River Scene in West Africa, with Characteristic Animals.

Right: red river-hog (as Potamochœrus penicillatus)
In tree overhead: potto (as Perodicticus potto)
Left: Potamogale velox
Other side of river: gorillas (as Troglodytes gorilla)
On wing: Whydah finch (as Vidua paradisea)
Crested bird overhead: green touracos (as Turacus macrorhynchus)

Date 1876
Source The Geographical Distribution of Animals, Vol. I: Project Gutenberg : https://archive.org/details/geographicaldist01wall2
Author Alfred Russel Wallace. Illustration by Johann Baptist Zwecker (1814–1876).
Source: https://commons.wikimedia.org/wiki/File:Distribution_of_Animals_-_West_Africa.jpg


Right: red river-hog (as Potamochoerus penicillatus = Potamochoerus porcus)
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The red river hog (Potamochoerus porcus) or bushpig is a wild member of the pig family living in Africa, with most of its distribution in the Guinean and Congolian forests. It is rarely seen away from rainforests, and generally prefers areas near rivers or swamps.[
Order: Artiodactyla > Family: Suidae > Genus: Potamochoerus > Species: Potamochoerus porcus


In tree overhead: potto (as Perodicticus potto)
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The West African potto (Perodicticus potto) is a species of nocturnal strepsirrhine primate. It is found in tropical West Africa.
Order: Primates > Family: Lorisidae > Genus: Perodicticus > Species: Perodicticus potto

Left: Potamogale velox
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The giant otter shrew (Potamogale velox) is a semiaquatic, carnivorous afrotherian mammal. It is found in the main rainforest block of central Africa from Nigeria to Zambia, with a few isolated populations in Kenya and Uganda. It lives in streams, wetlands and slow flowing larger rivers. Otter shrews are most closely related to the tenrecs of Madagascar.
Order: Afrosoricida > Family: Potamogalidae > Genus: Potamogale > Species: Potamogale velox

Other side of river: gorillas (as Troglodytes gorilla = Gorilla gorilla)
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The western gorilla (Gorilla gorilla) is a great ape found in Africa, one of two species of the hominid genus Gorilla.
Order: Primates > Family: Hominidae > Subfamily: Homininae > Genus: Gorilla > Species: Gorilla gorilla

On wing: Whydah finch (as Vidua paradisea = Vidua paradisaea)
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The long-tailed paradise whydah or eastern paradise whydah (Vidua paradisaea) is from the family Viduidae of the order Passeriformes. They are small passerines with short, stubby bills found across Sub-Saharan Africa. They are mostly granivorous and feed on seeds that have ripen and fall on the ground.
Order: Passeriformes > Family: Viduidae > Genus: Vidua > Species: Vidua paradisaea

Crested bird overhead: green touracos (as Turacus macrorhynchus = Tauraco macrorhynchus)
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The yellow-billed turaco (Tauraco macrorhynchus) is a species of bird in the family Musophagidae. It is found in Angola, Cameroon, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Ghana, Guinea, Liberia, Nigeria, and Sierra Leone.
Order: Musophagiformes > Family: Musophagidae > Genus: Tauraco > Species: Tauraco macrorhynchus