''Kryptolebias'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

killifish A killifish is any of various oviparous (egg-laying) cyprinodontiform fish (including families Aplocheilidae, Cyprinodontidae, Fundulidae, Profundulidae and Valenciidae). All together, there are 1,270 species of killifish, the biggest family ...

in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Rivulidae The Rivulidae are a family of killifishes in the order Cyprinodontiformes. They are commonly known as rivulids, South American killifish or New World killifish. The latter names are slightly misleading, however, as they are neither restricted to ...

mostly native to warm parts of South America but with one species (''K. marmoratus'') found north through the Caribbean region to the Gulf Coast states of the United States. They are small fish, up to in

total length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish ...

. They are non-annual

. The genus was originally name ''Cryptolebias'' but this name was pre-occupied by a genus of fossil fish.

Species

There are currently 8 recognized species in this genus: * '' Kryptolebias brasiliensis''

Valenciennes Valenciennes (, also , , ; nl, label=also Dutch, Valencijn; pcd, Valincyinnes or ; la, Valentianae) is a commune in the Nord department, Hauts-de-France, France. It lies on the Scheldt () river. Although the city and region experienced a s ...

, 1821 * ''

Kryptolebias campelloi ''Kryptolebias'' is a genus of killifish in the family Rivulidae mostly native to warm parts of South America but with one species (''K. marmoratus'') found north through the Caribbean region to the Gulf Coast states of the United States. They ...

'' W. J. E. M. Costa, 1990 * '' Kryptolebias caudomarginatus'' Seegers, 1984 * '' Kryptolebias gracilis'' W. J. E. M. Costa, 2007 * '' Kryptolebias hermaphroditus'' W. J. E. M. Costa, 2011 * ''

Kryptolebias marmoratus The mangrove killifish or mangrove rivulus, ''Kryptolebias marmoratus'' ( syn. ''Rivulus marmoratus''), is a species of killifish in the family Rivulidae. It lives in brackish and marine waters (less frequently in fresh water) along the coasts o ...

'' Poey, 1880 (Mangrove rivulus) * '' Kryptolebias ocellatus'' R. F. Hensel, 1868 * '' Kryptolebias sepia'' Vermeulen & Hrbek, 2005

References

Rivulidae Fish of South America Tropical fish Freshwater fish genera {{Cyprinodontiformes-stub