''Campellolebias'' is a genus of

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

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 ...

from southeast Brazil. They are restricted to seasonal blackwater pools in forests in coastal parts of Santa Catarina and

São Paulo São Paulo (, ; Portuguese for 'Saint Paul') is the most populous city in Brazil, and is the capital of the state of São Paulo, the most populous and wealthiest Brazilian state, located in the country's Southeast Region. Listed by the GaWC a ...

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 ...

. Uniquely among

, ''Campellolebias'' and the closely related '' Cynopoecilus'' have

internal fertilization Internal fertilization is the union of an egg and sperm cell during sexual reproduction inside the female body. Internal fertilization, unlike its counterpart, external fertilization, brings more control to the female with reproduction. For inter ...

. A part of the males'

anal fin Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as se ...

forms a "pseudo-

gonopodium Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as se ...

" that is used for inseminating the female.

Species

There are currently four recognized species in this genus: * '' Campellolebias brucei'' Vaz Ferreira & Sierra de Soriano, 1974 (Swordfin killifish) * '' Campellolebias chrysolineatus'' W. J. E. M. Costa, Lacerda & G. C. Brasil, 1989 * '' Campellolebias dorsimaculatus'' W. J. E. M. Costa, Lacerda & G. C. Brasil, 1989 * '' Campellolebias intermedius'' W. J. E. M. Costa & De Luca, 2006

Etymology

The generic name ''Campellolebias'' is a combination of Campello, which honours the Brazilian

chemical engineer In the field of engineering, a chemical engineer is a professional, equipped with the knowledge of chemical engineering, who works principally in the chemical industry to convert basic raw materials into a variety of products and deals with the ...

aquarist An aquarist is a person who manages aquariums, either professionally or as a hobby. They typically care for aquatic animals, including fish and marine invertebrates. Some may care for aquatic mammals. Aquarists often work at public aquariums. They ...

and amateur

ichthyologist Ichthyology is the branch of zoology devoted to the study of fish, including bony fish ( Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 33,400 species of fish had been described as of Octobe ...

Gilberto Campello Brasil (1945-2008) and ''lebias'' a

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

word for a small fish which was applied to Killifish by

Georges Cuvier Jean Léopold Nicolas Frédéric, Baron Cuvier (; 23 August 1769 – 13 May 1832), known as Georges Cuvier, was a French natural history, naturalist and zoology, zoologist, sometimes referred to as the "founding father of paleontology". Cuvier ...

and is now used a root for names within the order

Cyprinodontiformes Cyprinodontiformes is an order of ray-finned fish, comprising mostly small, freshwater fish. Many popular aquarium fish, such as killifish and live-bearers, are included. They are closely related to the Atheriniformes and are occasionally inc ...

. Vaz Ferreira & Sierra de Soriano described Campello Brasil as an “enthusiastic scholar” of Brazilian killifishes and he also collected specimens, sending them to the Vaz Ferreira & Sierra de Soriano.

References

Rivulidae Freshwater fish genera Taxonomy articles created by Polbot {{Cyprinodontiformes-stub