Austrolebias (Costa 1998)

 

Phylogeny and Classification of Rivulidae revisited: Origin and Evolution of Annualism and Miniaturization in Rivulid Fishes (Cyprinodontiformes: Aplocheilidei). J. Comp. Biol., 3 (1), December: 75.

 

Type-species: by original designation as Cynolebias bellottii Steindachner, 1881.

Type locality: La Plata, Argentina.


Austrolebias accorsii D. T. B. Nielsen & Pillet, 2015 

Austrolebias accorsii, a new annual fish (Cyprinodontiformes: Rivulidae: Cynolebiatinae) from the upper rao Grande basin, Amazon basin, Bolivia. Aqua, Journal of Ichthyology and Aquatic Biology, 21 (4): 174, figs. 1-2.

Abstract:

Austrolebias accorsii new species is described from Bolivia, departamento de Santa Cruz, Rio Grande, upper Mamoré basin. This is the first record of the genus Austrolebias at the Amazon basin. Austrolebias accorsii new species is distinguished from other members of the Austrolebias bellottii species group by the following combination of characters: absence of dots or spots on body and fins (vs. presence), absence of bars on body (vs. presence), anal-fin origin between neural spines (13th-14th vs. 5th-11th) in males. Austrolebias accorsii females differ from females of other species of the Austrolebias bellottii species group by the combination of a higher number of anal-fin rays (31-32 vs. 23-30), colour pattern of the sides of body light yellowish brown, without bars; usually 1-3 black spots on anterocentral portion of flanks, surrounded by metallic green spots, black spots of random size and quantity on the posterior portion of the body to the caudal peduncle (vs. with bars, one to sixteen black spots on anterocentral portion of flanks without metallic green spots, absent black spots in peduncle caudal)..

 

 

Austrolebias adloffi (C. G. E. Ahl, 1922)

Die Gattung Cynolebias. Blätt. Aquar. -u. Terrarienk., 33 (14): 224.

Type locality: Porto Alegre, Rio Grande do Sul state, Brasil.

 

Austrolebias affinis (L. H. Amato, 1986)

Seis Especies nuevas del Genero Cynolebias Stdr, 1876, de Uruguay y Paraguay (Cyprinodontiformes, Rivulidae).

Com. Zool. Mus. Hist. Nat. Montevideo, 11 (162): 6, Pl. 3 (figs. 5-6)

Type locality: Tres Cruces creek, route 5, km 399.5, Tacuarembó, Uruguay.

Synonyme: 

Austrolebias duraznensis (G. B. García, Scvortzoff & A. Hernández, 1995)

 

Austrolebias alexandri (Castello & R. B. López, 1974)

Cynolebias alexandri, a new Species of annual Killifish from Argentina, with notes on C. bellottii. Trop. Fish Hobbyist, 23 (9): 35, fig.

Costa, W.J.E.M., 2003. Rivulidae (South American Annual Fishes). p. 526-548. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil.

Distribution:

South America: Uruguay River basin in Argentina, Brazil and Uruguay.

 

Austrolebias araucarianus (Costa, 2014) 

Austrolebias araucarianus, a new seasonal killifish from the Iguaçu river drainage, southern Brazilian Araucarian Plateau Forest (Cyprinodontiformes: Rivulidae)

Ichthyol. Explor. Freshwaters, Vol. 25, No. 2, pp. 97-101, 2 figs., 1 tab., September 2014

Abstract:

Austrolebias araucarianus, a new seasonal killifish from the Iguaçu river drainage, southern Brazilian Araucarian Plateau Forest (Cyprinodontiformes: Rivulidae)

Austrolebias araucarianus, new species, from the Iguaçu river drainage, Paraná river basin, southern Brazil, is described. The species was found in a shallow seasonal swamp, within a forest in the floodplains of a tributary to the Iguaçu river, at an altitude of about 785 m. The type locality is situated in the biogeographical province known as the Araucarian plateau forest. Austrolebias araucarianus differs from all other congeners by the unique colour pattern of males and females, pelvic fins being rudimentary or absent, and the first three neuromasts of the supraorbital series separated from the remaining neuromasts. It is considered as a member of the subgenus Acrolebias, which also includes A. carvalhoi and A. varzeae

