Fluviphylax (Whitley, 1965)  7 Arten

Some Fish Genera scrutinized. Proc. Zool. Soc. New South Wales: 25.

Myers & Carvalho, in: Myers 1955 intruduced the genus name Potamophylax for this genus but it was a pe-occupied by an insect in the family Neuropteridae, Wallegren 1891

Type-species: by being a replacement name as Potamophylax pygmaeus Myers & Carvalho, 1955.

Type locality: middle Amazon (Borba, lower rio Madeira, subseq.), Amazonas, Brasil.

Foto: http://www.itrainsfishes.net/content/species/fluviphylax_obscurus_gr03.jpg

Fluviphylax pygmaeus, (Myers and Carvalho, in: Myers 1955)

Myers & Carvalho, in: Myers G.S. 1955. Notes on the classification and names of Cyprinodont fishes. Tropical Fish Magazin, San Francisco, 4 (4): 7.

Type locality: middle Amazon (Borba, lower rio Madeira, subseq.), Amazonas, Brasil.

Fluviphylax obscurus, Costa 1996

Costa, W.J.E.M. 1996.  Relationships, monophyly and three new species of the neotropical miniature poeciliid genus Fluviphylax (Cyprinodontiformes: Cyprinodontoidei).

Type locality: rio Negro, Barcelos, estado do Amazonas, Brasil.
Distribution: Upper Negro River basin, Brazil.

Fluviphylax palikur, Costa & Le Bail, 1999

Costa, W.J.E.M. and P.-Y. Le Bail 1999. Fluviphylax palikur: a new poeciliid from the Rio Oiapoque Basin, Northern Brazil (Cyprinodontiformes: Cyprinodontoidei), with comments on miniaturization in Fluviphylax and other neotropical freshwater fishes. Copeia (4):1027-1034.

Type locality: Juminan, rio Taparabu, right tributary to rio Oiapoque, Amapa, Brasil.

Distribution: Lower Oyapock River basin, Brazil

Fluviphylax simplex, Costa 1996

Costa, W.J.E.M. 1996. Relationships, monophyly and three new species of the neotropical miniature poeciliid genus Fluviphylax (Cyprinodontiformes: Cyprinodontoidei). Ichthyol.

Explor. Freshwat. 7(2):111-130.

Type locality: Igarapé of lake José-Açu, Parintins, estado do Amazonas, Brasil.

Distribution: Solimõs-Amazonas River and lower Trombetas and Tapajós rivers, Brazil.

Fluviphylax zonatus, Costa 1996 

Costa, W.J.E.M. 1996. Relationships, monophyly and three new species of the neotropical miniature poeciliid genus Fluviphylax (Cyprinodontiformes: Cyprinodontoidei). Ichthyol.

Explor. Freshwat. 7(2):111-130.

Type locality: rio Negro, Anavilhanas, estado do Amazonas, Brasil.

Distribution: Lower Negro River and tributaries, Brazil. 

Fluviphylax gouldingi & Fluviphylax wallacei (Pedro Bragança, 2018)

Fluviphylax gouldingi and F. wallacei, two new miniature killifishes from the middle and upper Rio Negro drainage, Brazilian Amazon

Abstract: 

Pedro Henrique Negreiros de Bragança Bragança, P. H. N. 2018. Fluviphylax gouldingi and F. wallacei, two new miniature killifishes from the middle and upper Rio Negro drainage, Brazilian Amazon (Teleostei, Cyprinodontiformes, Cyprinodontoidei). Spixiana 41 (1): 133-146. Fluviphylax gouldingi spec. nov. from the upper Rio Negro drainage and F. wal­ lacei spec. nov. from the middle Rio Negro drainage, Rio Amazonas basin, northern Brazil, are described. Fluviphylax gouldingi is distinguished from all other species of Fluviphylax in having a sharp ventral process in the opercle, a narrow subopercle and interopercle, a filamentous second pelvic-fin ray, absence of mesethmoid and the presence of an orange bright blotch on the preorbital region of both males and females. Fluviphylax wallacei differs from all congeners in having a sexual dimorphic pattern of the cephalic lateral line system and by the presence of a pointed dorsal fin in males. Fluviphylax gouldingi and F. wallacei differ from all congeners by the presence of a slender retroarticular, a triangular opercle, an orange colouration on the posterior region of the pectoral fin in males and the head free neuromasts placed at the same level of head surface. The genus Fluviphylax is diagnosed by the presence of eye extremely large, absence of vomer, absence of interarcual cartilage, absence of interhyal, derived shape of maxilla, basihyal cartilage enlarged, reduction of caudalfin rays and cephalic sensory system, and a unique colour pattern, consisting of melanophores concentrated on dorsal and ventral midlines of body. 

Info: