Atractosteus (subgenus of Lepisosteus) Rafinesque [C. S.] 1820:171 Masc. Lepisosteus (Atractosteus) ferox Rafinesque 1820. Type by monotypy. Also in Rafinesque 1820:75 (Dec.) [ref. 3592]. See Grande 2010:292 [ref. 31167] for included fossil synonyms. The unused name Litholepis Rafinesque 1818 is in the synonymy of Atractosteus Rafinesque 1820; the latter is here regarded as a nomen protectum due to prevailing usage. •Synonym of Lepisosteus Lacepède 1803 -- (Suttkus 1963:69 [ref. 7110]). •Valid as Atractosteus Rafinesque 1820 -- (Wiley 1976:61 [ref. 7091]); or a valid subgenus of Lepisosteus (e.g., Robins et al. 1980:70 [ref. 7111]). •Valid as Atractosteus Rafinesque 1820 -- (Wiley 2003:673 [ref. 26988], Ferraris in Reis et al. 2003:29 [ref. 27061], Grande 2010:292 [ref. 31167], Wright et al. 2012:850 [ref. 32445]. Angulo et al. 2013:989 [ref. 33194], Esmaeili et al. 2018:7 [ref. 36089]). Nomen Protectum. Current status: Valid as Atractosteus Rafinesque 1820. Lepisosteidae.