gude: list of helicoid i.and shells. 113 



aspersa, Miill. Treliizond. and Goktscha. 



pomatia, L. Trebizond. = obtusata, Zglr. 



ligata, Miill. v. gussoneana, = obtusalis, Zglr. 



Shutt. Tortoum. nordmanni, Parr. Achalzych 

 melanostoma, Drap v. Candida, Tortoum. 



Rossm. Section Tachea, Leacli. 



vulgaris, Parr. Between Tiflis atrolabiata, Kryn. Borschom. 



ix. TRANSCAUCASIA. 



Repeated explorations of this district, principally by German travellers, 

 have enabled us to form a fairly comprehensive survey of its molluscan 

 fauna 



The earliest extensive collection is that made by Dr. Alexandre 

 Schlafli, recorded by Mousson in two contributions (Coquilles terrestres 

 et fluviatiles recueillies dans I'orient par le Dr. Alexandre Schlafli, 

 1859, and 1863). Professor Roettger, however, is the chief contributor, 

 having published no less than twelve treatises in : Jahrbiichern der 

 Deutschen Malakozoologischen Gesellschaft for 1879, 1880, 1881, 

 1883, and 1886; Bericht der Senckenbergischen Naturforschenden 

 Gesellschaft for 1884 and 1889 : and Radde's Fauna und Flora der 

 Siidwestlichen Kaspigebietes (1886), based on the results of Hans 

 Leder's and O. Retowski's explorations. Oscar Schneider published 

 the results of his travels in Naturwissenschaftliche Beitrage zur 

 Kenntniss der Kaukasus Lander (1878), and Klika in Sitzungs 

 Berichte der Kon Boehmischen Gesellschaft der Wissenschaften, 1893, 

 no. xlv. 



As might be expected the relations of the Transcaucasian 

 molluscan fauna are with South Russia, Armenia, and Persia on the 

 one hand, and on the other with Asia Minor. 



Family Zonitidae- Sub-genus Oligolimax, Fisch. 



Sub-family Zonitinae, Pils. annularis, Stud. Tiflis ; Elisa- 



Genus Daudebardia, Hartm. betpol. 



sieversi, Boettg. = subglobosa, Mich. 



lederi, Boettg. Kutais. sieversi, Mouss. Kutais ; Tiflis; 



jetschini, Wagn. Psirsk. Araxis Region. 



Genus Vitrina, Drap. = komarowi, Boettg. 



Sub-genus Phenacolimax, Stab. Sub-genus Trochovitrina, 



pellucida, Mi.ill. Manglis ; Schacko. 



Mamoutli : Kutais ; subconica, Boettg. Kasbeck. 



Elisabetpol. lederi, Boettg. 



globosa, Boettg. Ibatani. subcarinata, Boettg. Lenkoran. 



