leptocephalus, Cynolebias Costa [W. J. E. M.] & Brasil [G. C.] 1993:196, Figs. 4-5 [Ichthyological Exploration of Freshwaters v. 4 (no. 3); ref. 21101] Swamp near Guanambí, 14°20'S, 42°51'W, rio São Francisco basin, Bahia State, Brazil. Holotype: MZUSP 43676. Paratypes: MZUSP 43677 (1); UFRJ 687 (2), 688 (1). •Valid as Cynolebias leptocephalus Costa & Brasil 1993 -- (Costa 1995:126 [ref. 22097], Costa 1998:238 [ref. 23578], Costa 1998:76 [ref. 23792], Lazara 2001:77 [ref. 25711], Costa 2001:372 [ref. 25719], Costa in Reis et al. 2003:529 [ref. 27061], Costa 2009:147 [ref. 30511], Costa 2014:80 [ref. 33510], Silva et al. 2020:14 [ref. 37809]). Current status: Valid as Cynolebias leptocephalus Costa & Brasil 1993. Rivulidae: Cynolebiinae. Distribution: South America: middle São Francisco River basin (Brazil). Habitat: freshwater.