[Division of the Palaearctic into zoögeographical regions on the basis of fresh-water fishes]
Published: 1936
Language: rus
Subjects: Freshwater fishes
Notes: [From] Trudy. Ist. Vsyesozan Geogr. Syezda. [no.] 3, 1936? p. 1-8.

In Russian. Russian and French legend on the chart.