kessleri, Arius Steindachner [F.] 1876:574 [24], Pl. 5 [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 72 (1. Abth.); ref. 18772] Altata, (Pacific) Panama. Syntypes: (several) MCZ 4944 (6); NMW 48112 (1), 48247-49 (1, 1, 2). Type catalog: Ferraris 2007:50 [ref. 29155]. On p. 24 of separate. •Valid as Arius kessleri Steindachner 1876 -- (Allen & Robertson 1994:67 [ref. 22193], Bussing & López S. 1994:62 [ref. 23101], Kailola & Bussing in Fischer et al. 1995:869 [ref. 22829], Castro-Aguirre et al. 1999:151 [ref. 24550], Acero P. & Betancur-R. 2002:133 [ref. 26190]). •Valid as Hexanematichthys kessleri (Steindachner 1876) -- (Marceniuk & Ferraris in Reis et al. 2003:451 [ref. 27061]). •Valid as Ariopsis kessleri (Steindachner 1876) -- (Nelson et al. 2004:82 [ref. 27807]). •Valid as Aspistor kessleri (Steindachner 1876) -- (Kailola 2004:128 [ref. 28108]). •Valid as Notarius kessleri (Steindachner 1876) -- (Betancur-R. & Acero P. 2004:18 [ref. 28008], Betancur-R. & Acero P. 2006:55 [ref. 28736], Marceniuk & Menezes 2007:83 [ref. 29031], Ferraris 2007:50 [ref. 29155], Betancur-R. et al. 2007:349 [ref. 29268], McMahan et al. 2013:445 [ref. 32422], Page et al. 2013:82 [ref. 32708], Jiménez-Prado et al. 2015:400 [ref. 34894], Marceniuk et al. 2017:276 [ref. 35197], Marceniuk et al. 2023:15 [ref. 40422], Page et al. 2023:78 [ref. 40505]). Current status: Valid as Notarius kessleri (Steindachner 1876). Ariidae: Ariinae. Distribution: Eastern Pacific: Mexica south to Panama. Habitat: brackish, marine.