Kryptolebias, a substitute name for Cryptolebias Costa, 2004 and Kryptolebiatinae, a substitute name for Cryptolebiatinae Costa, 2004 (Cyprinodontiformes: Rivulidae)

Abstract

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.<br>Kryptolebias, nome novo, é proposto em substituição à Cryptolebias Costa, 2004, preocupado por Cryptolebias Gaudant, 1978, um gênero monotípico de peixe fossil europeu. Em consequência, Kryptolebiatinae é proposto, em substituição à Cryptolebiatinae Costa

Kin and familiarity influence association preferences and aggression in the mangrove killifish Kryptolebias marmoratus

“…Very little is known, however, about the role of familiarity and kinship in the decisions of species of fishes that predominately form aggregations during refuging behaviour (Griffiths et al , 2003). In the current study, the role of kinship and familiarity in structuring social interactions is examined in a refuging species, the mangrove killifish Kryptolebias marmoratus (Poey 1880) (formerly Rivulus marmoratus ; Costa, 2004). Kryptolebias.…”

Association behaviour of the self‐fertilizing Kryptolebias marmoratus (Poey): the influence of microhabitat use on the potential for a complex mating system

“…Kryptolebias marmoratus (formerly Rivulus marmoratus ; Costa, 2004) is a small, cryptic rivulid fish capable of internal self‐fertilization (Harrington, 1961). Selfing may be the dominant form of reproduction in K. marmoratus as most populations that have been investigated are highly homozygous.…”

“…There is sexual dichromatism in K. marmoratus. Hermaphrodites are mottled grey‐brown and have a distinct caudal ocellus that is typical of females in the genus Kryptolebias , while the males have an orange wash over their body and commonly possess black margins on their unpaired fins and lack a caudal ocellus (Huber, 1992; Soto & Noakes, 1994; Costa, 2004).…”

Long-term retention of self-fertilization in a fish clade

“…The genus Kryptolebias (15) contains four to eight named species (depending on the degree of taxonomic splitting) that constitute a distinct clade of killifishes, Rivulidae. To evaluate the presence or absence and the rate of selfing, we screened microsatellite loci in populations of four nominal Kryptolebias species (Table 1): the sister taxa K. marmoratus and Kryptolebias ocellatus; Kryptolebias caudomarginatus, the closest phylogenetic outlier to that clade; and a more distant relative, Kryptolebias brasiliensis (16,17).…”