formosum, Microsicydium Herre [A. W. C. T.] 1927:297, Pl. 23 (fig. 3) [Monographs, Bureau of Science Manila Monogr. 23; ref. 2104] Titunod, a small stream near Kolambugan, Lanao Province, Mindanao, Philippines. Holotype (unique): BSMP 12443 (destroyed, seen by Koumans). Type catalog: Koumans 1940:192 [ref. 2676]. •Synonym of Stiphodon atropurpureus (Herre 1927) -- (Watson & Kottelat 1995:4 [ref. 21671], Maeda et al. 2011:319 [ref. 32002], Kottelat 2013:430 [ref. 32989] with question, Keith et al. 2015:182 [ref. 34328]). Current status: Synonym of Stiphodon atropurpureus (Herre 1927). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.