Australoheros sanguineus sp. n. - a new cichlid species from the rio Cubat&amp;atilde;o&amp;nbsp;basin, southern Brazil (Cichlidae: Heroini)

Ottoni, Felipe Polivanov

doi:10.3897/vz.63.e31423

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…Australoheros sanguineus é endêmica do Brasil e ocorre nas bacias costeiras desde a baía de Paranaguá, no estado do Paraná, até a bacia do rio Tubarão, no estado de Santa Catarina (Ottoni, 2013;Shibatta et al, 2013).…”

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Ficha de Australoheros sanguineus

André Luiz Netto Ferreira,

Carla Simone Pavanelli,

Fernando Camargo Jerep

et al. 2023

Datasets - Sistema SALVE - ICMBio

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Australoheros sanguineus é endêmica do Brasil e está distribuída em bacias costeiras desde a baía de Paranaguá, no estado do Paraná, até a bacia do rio Tubarão, no estado de Santa Catarina. Parte substancial do rio Cubatão está inserido em uma região densamente povoada e, portanto, está sujeito a diversos impactos antrópicos relacionados à urbanização. Apesar dos impactos na bacia do rio Cubatão e outras bacias costeiras do estado de Santa Catarina representarem uma ameaça potencial à espécie, no momento elas não foram consideradas significativas. Portanto, Australoheros sanguineus foi categorizada como Menos Preocupante (LC).

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“…A espécie é descrita do arroio Lindo, bacia do rio Cubatão, município de Joinville, estado de Santa Catarina (Ottoni, 2013)…”

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Ficha de Australoheros sanguineus

André Luiz Netto Ferreira,

Carla Simone Pavanelli,

Fernando Camargo Jerep

et al. 2023

Datasets - Sistema SALVE - ICMBio

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New haplochromine cichlid from the upper Miocene (9–10 MYA) of Central Kenya

2020

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Background: The diversification process known as the Lake Tanganyika Radiation has given rise to the most speciose clade of African cichlids. Almost all cichlid species found in the lakes Tanganyika, Malawi and Victoria, comprising a total of 12-16 tribes, belong to this clade. Strikingly, all the species in the latter two lakes are members of the tribe Haplochromini, whose origin remains unclear. The 'out of Tanganyika' hypothesis argues that the Haplochromini emerged simultaneously with other cichlid tribes and lineages in Lake Tanganyika, presumably about 5-6 million years ago (MYA), and that their presence in the lakes Malawi and Victoria and elsewhere in Africa today is due to later migrations. In contrast, the 'melting pot Tanganyika hypothesis' postulates that Haplochromini emerged in Africa prior to the formation of Lake Tanganyika, and that their divergence could have begun about 17 MYA. Haplochromine fossils could potentially resolve this debate, but such fossils are extremely rare. Results: Here we present a new fossil haplochromine from the upper Miocene site Waril (9-10 million years) in Central Kenya. Comparative morphology, supported by Micro-CT imaging, reveals that it bears a unique combination of characters relating to dentition, cranial bones, caudal skeleton and meristic traits. Its most prominent feature is the presence of exclusively unicuspid teeth, with canines in the outer tooth row. †Warilochromis unicuspidatus gen. et sp. nov. shares this combination of characters solely with members of the Haplochromini and its lacrimal morphology indicates a possible relation to the riverine genus Pseudocrenilabrus. Due to its fang-like dentition and non-fusiform body, †W. unicuspidatus gen. et sp. nov. might have employed either a sit-and-pursue or sit-and-wait hunting strategy, which has not been reported for any other fossil haplochromine cichlid. Conclusions: The age of the fossil (9-10 MYA) is incompatible with the 'out of Tanganyika' hypothesis, which postulates that the divergence of the Haplochromini began only 5-6 MYA. The presence of this fossil in an upper Miocene palaeolake in the Central Kenya Rift, as well as its predatory lifestyle, indicate that Haplochromini were already an important component of freshwater drainages in East Africa at that time.

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Conjectures and refutations: Species diversity and phylogeny of Australoheros from coastal rivers of southern South America (Teleostei: Cichlidae)

et al. 2022

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Morphological and genetic analyses of species of Australoheros focusing on those distributed in coastal rivers from the Rio de La Plata north to the Rio Buranhém, support recognition of 17 valid species in the genus. Eight species are represented in coastal rivers: A acaroides, A. facetus, A. ipatinguensis, A. oblongus, A. ribeirae, and A. sanguineus are validated from earlier descriptions. Australoheros mboapari is a new species from the Rio Taquari in the Rio Jacuí drainage. Australoheros ricani is a new species from the upper Rio Jacuí. Specimens from the Rio Yaguarón and Rio Tacuary, affluents of Laguna Merín, and tributaries of the Rio Negro, tributary of the Rio Uruguay are assigned to A. minuano pending critical data on specimens from the type locality of A. minuano. Australoheros taura is a junior synonym of A. acaroides. Australoheros autrani, A. saquarema, A. capixaba, A. macaensis, A. perdi, and A. muriae are junior synonyms of A. ipatinguensis. Heros autochthon, A. mattosi, A. macacuensis, A. montanus, A. tavaresi, A. paraibae, and A. barbosae, are junior synonyms of A. oblongus. Heros jenynsii is a junior synonym of A. facetus.

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Australoheros sanguineus sp. n. - a new cichlid species from the rio Cubatão basin, southern Brazil (Cichlidae: Heroini)

Cited by 5 publications

References 6 publications

Ficha de Australoheros sanguineus

Ficha de Australoheros sanguineus

New haplochromine cichlid from the upper Miocene (9–10 MYA) of Central Kenya

Conjectures and refutations: Species diversity and phylogeny of Australoheros from coastal rivers of southern South America (Teleostei: Cichlidae)

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