tropicus, Atractosteus Gill [T. N.] 1863:172 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 15; ref. 1681] Costa Rica, western coast of Central America. Holotype (unique): USNM 6806. Type catalog: Smith 2018:67 [ref. 36061]. •Valid as Atractosteus tropicus Gill 1863 -- (Wiley 1976:67 [ref. 7091], Villa 1982:73 [ref. 36708], Bussing 1987:61 [ref. 22927], Espinosa Pérez et al. 1993:8 [ref. 22290], Bussing 1998:57 [ref. 24179], Ferraris in Reis et al. 2003:29:[ref. 27061], Nelson et al. 2004:58 [ref. 27807], Miller 2006:83 [ref. 28615], Grande 2010:436 [ref. 31167], McMahan et al. 2013:443 [ref. 32422], Page et al. 2013:58 [ref. 32708], Angulo et al. 2013:989 [ref. 33194], Romero-Berny et al. 2018:88 [ref. 35859], González-Murcia et al. 2019:288 [ref. 36544], Angulo et al. 2023:12 [ref. 40676], Page et al. 2023:49 [ref. 40505]). Current status: Valid as Atractosteus tropicus Gill 1863. Lepisosteidae. Distribution: Southern Mexico and Central America: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico and Nicaragua. Habitat: freshwater, brackish.