pygmaeus, Micrognathus Fritzsche [R. A.] 1981:771, Fig. 1 [Proceedings of the Biological Society of Washington v. 94 (no. 3); ref. 8600] Lagoon 1-2 kilometers east of Papeete, Taone, Tahiti, Society Islands, depth about 3 meters. Holotype: USNM 207933. Paratypes: USNM 215775 (1). •Synonym of Micrognathus brevirostris (Rüppell 1838) -- (Paxton et al. 1989:425 [ref. 12442]). •Synonym of Micrognathus brevirostris (Rüppell 1838), but a valid subspecies -- (Dawson 1982:668 [ref. 5441], Dawson 1985:123 [ref. 6541], Senou & Yano 1999:2 [ref. 24392], Myers 1999:94 [ref. 23965], Paulus 1999:2271 [ref. 24794], Allen 2000:86 [ref. 37268], Nakabo 2000:529 [ref. 25086], Nakabo 2002:529 [ref. 26001], Myers & Donaldson 2003:618 [ref. 27495]). •Valid as Micrognathus pygmaeus Fritzsche 1981 -- (Allen & Adrim 2003:28 [ref. 26830], Fricke 2004:47 [ref. 28269], Paxton et al. 2006:834 [ref. 29073], Kuiter 2009:233 [ref. 30404], Fricke et al. 2011:376 [ref. 31242], Allen & Erdmann 2012:208 [ref. 31980], Fricke et al. 2014:47 [ref. 33932], Hamilton et al. 2016:Supplement 2 [ref. 35615], Fricke et al. 2019:95 [ref. 36673]). Current status: Valid as Micrognathus pygmaeus Fritzsche 1981. Syngnathidae: Syngnathinae. Distribution: Eastern Indian Ocean, western Pacific: Christmas Island and Indonesia east to Marshall and Society Islands, south to Solomon Islands. Habitat: marine.