Introduction:

The Iguaçu river drainage of the Paraná river basin in southern Brazil occupies an area of about 72 000 km2 and is an important area of endemism for freshwater fishes, as already reported since Haseman (1911). This drainage is situated within the biogeographical province known as the Araucarian Plateau Forest (e.g., Morrone, 2006), a temperate ecosystem that has its name derived from the high occurrence of the Brazilian conifer, Araucaria angustifolia. It is also probably the most endangered Brazilian ecosystem, with the original forest today represented by small isolated fragments and the river drainage highly affected by numerous dams. The only rivulid killifish reported to this region is the rare seasonal species Austrolebias carvalhoi Myers, known from a few specimens collected in the floodplains of the Iguaçu river floodplains within the urban area of the town of União da Vitória (Costa, 1998). During a recent field study to survey killifishes and to assess their conservation, a new species of Austrolebias was collected, which is herein described.

  

Austrolebias bagual (Volcan, Lanés &  Gonçalves, 2014) 

Austrolebias bagual, a new species of annual fish (Cyprinodontiformes: Rivulidae) from Southern Brazil / ResearchGate

Abstract:

Austrolebias bagual, a new species of annual fish closely related to the A. adloffi species group, is described from specimens collected from temporary ponds located in the middle course of the Rio Camaquã, Laguna dos Patos system at the municipality of Encruzilhada do Sul, Rio Grande do Sul, Brazil. The new species is distinguished from other Austrolebias species by the unique male pigmentation pattern of the dorsal fin, with black vertical bars elongated from the base to the medial portion of the fin, and by the pattern of transversal black bars on the body, which become gradually shorter and fainter towards caudal peduncle. It is also distinguished from all species of the A. adloffi species group by the lower body depth and head (except in A. rei­cherti), lower anal fin base length and caudal fin length in males, and the lower head depth (except in A. reicherti) and anal fin base length in females. In addition, A. bagual females do not have the pair of black spots arranged vertically in close proximity on the posterior portion of caudal peduncle typical of most species of the A. adloffi group.

 


Austrolebias arachan (Loureiro, Azpelicueta & G. B. García, 2004)

Austrolebias arachan (Cyprinodontiformes, Rivulidae), a new species of annual fish from northeastern Uruguay. Rev. Suisse Zool., 111 (1): 23, figs. 1-2.

Type locality: close to Route 7 and Arroyo (Creek) Chuy, Laguna Merin basin, Cerro Largo Department, (northeastern) Uruguay.

Austrolebias arachan "Chuy"


Austrolebias bellottii (Steindachner, 1881

Synonyme: 

Austrolebias apaii ( Costa, Laurino, Recuero & Salvia, 2006)

Patterns of population differentiation in annual killifishes from the Paraná–Uruguay–La Plata Basin: the role of vicariance and dispersal (Graciela García, Verónica Gutiérrez, Julia Vergara, Pablo Calviño, Alejandro Duarte & Marcelo Loureiro 2012, Journal of Biogeography

 

Abstract:

Aim  To elucidate the role of vicariance versus dispersal at the microevolutionary scale in annual killifish populations belonging to the Austrolebias bellottii species complex (Rivulidae). Within this complex, A. bellottii and A. apaii have low vagility and occur widely within the study area, making them excellent models for testing biogeographic hypotheses of differentiation.

Location  South America, in the Paraná–Uruguay–La Plata river basin.

