GUDE : LIST OF HELICOID LAND SHELLS. 



53 



by Stoliczka during the second Yarkand Mission. One species we owe 

 to Prejevalski ; while the remaining, species have been contributed by 

 the travellers Kasnakow and Stenroos, and were described by Dr. 

 Westerlund. Here the Zonitidae are represented by one species, and 

 the Chinese genus Cafhaica .again preponderates ; but Fndiricola has 

 one and Vallonia two representatives, showing relationship with the 

 European Antarctic fauna. 



plectotropis, Mts. Yarkand : 



Karghalik. 

 uniformis, Anc. Arassan Culak. 

 anisopleuros, Anc. (?) Central 

 Asia. 

 Sub-Genus Campylocathaica, Andr. 

 capusi, Villeserre. 



Aksu. 



Family Zonitidae. 

 Sub-family Zonitinae. 

 Genus PoLiTA, Held, 

 kasnakowi, \\'est. 

 Family Helieidae. 

 Group Belogona, v. Iher. 

 Belogona Euadenl-v, Pils. 

 Section Eulota, s.s. 



stenroosi. West. (Pomatia). 

 Terskii-Alatau. 

 V. tetrica. West. 

 Genus Cathaica, Mdff. 

 Sub-genus Eucathaica, Andr. 



funki, Anc. Karghalik. 

 Sub-genus Pliocathaica, Andr. 

 rossimontana, Mdff. Kerija 

 Darja Valley, Russian 

 Range, 

 phaeozona, Mts. Pasrobat : 

 Karghalik ; Sasak Taka. 

 Sub-genus Xerocathaica, Andr. 

 stoliczkana, Nev. Sasak Taka ; 

 Pasrobat. 

 Sub-genus Pseudiberus, Anc. 



palmeni, ^^'est. Kashgar. 



v.accinta,West.Djuka-l)jok 

 Valley, 

 scythica, West. Dgehularik. 

 opposita, West. L)juka-l)jok 

 Valley. 

 Genus Eulota, Hartm. 

 Belogona Siphonadenl\, Pils. 

 Genus Hygromla., Risso. 

 Section Fruticicola, Held. 



mesoleuca, Mts. Kizyl, Yarkand 

 district. 

 Genus Vallonl\, Risso. 

 costata, Miill. Pasrobat. 

 asiatica, Nev. Pasrobat ; Sasak 

 Taka. 



D. MONGOLIA. 



This country as might be expected from its position shows affinity 

 with northern Tibet. Our knowledge of the Helicoids is at present 

 confined to the genus Cathaica, the shells ha^■ing been collected by 

 Prejevalksi, Regel and Obrutschew. 

 Genus Cathaica, Mdff. 



Sub-genus Pliocathaica, Andr. 

 rubens, Mts. v. concolor, Mts. 

 Mount Tarbagatai. 

 v. regeliana, Mts. Kuldja. 



semenowi, Mts. Kuldja, Hi 

 and Kunges Valley. 

 v.depressa,Mouss. Kuldji. 



paricincta, Mts. Kuldja; Kasch j 

 Hi and Kunges ^'alley. 



