martensii, Syngnathus Peters [W. (C. H.)] 1868:459 [Monatsberichte der Königlichen Preussischen Akademie der Wissenschaften zu Berlin 1868; ref. 7935] Pulo-Matjan [Pulau Majan], Borneo, Indonesia. Holotype (unique): ZMB 6789. •Valid as Doryichthys martensii (Peters 1868) -- (Dawson 1981:10 [ref. 5527], Dawson 1985:57 [ref. 6541], Roberts 1989:159 [ref. 6439], Lim et al. 1990:48 [ref. 16753], Kottelat et al. 1993:98 [ref. 23448], Kottelat & Lim 1996:245 [ref. 23210], Ng & Tan 1999:363 [ref. 24159], Paulus 1999:2270 [ref. 24794], Kottelat & Widjanarti 2005:164 [ref. 28284], Parenti & Lim 2005:192 [ref. 28285], Kuiter 2009:281 [ref. 30404], Kottelat 2013:303 [ref. 32989], Hamilton et al. 2016:Supplement 4 [ref. 35615], Ng et al. 2019:532 [ref. 36606], Jamandre 2023:176 [ref. 40455]). •Valid as Microphis martensii (Peters 1868) -- (Ahmad et al. 2023:118 [ref. 41243], Haÿ et al. 2023:25 [ref. 40264]). Current status: Valid as Microphis martensii (Peters 1868). Syngnathidae: Nerophinae. Distribution: Southeast Asia: Malaya (Malaysia), Thailand, Sumatra (Indonesia), Borneo, Philippines. IUCN (2024): Not Assessed. Habitat: freshwater.