Francis Day (1829–1889), British ichthyologist and Inspector-General of Fisheries in India (from circa 1871) and Burma.

Taxon names authored

(List may be incomplete)

• 13 taxon names authored by Francis Day

Publications

(List may be incomplete)

• Day, F. 1865. On the fishes of Cochin, on the Malabar Coast of India. Part II. Anacanthini. Proceedings of the Zoological Society of London 1865(1): 286–318. BHL Reference page. 

• Day, F. 1867. On the fishes of the Neilgherry Hills and rivers around their bases. Proceedings of the Zoological Society of London 1867(2): 281–302. BHL Reference page. 

• Day, F. 1870. On the freshwater fishes of Burma.--Part I. Proceedings of the Zoological Society of London 1869 (pt 3) (art. 3) (for 9 Dec. 1869): 614–623. BHL Reference page. 

• Day, F. 1872. Monograph of Indian Cyprinidae. Parts 4–6. Journal of the Asiatic Society of Bengal 41(2, 1–4): 1–29, 171–198; 318–326, Pl. 1. BHL Reference page. 
• Day, F. 1873. On some new fishes of India. The Journal of the Linnean Society of London. Zoology 11: 524–530.

• Day, F. 1878. The fishes of India; being a natural history of the fishes known to inhabit the seas and fresh waters of India, Burma, and Ceylon. Part 4: i–xx + 553–779, Pls. 139–195. Reference page.