Rivulus Poey. It

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 : 6

publication ID

https://doi.org/ 10.1590/1982-0224-20180007

persistent identifier

https://treatment.plazi.org/id/03A77E10-FFBF-FF9B-FF26-7EA9FC33FDAF

treatment provided by

Carolina

scientific name

Rivulus Poey. It
status

 

Rivulus Poey. It comprises at least two valid species of nonannual fishes (max. 50 mm SL) distributed in freshwater systems of Cuba ( Ponce de León et al., 2014). The genus is distinguished from other non-annual rivulines by the following synapomorphies: all hypurals fused (single plate); neural prezygapophysis of caudal vertebrae rudimentary; fourth ceratobranchial teeth absent; about 50% of anterior half of caudal fin covered by scales; four neuromasts on the anterior supraorbital series; and black round spot with white margin on the dorsoposterior portion of caudal peduncle in females ( Costa, 2011a).

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