18770 More or less smooth, corneous; luniile obsolete; last 

 whorl with a basal crest. G. gracilicosta, Ziegl. Crimea. 



EMARGiNARiA, Bottger, 1877. C. Schaefferiana, Bottger. Mio- 

 cene. 



CANALiciA, Bottg., 1863. G. articulata, Sandb. All species 

 miocene. 



EuxiNA, BJttger, 1877. G. Diiboisi, Charp. G. Schwerzenbachi, 

 Parr. G. strumosa, Friy. G. acuminata, Mouss. G. hetsera., 

 Friv. G. Huebneri^ Rossm. G. Sandhergeri, Mouss. G. 

 Somchetica, Pfr. G. msBsta, Fer. Crimea, Transcaucasia, Asia 

 Minor, Syria. 



ALiNDA, H. and A. Ad., 1855 (emend. \ (Iphigenia, Gra}^, 1840.) 

 Lunule perfect ; spiral lamella disjoined ; internal plications 

 numerous ; last whorl compressed ; aperture canaliculate at the 

 base. G. bijjlicata, Mont. G. plicata, Drap. G. index, Mouss. 

 Transcaucasia, 



STRiGiLLARiA, Ycst, 1867. G. cana, Held. Germany and S. 

 E. Europe. 



PSEUDIDYLA, Bottgcr, 1877. G. Maersingensis, Sandb. Only 

 two miocene species. 



iDYLA, H. and A. Ad., 1855 (emend.). (Subsections: Bitor 

 quata, Bulgarica, Bottger, 1877.) Lunule distinct; plications 

 few or obsolete ; last whorl presenting at the base a large single 

 or double crest ; aperture more or less canaliculated. G. 

 pagana, Ziegl. G. bitorquata, Friv. G. Varnensis, FxY. S. E. 

 Europe and Syria. 



OLiGOPTYCHiA, Bottgcr, 1877. (Crucita, Westerlund, 1878. 

 Subsections : Armeuica, Scrobifera, Hellenica, Bottger, 1877.) 

 G. lsevicollis,Fsirr. G. foveicoUis, Parr. G. Fikermiana,'Rot]i. 

 Greece, Transcaucasia, Asia Minor and Sja'ia. 



PTROSTOMA, Vest, 1867 (emend.). (Plicaphora, Hartmann, 

 1844. Macrogastra,Strobel, 1850. Elia,H. and A. Adams, 1855, 

 part. Subsections : Erjavecia, Brusina, 1870 [Trigonostoma, 

 Vest, 1867]. Kuzmicia, Brus., 1870 [Iphigenia, Westerlund, 

 1878]. Graciliaria,Bielz., 1867.) G. Bergeri, Meyer. G.rugosa, 

 Drap. G. plicatula, Drap. (7. fen^r^'cosa, Drap. (c,- 30). Europe. 



LAMiNiFERA, Bottg., 1863. (Tortula, West.) G. Pauli,Mahi\le. 

 G. rhorabo stoma, Bottg. Pyrenees. Miocene and one oligocene 

 species. 



NENiA, H. and A. Ad., 1855. Costellate or striate ; no lunule ; 

 plication simple, superior ; spiral lamella continuous ; last whorl 

 rounded at the base, produced ; aperture in the axis of the shell ; 

 peristome continuous, reflected. G- Blandiana, Pfr. G. cyclos- 

 toma, Pfr. G. tridens, Chem. (c, 31). G. Bartletti, H. Ad. G. 

 perarata, Martens. G. Bourcieri, Pfr. New Grenada, Ecuador, 

 Peru and Porto Rico. 



