asellus, Chelichthys Müller [J.] & Troschel [F. H.] 1849:641 [Reisen in Britisch-Guiana; ref. 3072] Barama River, northwestern Guyana. No types known. •Valid as Colomesus asellus (Müller & Troschel 1849) -- (Ortega & Vari 1986:21 [ref. 9708], Cervigón 1992:448 [ref. 23827], Cervigón 1996:117 [ref. 24489], Ebert 2001:19 [ref. 25494], Shipp 2003:1989 [ref. 27120], Kullander in Reis et al. 2003:670 [ref. 27061], Menezes in Menezes et al. 2003:110 [ref. 27192] dated 1848, Amaral et al. 2013:1 [ref. 33364], Phillip et al. 2013:26 [ref. 32896], Barriga Salazar 2014:119 [ref. 35745], DoNascimiento et al. 2017:103 [ref. 35633], Meza-Vargas et al. 2021:28 [ref. 39298], Rotundo et al. in Marceniuk et al. 2021:709 [ref. 38945], Carvalho-Filho 2023:285 [ref. 40480]). •Valid as Sphoeroides asellus (Müller & Troschel 1849) -- (Araujo et al. 2023:13 [ref. 40392], Hunt et al. 2023:5 [ref. 40687]). Current status: Valid as Sphoeroides asellus (Müller & Troschel 1849). Tetraodontidae. Distribution: Western Atlantic: Colombia south to Pará (Brazil). Habitat: freshwater, brackish, marine.