HELIX. 31 



Un figured Species. 



H. ARANEA, Parreyss. Sicily. 



H. SmoNiANA, Bourg. So. France. 



H LEDERI, Bottger. Transcaucasia. 



H. BALATONICA, Servain. Lake Balaton, Hungary. 



H. LETESSIERIANA, Bourg. Algeria. 



H. GAROTTE, Bourg. Tuscany. 



H. PRONOE, Servain. Tuscany. 



H. SERYAINI, Bourg. France. 



H. NEMESIANA, Bourg. Maritime Alps. 



II. Atlantic Species. 



H PUTRESCENS, Lowe. PL 6, figs. 53-55. 



Perspective!}" umbilicated, rather thin, obliquely striulate, 

 shining, dark brown; whorls 5|-6, a little convex. 



Diam. 9-9*5 mill. 



Ins. Palma. 

 Probably belongs in Discus. 



H. PUSILLA, Lowe. PI. 6, figs. 56-58, 64-68. 



Narrowl} T umbilicated, thin, brownish, distantly, membranously 

 costate above, suture distinctly impressed ; whorls 3^, a little 

 convex, last whorl not descending, base smooth ; aperture 



subcircular. Diamj 2 mill. 



Madeira, Teneriffe, etc. 



H. hypocrita, Dobrn, and H. servilis, Shuttl. (figs. 64-66), are 



H. LUSEANA, Paiva. PL 6, figs. 59, 60. 



Moderately umbilicated, thin, pellucid, shining, pale oliva- 

 ceous yellow, with regular incurved radiating strife ; whorls 4-4 i^, 

 tumid, gradately increasing, the last not carinate, not deflected 

 anteriorly, periphery obsoletely angulated. Diam. 2'5 mill. 



Madeira. 



Has been considered a variety of H. pusilla, Lowe ; differs in 

 the umbilicus. 



H. TEXTILIS, Shuttleworth. . PL 6, figs. 61-63. 



Moderately perspectively umbilicated, rather solid, obliquely 

 closely costulate ; yellowish corneous, here and there maculated 

 with brown, suture deep; whorls 7, convex, slowly enlarging, 



