. Bulletin - United States National Museum. Science. FAMILY MURAENIDAE—SCHULTZ 121 front edge of pupil, notably behind front edge of eye; posterior nasal openings with the raised rims fringed, this fringe composed of tiny cirri; body scarcely compressed forward, more so posteriorly; gill opening on sides, about on level with lower edge of eye; arrangement of teeth as shown in the figure, teeth on vomer in about two rows. Color in alcohol.—Plain light brown, with median fins white edged; gill openings surrounded by black or dark brown; eye bordered by a narrow, dark brown line. Remarks.—This ne
. Bulletin - United States National Museum. Science. FAMILY MURAENIDAE—SCHULTZ 121 front edge of pupil, notably behind front edge of eye; posterior nasal openings with the raised rims fringed, this fringe composed of tiny cirri; body scarcely compressed forward, more so posteriorly; gill opening on sides, about on level with lower edge of eye; arrangement of teeth as shown in the figure, teeth on vomer in about two rows. Color in alcohol.—Plain light brown, with median fins white edged; gill openings surrounded by black or dark brown; eye bordered by a narrow, dark brown line. Remarks.—This new species is characterized by its very light brown coloration and the gill opening surrounded by black, a color combina- tion not yet described so far as we could find for any other species of. Figure 25.—Holotype of Gymnothorax melatremus, new species ( 141610), from Bikini Atoll. (Drawing by Dorothea B. Schultz.) Gymnothorax having very short conical teeth, none of which are fang- like. This eel, along with Gymnothorax thyrsoid&us^ approaches rather those eels usually placed in the genus Echidna, and it more or less bridges the gap between those two genera. It is named melatremus in reference to the black blotch around the gill opening. GYMNOTHORAX THYRSOIDEUS (Richardson) Figure 10, e Muraetm thyrsoidea Richardson, The zoology of the voyage of H. M. S. Sulphur . . , Fishes, p. Ill (non pi. 49, fig. 1), 1844 (type locality, China Seas). Oymnothoraw prosopeion Bleeker, Atlas ichthyologlque des Indes Orientales Neerlandaises . . , vol. 4, p. 88, pi. 183, fig. 3, 1864 (type locality, Cocos= Nova-Selma, Sumatra, Halmahera, Amboina, Timor). Gymnothorax thyrsoideus Hiyama, Report on the poisonous fishes of the South Seas, p. 25, pi. 2, fig. 6,1943 (Marshalls). SPECIMENS STUDIED Bikini Atoll: Reer Island, lagoon reef, August 12, 1946, S-46-332, Herald and Brock, 1 specimen, 170 mm. total length. Rongerik Atoll: Bock Island, ocean reef, April 24, 1946, S-46-113, B
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