atratus, Stiphodon Watson [R. E.] 1996:115, Figs. 6-9 [Revue française d'Aquariologie Herpétologie v. 23 (no. 3/4); ref. 22688] Stream at end of long narrow bay, Waigeo Island, Irian Jaya, Indonesia. Holotype: SMF 27242. Paratypes: CMK 11333 (3), 11385 (6); MZB uncat. (2); NTM S.13675-003 (25); USNM 114894 (4); WAM P.26413-001 (2), P.27788-004 (3), P.27862-006 (2), P.27862-007 (1), P.28185-012 (4), P.29613-005 (1). Type catalog: Moore et al. 2008:45 [ref. 30117]. •Valid as Stiphodon atratus Watson 1996 -- (Watson et al. 1998:293 [ref. 23658], Watson & Allen 1999:114 [ref. 24140], Larson & Murdy 2001:3603 [ref. 26293], Watson et al. 2001:42 [ref. 25349], Keith et al. 2002:188 [ref. 26363], Larson & Pidgeon 2004:197 [ref. 28107] as cf. atratus, Watson 2008:51 [ref. 29534], Keith et al. 2009:475 [ref. 30474], Maeda & Tan 2013:760 [ref. 32886], Kottelat 2013:430 [ref. 32989], Fricke et al. 2014:172 [ref. 33932], Maeda & Palla 2015:393 [ref. 33960], Maeda et al. 2015:256 [ref. 33999]). •Synonym of Stiphodon pelewensis Herre 1936 -- (Keith et al. 2015:220 [ref. 34328], Parenti 2021:428 [ref. 38603]). Current status: Synonym of Stiphodon pelewensis Herre 1936. Oxudercidae: Sicydiinae. Distribution: Papua New Guinea and Indonesia (if valid). Habitat: freshwater, brackish, marine.