die fische
boulenger
Catalogue of the fresh-water fishes of Africa in the British museum
Four volumes from 1909 (V1) to 1916 (V4) at the Harvard Biodiversity Library.
boulenger:
Catalogue of the fresh-water fishes of Africa in the British museum
https://www.biodiversitylibrary.org/item/90544#page/54/mode/1up