YITRINA. 



145 



suture, the apex minute, the last whorl transverse^ dilated, 

 scarcely descending ; aperture transverse, large, the columellar 

 margin arcuated, not reflected ; umbilical region somewhat 

 depressed. Diam. 7, alt. 4 mill. 



Mts. of Abruzzi, Italy. 

 Y. BOXELLII, Targioni-Tozzetti. PI. 31, figs. 43, 44. 



Depressed, greenish yellow, whorls 3, very rapidty increasing, 

 slightly striate, more distinctly so at the suture ; aperture 



rounded ovate. Diam. 5, alt. 3*5 mill. 



Tuscany. 



Un figured Species. 



Y. SERVAINIANA, St. Simon. 

 Y. CARNIOLICA, Bottger. 

 Y. REITTERI, Bottger. 

 Y. BICOLOR, Westerlund. 



Y. AMPULLACEA, Jail. 

 Y. HIEMALIS, Kocll. 



Y. RUGULOSA, Koch. 



Y. MEXICANA, Beck. Undescribed. 



Near Luchon, Pyrenees. 

 Carniola. 



Western Montenegro. 

 Switzerland, Pyrenees. 



Sicily. 



Oetzthal, Tyrol. 



Turkestan. 



Mexico. 



Section OLIGOLIMAX, Fischer, 1878. 



Y. ANNULARIS, Stiuler. PI. 31, figs. 45-48. 



Depressly globose, rather smooth, thin, pellucid, somewhat 

 shining, greenish In-line ; spire obtuse, whorls 3, moderately 

 increasing, the last rounded, wide at base; aperture rounded 

 oval, columellar margin short, subvertical ; umbilicus perforate. 



Diam. 4, alt. 2'75 mill. 



Mts. Switzerland, France, Piedmont, Caucasus, Pyrenees. 



The synonyms are Helix imputa, Studer ; V. subglobosa, Mich. ; 

 V. semulans, Ad., and probably the unfigured V. plicosa, Bielz, 

 of Transylvania. 



Y. KOMAROWI, Bottger. PI. 31, figs. 49, 50. 



Shell proportionally wider for its height, brownish instead of 

 greenish, the spire more convexly conoidal, the whorls (3^) 

 more slowly increasing, the embryonal whorl broader, the last 

 whorl more descending than V. annularis. 



^j _^w^*w^^. 



Diam. 4*75, alt. 3'5 mill. Caucasus. 



10 



