macrobrachium, Enneapterygius Fowler [H. W.] 1946:189, Fig. 53 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 98; ref. 1456] Aguni Shima, Ryukyu Islands, Japan. Holotype (unique): ANSP 72065 [not 72055] (missing). Type catalog: Böhlke 1984:164 [ref. 13621]. •Synonym of Enneapterygius hemimelas (Kner & Steindachner 1867) -- (Fricke 1994:216 [ref. 21827]). • Type lost; questionably the same as Enneapterygius rubicauda Shen 1994 -- (Fricke 1997:310, 571 [ref. 23339]). •Nomen dubium in genus Enneapterygius -- (Dewa & Motomura 2022:[13] [ref. 39404]). Nomen Dubium. Tripterygiidae: Tripterygiinae. Habitat: marine.