The Gymnothorax castlei lives in the reef-associated, marine, depth range 18 - 21 m environment.
Gymnothorax castlei, a new species of Indo-Pacific moray eel (Anguilliformes: Muraenidae). Pp. 549-554. NG, H.H. & RAINBOTH, W.J. The bagrid catfish genus Hemibagrus (Teleostei: Siluriformes) in Central Indochina with a new species from the Mekong River. Pp. 555-576. More
Castle's moray in English
Muréna Castleova in Czech (česky)