Methods  Molecular data and morphometric analyses were used to reconstruct the phylogeographic history and morphological variation of 24 populations of two taxa of the A. bellottii species complex. Phylogenetic analyses using maximum likelihood (ML) and Bayesian inference (BI) model-based methods, estimates of clade divergence times implemented in beast, non-metric multidimensional scaling, analysis of molecular variance results, and morphological analyses elucidated the role of vicariance versus dispersal hypotheses in population differentiation in the aforementioned river basin.

Results  In the A. bellottii species complex from the Paraná–Uruguay–La Plata river basin, past allopatric fragmentation from vicariance events seems to be the most plausible scenario for diversification since the Late Miocene and more recently since the Plio-Pleistocene. The Plio-Pleistocene vicariance produced the differentiation of three major clades in A. bellottiipopulations. One clade from the eastern Uruguay River drainage was separated from another in western Uruguay and the Paraná–La Plata River drainages. A later vicariance event split populations to the south (lower Paraná–La Plata Basin) and north (middle Paraná) of the western Paraná River drainage. However, our results do not exclude the possibility of dispersal events among A. bellottii populations from both the Uruguay and Paraná river drainages, which could occur in these river basins during hypothesized connectivity cycles of the Late Pliocene and Pleistocene.

Main conclusions  Past allopatric fragmentation caused by different vicariance events seems to be the main driver of diversification in the A. bellottii species complex since the Plio-Pleistocene. However, the current molecular data suggest that populations from both drainages of the Paraná–Uruguay rivers may have experienced cycles of connectivity during the Pleistocene, perhaps including multiple vicariance or dispersal events from populations located in the western lower Uruguay River drainage, which encompassed climatic and geological changes in the Paraná–Uruguay–La Plata Basin.

 

 

Austrolebias bellottii "Villa Soriano"


Austrolebias carvalhoi (Costa, 1995)

Pearl Killifishes. The Cynolebiatinae. Systematics and Biogeography of a neotropical annual Fish Subfamily. T.F.H. Pub., Neptune City, New Jersey: 62.

Type locality: rio Iguassú (today Iguaçú) near Porto Uniao, Santa Catarina, Brasil.

 

Austrolebias charrua (Costa & Cheffe, 2001)

Three new annual Fishes of the genus Austrolebias from the Laguna dos Patos system, southern Brazil, and a redescription of A. adloffi (Ahl) (Cyprinodontiformes: Rivulidae). Comunicações Museu Ciências e Tecnologia, PUCRS, sér. Zool., Porto Alegre, 14 (2), December: 182, figs. 2-3.

Type locality: near arroio (creek) Chui, road to Barra do Chui, Rio Grande do Sul (close to Uruguay boundary), Brasil

Austrolebias cheradophilus (Vaz Ferreira, Sierra  &  Paulete, 1964)

Tres Especies nuevas del Genero Cynolebias Steindachner, 1876 (Teleostomi, Cyprinodontidae). Com. Zool. Mus. Hist. Nat. Montevideo, 8 (102): 14, pls. 3-4.

Type locality: near Arroyo Valizas, departamento Rocha, Uruguay.

 

Austrolebias cinereus (L. H. Amato, 1986)

Seis Especies nuevas del Genero Cynolebias Stdr, 1876, de Uruguay y Paraguay (Cyprinodontiformes, Rivulidae). Com. Zool. Mus. Hist. Nat. Montevideo, 11 (162): 9, pl. 6 (fig. 10).

Type locality: 2 km northwest of Las Viboras creek, on route 21, Colonia, Uruguay.

 

Austrolebias cyaneus (L. H. Amato, 1987)

Descripcion de Cynolebias cyaneus n.sp., nuevo Pez anual del Estado de Rio Grande do Sul, Brazil. Com. Zool. Mus. Hist. Nat. Montevideo, 11 (163): 2, pls. 1-2.

Type locality: floodlands of Dom Marcos creek, municipio de Río Pardo, Río Grande do Sul, Brasil.

 

Austrolebias elongatus (Steindachner, 1881)

Megalebias elongatus -Sitzung der mathematisch-naturwissenschaftlichen Klasse von 5 Mai 1881. Anz. Akad. Wiss. Wien, 18 (11): 98.

