Collecting site
Sevana Lake (Sevana Lich, Gokchai, Gokcha, Sevangha, Goktschasee, Kegharkunik, Goktscha Sees), Armenia
latitude: 40.360298     40°21'37.07"N
longitude: 45.340302     45°20'25.09"E
[Precision of location: Alexandria Digital Library (with NGA GNDB data)] 
[Site Named Here by name of island, bay, strait, lake, river, or stream, etc., named in source publication] 
Collected here:
| Dalyellia kessleri (Plotnikow, 1906) | 1913 or earlier |  |  |  | 
| Dalyellia caucasica Plotnikow, 1906 | 1913 or earlier |  |  |  | 
| Mesostoma ehrenbergii (Focke, 1836) | 1906 or earlier |  |  |  | 
| Mesostoma armeniacium Plotnikow, 1906 | 1906 or earlier |  |  |  | 
| Vortex erivanicus Plotnikow, 1906 | 1906 or earlier |  |  |  | 
| Castrada (Castrada) intermedia (Volz, 1898) | 1917 or earlier |  |  |  | 
| Mesostoma craci Schmidt, 1858 | 1906 or earlier |  |  |  | 
| Phaenocora typhlops (Vejdovsky, 1880) | 1906 or earlier |  |  |  | 
| Vortex kessleri Plotnikow, 1906 | 1906 or earlier |  |  | Kaukasus, Goktscha-See |