1 literature reference for Gymnothorax sagmacephalus Böhlke, 1997:

Author: Böhlke, E.B.
Year: 1997
Title: Notes on the identity of elongate unpatterned Indo-Pacific morays, with description of a new species (Muraenidae, subfamily Muraninae).
Source: Proc. Acad. Nat. Sci. Philad. 147:89-109.