Type locality: La Plata, Argentina.

 

Austrolebias gymnoventris (L. H. Amato, 1986)

Seis Especies nuevas del Genero Cynolebias Stdr, 1876, de Uruguay y Paraguay (Cyprinodontiformes, Rivulidae). Com. Zool. Mus. Hist. Nat. Montevideo, 11 (162): 2, pl. 1.

Type locality: India Muerta creek, 150 m from the bridge on route 13, near Velázquez, Rocha, Uruguay.

 

Austrolebias ibicuiensis (W. J. E. M. Costa, 1999)

Cynolebias ibicuiensis, a new annual Fish from the Rio Ibicu Basin, southern Brazil (Cyprinodontiformes: Rivulidae). Rev. fr. Aquariol. Herpétol., 25 (1998), (3-4): 93.

Type locality: between Sao Pedro do Sul and Santa Maria (road BR-287), rio Ibicui-Mirim, Ibicui basin, Rio Grande do Sul, Brasil.

 

Austrolebias jaegari W. J. E. M. Costa & Cheffe, 2002

Austrolebias jaegari (Cyprinodontiformes: Rivulidae: Cynolebiatinae): a new annual Fish from the Laguna dos Patos system, southern Brazil, with a Redescription of A. gymnoventris (Amato). Aqua, Journal of Ichthyology and Aquatic Biology, 6 (2), 84, figs. 1-2

Type locality: Banhado do Timba, Corredor das Tropas, Pelotas district, Rio Grande do Sul province, (southeastern) Brasil.

 


Austrolebias juanlangi  (Costa, Cheffe, Salvia & Litz, 2006)

The South American annual Killifish Genus Austrolebias (Teleostei: Cyprinodontiformes: Rivulidae): phylogenetic Relationships, descriptive Morphology and Taxonomic Revision. Zootaxa, (1213): 87, fig. 34.)

South America: Dos Patos lagoon system and Uruguay River basin.

Austrolebias juanlangi "Parque-Rivera"


Austrolebias litzi W. J. E. M. (Costa, 2006)

Type locality: about 2,5 km of arroio Arenal, about 12 km from Santa Maria, road BR-392, upper rio Jacui drainage, laguna dos Patos system, Rio Grande do Sul, Southern Brazil.

 

Austrolebias luteoflammulatus (Vaz Ferreira, Sierra  & Scaglia , 1964)

Tres Especies nuevas del Genero Cynolebias Steindachner, 1876 (Teleostomi, Cyprinodontidae). Com. Zool. Mus. Hist. Nat. Montevideo, 8 (102): 25, pls. 5-6.

Type locality: near Arroyo Valizas, departamento Rocha, Uruguay.
 

Austrolebias melanoorus (L. H. Amato, 1986)

Seis Especies nuevas del Genero Cynolebias Stdr, 1876, de Uruguay y Paraguay (Cyprinodontiformes, Rivulidae). Com. Zool. Mus. Hist. Nat. Montevideo, 11 (162): 4, pl. 2 (figs. 3-4).

Type locality: Tres Cruces creek, route 5, km 399.5, Tacuarembó, Uruguay.

 

Austrolebias minuano (Costa & Cheffe, 2001

Three new annual Fishes of the genus Austrolebias from the Laguna dos Patos system, southern Brazil, and a redescription of A. adloffi (Ahl) (Cyprinodontiformes: Rivulidae). Comunicações Museu Ciências e Tecnologia, PUCRS, sér. Zool., Porto Alegre, 14 (2), December: 185, figs. 4-5.

Type locality: 4.5 km north of Quinta, Rio Grande do Sul, (southeastern) Brasil.

