Kryptolebias - Arten (ersetzt Cryptolebias Costa, 2004)


Kryptolebias, new name, is proposed to replace Cryptolebias Costa, 2004, preoccupied by Cryptolebias Gaudant, 1978, a monotypic genus of European fossil fish. As a consequence, Kryptolebiatinae is erected, substituting Cryptolebiatinae Costa.


Cryptolebias Costa, 2004 was recently erected to include an assemblage of species previously placed in Rivulus Poey, 1960. This assemblage was hypothesized to be the sister group of the clade including all other rivulids, receiving subfamily status, and consequently Cryptolebias was formally designated as the type-genus of the Cryptolebiatinae (Costa, 2004). However, Cryptolebias is preoccupied.

The name was first published for a monotypic genus of fossil cyprinodontoid fish from Europe by Gaudant

(1978). Herein, it is proposed the name Kryptolebias as a substitute generic name for Cryptolebias Costa, 2004, with Fundulus brasiliensis Valenciennes, 1821 as the typespecies. Consequentely, it is proposed the new subfamily name Kryptolebiatinae for the family level taxon containing Kryptolebias, as the type-genus.

Included species. Kryptolebias brasiliensis (Valenciennes),



Kryptolebias   (8 Arten)


Kryptolebias campelloi (Costa, 1990)

Description d'une nouvelle Espèce du Genre Rivulus (Cyprinodontiformes, Rivulidae) de l'Amazone orientale. Rev. fr. Aquariol. Herpétol., 17 (2): 42, fig. 1.

Type locality: near Primavera, south of Amazone delta, Pará state, northeastern Brasil.

Kryptolebias bonairensis (Hoedeman 1958)

Kryptolebias, a subsitute name for Cryptolebias Costa, 2004 and Kryptolebiatinae, a subsitute name for Cryptolebiatinae Costa, 2004 (Cyprinodontiformes: Rivulidae). Neotrop. Ichthyol. 2(2):107-

Rivulid Fishes of the Antilles. Stud. Fauna Curaçao, 32: 117.


Type locality: Pos di Pepe, Bonaire, Netherland Antilles (about 100 km off the Venezuelan coast).


Kryptolebias brasiliensis (Valenciennes, 1821)

Recherches sur les Poissons fluviatiles de l'Amérique équinoxiale. In: F.H.A. Humboldt & A. Valenciennes. Voyage de Humboldt et Bonpland. Schoell & Dufour Eds. Paris. Zoologie, Vol. II.: 163, pl. 52 (figs. 3, 7).

Type locality: Brasil (without details ; actually, surroundings of Rio de Janeiro, subseq.).


Kryptolebias garciai (De la Cruz & Dubitsky 1976)

Dos Nuevas Especies de Peces dulceacuicolas del Genero Rivulus Poey (Cyprinodontidae) de Cuba e Isla de Pinos. Poeyana, 155: 4.

Type locality: Matanzas, Varadero, Cuba.

Kryptolebias gracilis  (Costa, 2007)

Dos Nuevas Especies de Peces dulceacuicolas del Genero Rivulus Poey (Cyprinodontidae) de Cuba e Isla de Pinos. Poeyana, 155: 4.

Type locality: Matanzas, Varadero, Cuba.


Kryptolebias marmoratus, (Poey, 1880)

Revisio piscium cubensium. Anal. Soc. Espanola Hist. Nat., 9: 248.

Type locality: Cuba (if not from the USA), upper Caribbean archipelago (without details ; probably close to Habana).


Kryptolebias hermaphroditus, (Costa 2011)

First record of a male of Kryptolebias hermaphroditus Costa, 2011 (Cyprinodontiformes: Cynolebiidae)


During an ichthyological survey in September 2015 at the Ceará-Mirim River estuary, Rio Grande do Norte State, northeastern Brazil, we collected a male of Kryptolebias hermaphroditus , a cynolebiid species that had been previously described as containing exclusively self-fertilizing hermaphrodites. This is the first record of a male in this species, over 140 years after the discovery of the mangrove rivulid species from Brazil. Our discovery reinforces the need for more studies in K. hermaphroditus , as well as the potential of this species as a model for evolutionary studies due to its unique mating system.


Kryptolebias sepia Vermeulen & Hrbek, 2005

Kryptolebias sepia n. sp. (Actinopterygii: Cyprinodontiformes: Rivulidae), a new Killifish from the Tapanahony River drainage in southeast Surinam. Zootaxa, 928: 4, figs. 1-2.

Type locality: 5 km down river from Palumeu on the right bank, a hunting trail leads to a creek 15 minutes walk from the river, Upper Marowijne system, Tapanahony River, (southern) Suriname.



A new genus of miniature cynolebiasine from the Atlantic Forest and alternative biogeographical explanations for seasonal killifish distribution patterns in

South America (Cyprinodontiformes: Rivulidae)  (Costa 2014)


Vertebrate zoology 64 (1): 23–33 / 16.05.2014


Abstract The analysis of 78 morphological characters for 16 species representing all the lineages of the tribe Cynopoecilini and three out-groups, indicates that the incertae sedis miniature species ‘Leptolebias’ leitaoi Cruz & Peixoto is the sister group of a clade comprising the genera Leptolebias, Campellolebias, and Cynopoecilus, consequently recognised as the only member of a new genus. Mucurilebias gen. nov. is diagnosed by seven autapomorphies: eye occupying great part of head side, low number of caudal-fin rays (21), distal portion of epural much broader than distal portion of parhypural, an oblique red bar through opercle in both sexes, isthmus bright red in males, a white stripe on the distal margin of the dorsal fin in males, and a red stripe on the distal margin of the anal fin in males. Mucurilebias leitaoi is an endangered seasonal species endemic to the Mucuri river basin. The biogeographical analysis of genera of the subfamily Cynolebiasinae using a dispersal-vicariance, event-based parsimony approach indicates that distribution of South American killifishes may be broadly shaped by dispersal events. The analysis supports south-eastern Brazilian coastal plains as the centre of dispersal for cynolebiasine killifishes. Alternative biogeographical explanations are compared and possible dispersal routes and means of dispersal are discussed.