argulus, Syngnathus Peters [W. (C. H.)] 1855:278 [Archiv für Naturgeschichte v. 21 (pts 2-3); ref. 13448] Streams of St. Johanna, Anjoana Island, Comoro Islands. Syntypes: (2) ZMB 6232 (1). Replacement name for Syngnathus argus Peters 1852, preoccupied by Richardson 1840. Commented on in Peters 1855:465 [ref. 3449], but explicit replacement found only here. •Valid as Microphis argulus (Peters 1855) -- (Dawson 1984:125 [ref. 5879], Dawson 1985:130 [ref. 6541], Dawson 1986:285 [ref. 6201], Kottelat et al. 1993:99 [ref. 23448], Senou et al. 1995:2 [ref. 24599], Marquet et al. 1999:43 [ref. 23934], Fricke 1999:152 [ref. 24106], Paulus 1999:2271 [ref. 24794] as angulus, Nakabo 2000:527 [ref. 25086], Randall & Earle 2000:10 [ref. 25806], Sakai et al. 2001:91 [ref. 25693], Keith et al. 2002:98 [ref. 31473], Nakabo 2002:527 [ref. 26001], Fricke 2004:47 [ref. 28269], Kuiter 2009:271 [ref. 30404], Fricke et al. 2011:376 [ref. 31242], Hamilton et al. 2016:Supplement 4 [ref. 35615], Moots 2022:480 [ref. 39722], Haÿ et al. 2023:24 [ref. 40264], Ito et al. 2023:[3] 121 [ref. 40370]). •Valid as Coelonotus argulus (Peters 1855) -- (Kottelat 2013:302 [ref. 32989], Delrieu-Trottin et al. 2015:5 [ref. 33988], Fricke et al. 2018:121 [ref. 35805], Keith et al. 2021:42 [ref. 38257], Haÿ et al. 2022:276 [ref. 39015]). Replacement Name. Current status: Valid as Coelonotus argulus (Peters 1855). Syngnathidae: Nerophinae. Distribution: Indo-West Pacific: Comoros, Madagascar and western Mascarenes (La Réunion, Mauritius) east to Marquesas Islands, north to central Japan. Habitat: freshwater, brackish, marine.