affinis, Microdesmus Meek [S. E.] & Hildebrand [S. F.] 1928:955, Pl. 98 (fig. 1) [Field Museum of Natural History, Publications, Zoölogical Series v. 15 (publ. 249); ref. 2964] Chame Point, (Pacific) Panama. Holotype (unique): USNM 84300. Holotype illustrated in Reid 1936:65, fig. 11a [ref. 13738]. •Valid as Microdesmus affinis Meek & Hildebrand 1928 -- (Nelson et al. 2004:173 [ref. 27807], Van Tassell 2011:146 [ref. 31732], Page et al. 2013:179 [ref. 32708], Parenti 2021:383 [ref. 38603], Page et al. 2023:125 [ref. 40505]). Current status: Valid as Microdesmus affinis Meek & Hildebrand 1928. Gobiidae: Microdesminae. Distribution: Eastern Pacific: Gulf of California (Mexico) south to Ecuador. IUCN (2010): Data Deficient. Habitat: brackish, marine.