aruana, Cynolebias Lazara [K. J.] 1991:147, Figs. 4-5 [Journal of the American Killifish Association v. 23 (no. 5); ref. 20508] Temporary pool, Aruana, Goiás State, Brazil. Holotype: MZUSP 38794. Paratypes: AMNH 59191 (18), 59288 (34, 18 c&s); MHNM 3102:1-10 (10); MZUSP 38795-804 (10). •Valid as Plesiolebias aruana (Lazara 1991) -- (Costa 1995:30 [ref. 22097], Costa 1995:73 [ref. 21612], Costa 1998:325 [ref. 23324], Costa 1998:81 [ref. 23792], Costa & Le Bail 1999:1028 [ref. 24187], Lazara 2001:257 [ref. 25711], Costa et al. 2003:144 [ref. 26946], Costa in Reis et al. 2003:533 [ref. 27061]). Current status: Valid as Plesiolebias aruana (Lazara 1991). Rivulidae: Rivulinae. Distribution: Araguaia-Tocantins River basin, Brazil. Habitat: freshwater.