Ophichthus retrodorsalis is an eel in the family Ophichthidae (worm/snake eels). It is found along the Pacific coast of China.
The species has been moved to the genus Pisodonophis and future studies may prove that this species is synonymous to Pisodonophis boro. Hibino Y, Ho H-C, Huang J-F (2024) Descriptions of two new dark-body snake eels of the genus Ophichthus (Anguilliformes, Ophichthidae) from Taiwan. In: Ho H-C, Russell B, Hibino Y, Lee M-Y (Eds) Biodiversity and taxonomy of fishes in Taiwan and adjacent waters. ZooKeys 1220: 63-78. https://doi.org/10.3897/zookeys.1220.126337
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