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Hargis, William J. (1957). "Monogenetic Trematodes of Gulf of Mexico Fishes. Part XIII. The family Gastrocotylidae Price, 1943 (Continued)". Transactions of the American Microscopical Society. 76 (1): 1–12. doi:10.2307/3223916. ISSN0003-0023. JSTOR3223916.
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Unnithan, R.V. (1968) on six species of Monogenetic trematodes, parasitic on the gills of marine fishes from the Indian seas. Treubia, 27, 141-164. PDF
Unnithan, R. Viswanathan (2009). "On the functional morphology of a new fauna of Monogenoidea on fishes from Trivandrum and environs Part II. Opisthogynidae fam.nov. (Gastrocotyloidea) and Abortipedinae subfam.nov. (Protomicrocotyloidea)". Parasitology. 52 (3–4): 315–351. doi:10.1017/S0031182000027190. ISSN0031-1820.
Hargis, William J. (1957). "Monogenetic Trematodes of Gulf of Mexico Fishes. Part XIII. The family Gastrocotylidae Price, 1943 (Continued)". Transactions of the American Microscopical Society. 76 (1): 1–12. doi:10.2307/3223916. ISSN0003-0023. JSTOR3223916.
Dillon, William Arthur; Hargis, William J. (1965). "Monogenetic Trematodes from the Southern Pacific Ocean: 2. Polyopisthocotyleids from New Zealand Fishes: The Families Discocotylidae, Microcotylidae, Axinidae, and Gastrocotylidae". Biology of the Antarctic Seas II. Antarctic Research Series. pp. 251–280. doi:10.1029/AR005p0251. ISBN9781118668627. ISSN2328-9201.