Calcara, is a sj^nonym. 



D. BREVJPES, Drap. PL 2, figs. 50, 62-64. 



Shell perforate, depressed, subauriform, thin, smooth, diaph- 

 anous, transversely dilated, orange-red or chestnut-colored; 

 spire very small, lateral ; volutions nearly 3 ; aperture large, 

 ovate. Length, 5 mill. 



Germany, Switzerland, Northern Italy. 



Includes D. Maravignse, Mandral., D. longipes, Zieggl. 



D. ATLANTICA. Bourg. PL 2, figs. 88-90. 



Shell perforate, whorls 2, rapidly increasing, with well- 

 impressed sutures, lightly striate, thin, very fragile, transparent ; 

 amber-colored ; spire slightly elevated ; aperture very large, 

 transversely oblong, somewhat oblique, rather straight margined 

 above, more convex below. L. 3 mill., alt. 1'25 mill. 



Near Bona, Algiers. 



P. PLATYSTOMA, Letoumeux. Unfigured. Kabylia. 



D. CHAROPIA, Letourneux. Unfigured. Bona, Algiers. 



D. ELATA, Miihlf. No description, figure or locality. 



Section PSEUDOLIBANIA, Stefani. 



D. HEYDENI, Bottger. PL 2, figs. 67, 68, 51-53. 



Shell small, rimate, elongately ovate, subdepressed, shining, 

 not pellucid, yellowish green; spire moderate; the whorls 2, 

 rapidly increasing, with profound suture, last whorl somewhat 

 dilated, obtusely angulated on the periphery ; peristome mem- 

 branaceous, the membrane broad, extremities separated by the 

 spire, without callous or membranous connection upon it. 



Length, 3'5 mill. 



Caucasia. 

 D. Pawlenkoi, Bottger (figs. 51-53), is a synonym. 



D. SIEVERSI, Bottger. PL 2, figs. 58, 60, 61. 



Small, perforate-rimate, elongate oblong, margins subparallel, 

 subdepressed, fragile, pellucid, shining, light olivaceous brown ; 

 above rather flattened, below subglobose ; spire moderate, whorls 



