Kryptolebiasinae

Loureiro, Marcelo, Sá, Rafael de, Serra, Sebastián W., Alonso, Felipe, Lanés, Luis Esteban Krause, Volcan, Matheus Vieira, Calviño, Pablo, Nielsen, Dalton, Duarte, Alejandro & Garcia, Graciela, 2018, Review of the family Rivulidae (Cyprinodontiformes, Aplocheiloidei) and a molecular and morphological phylogeny of the annual fish genus Austrolebias Costa 1998, Neotropical Ichthyology 16 (3), pp. 1-20 : 3

Kryptolebiasinae. This is a clade composed by a single genus with seven valid non-annual species, distributed in theAtlantic coastal basins and estuaries from Florida ( USA) to southern Brazil. Three androdioecius species conform a monophyletic unit within the genus ( Vermeulen, Hrbek, 2005; Costa et al., 2010) that inhabit mangroves; two of them with clear evidence of self-fertilization ( Tatarenkov et al., 2011). Costa (2004) proposed two synapomorphies for Kryptolebias : a dorsally expanded flange on dorsal tip of the autopalatine ( Fig. 1a ) and a vestigial or absent anterodorsal process of urohyal ( Fig. 2a ).

Figures

Fig. 1. Suspensorium of a. Kryptolebias caudomarginatus (Seegers) (modified from Costa, 1998), b. Pterolebias longipinnis Garman, c. Papiliolebias bitteri (Costa), d. Cynopoecilus melanotaenia (Reagan), e. Ophthalmolebias constanciae (Myers), f. Austrolebias vazferreirai (Berkenkamp, Etzel, Reichert & Salvia). “a” = autopalatine, hy = hyomandibula, “mrpr” = median rim of preopercle, “ms” = mesopterygoid, “mt” = metapterygoid, “pro” = preopercle, “q” = quadrate, “sy” = symplectic. Scale bar = 1 mm.

Fig. 2. Urohyal bone of a. Kryptolebias brasiliensis (modified from Costa, 2004), b. Atlantirivulus aff. paranaguensis, c. Cynopoecilus melanotaenia, d. Ophthalmolebias constanciae, e. Austrolebias juanlangi, f. Austrolebias wolterstorffi; adp = anterodorsal process. Scale bar = 1 mm.