Author Frederick W. True (1858–1914) https://en.wikipedia.org/wiki/Frederick_W._True
Description
English: Platanista gangetica, (Lebeck) Wagler. The Susu .
Length 8 feet. (After Eschricht.
Subject: River dolphins, Dolphins
Tag: Aquatic Mammals
Date 1883
Source/Photographer
English: True, Frederick W. (1885) Suggestions to the keepers of the U. S. Lifesaving stations, light-houses, and light-ships, and to other observers, relative to the best means of collecting and preserving specimens of whales and porpoises, Report of the Commissioner (United States Commission of Fish and Fisheries), 1883, Washington, DC: Government Printing Office
Source: https://commons.wikimedia.org/wiki/File:FMIB_34107_Platanista_gangetica,_(Lebeck)_Wagler_The_Susu.jpeg

The South Asian river dolphin (Platanista gangetica) is a freshwater or river dolphin found in India, Bangladesh, Nepal and Pakistan which is split into two subspecies, the Ganges river dolphin (Platanista gangetica gangetica) and Indus river dolphin (Platanista gangetica minor). The Ganges river dolphin is primarily found in the Ganges and Brahmaputra Rivers and their tributaries in Bangladesh, India and Nepal, while the Indus river dolphin is found in the Indus River in Pakistan and its Beas and Sutlej tributaries.