John Anderson: Anatomical and zoological researches: comprising an account of the zoological results of the two expeditions to western Yunnan in 1868 and 1875; and a monograph of the two cetacean genera, Platanista and Orcella. B. Quaritch, 1978; S. 304. (Digitalisat).
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Bo Beolens, Michael Watkins, Michael Grayson: The Eponym Dictionary of Mammals. Johns Hopkins University Press, Baltimore 2009, ISBN 978-0-8018-9304-9, S. 53. (Google Books)