Austrolebias monstrosus (Huber, 1995)

Nouvelles Collections de Cyprinodontes paraguayens, avec Description de 4 Espèces Rivulines inédites et Redécouverte d'une Espèce à la Localité typique jusqu'alors indéterminée. Assoc. Killiphile Francophone de Belgique, Killi Contact, Aug. 23 (2): 9, fig. 4.

Type locality: near La Serena, Boqueron Department, Paraguay.

 

Austrolebias nachtigalli (Costa & Cheffe, 2006)

The South American annual Killifish Genus Austrolebias (Teleostei: Cyprinodontiformes: Rivulidae): phylogenetic Relationships, descriptive Morphology and Taxonomic Revision. Zootaxa, (1213): 81, fig. 32.

Type locality: Brazil, Rio Grande do Sul: Arroio Grande, road BR-116


Austrolebias nigripinnis (Regan, 1912)

A Revision of the Poeciliid Fishes of the Genera Rivulus, Pterolebias, and Cynolebias. Ann. & Mag. Nat. Hist., 8 (10): 508.

Type locality: Río de la Plata, Argentina.

Austrolebias nigripinnis

Austrolebias nigripinnis "Ceibas MSL 1991/2"

Austrolebias nigripinnis "La Peregrina"

Austrolebias nigripinnis "Rosario del Tala"


Austrolebias nigrofasciatus (Costa & Cheffe, 2001)

Three new annual Fishes of the genus Austrolebias from the Laguna dos Patos system, southern Brazil, and a redescription of A. adloffi (Ahl) (Cyprinodontiformes: Rivulidae). Comunicações Museu Ciências e Tecnologia, PUCRS, sér. Zool., Porto Alegre, 14 (2), December: 187, figs. 6-7.

Type locality: Ponta da Barra, Laranjal beach, Pelotas, Rio Grande do Sul, (southeastern) Brasil.

 

Austrolebias nioni (Berkenkamp, Reichert & Prieto, 1997)

Cynolebias nioni spec. nov. (Cyprinodontiformes, Rivulidae), ein neuer Fächerfisch aus dem Gebiet Tacuarembo, in Nordwesten Uruguay. Wissenschaft, Aquaristik Aktuell, 3: 30, fig.

Type locality: PK 331 (331st kilometer marker), road 26, Tacuarembó, northeastern Uruguay.

 

Austrolebias nonoiuliensis (Taberner, Fernández-Santos & Castelli, 1974)

Datos para conocimento de Cynolebias nonoiuliensis sp. nov. (Cyprinodontidae). Physis, b33 (87): 187, fig.

Type locality: Nueve de Julio, Province Buenos Aires, Argentina.

 

Austrolebias paranaensis (Costa, 2006)

The South American annual Killifish Genus Austrolebias (Teleostei: Cyprinodontiformes: Rivulidae): phylogenetic Relationships, descriptive Morphology and Taxonomic Revision. Zootaxa, (1213): 81, fig. 32.

Type locality: 2 km east of Ayolas, Misiones, Paraguay. 


Austrolebias patriciae (Huber, 1995)

Nouvelles Collections de Cyprinodontes paraguayens, avec Description de 4 Espèces Rivulines inédites et Redécouverte d'une Espèce à la Localité typique jusqu'alors indéterminée. Assoc. Killiphile Francophone de Belgique, Killi Contact, Aug. 23 (2): 6, fig. 2

Type locality: along the road to Clorinda, Presidente Hayes Departamento, ca. 500 m south of río Negro, Paraguay.

Austrolebias patriziae "Cruce Ferrocarril AAK 2012/35"


 

 

Austrolebias paucisquama (Ferrer, Malabarba &  Costa, 2008)

Austrolebias paucisquama (Cyprinodontiformes: Rivulidae), a new species of annual killifish from Southern Brazil. Neotrop. Ichthyol. 6(2):175-180.

Distribution:  a temporary pool in the rio Vacacaí drainage, rio Jacuí tributary, laguna dos Patos drainage in Brazil.

 

Austrolebias periodicus (W. J. E. M. Costa, 1999)

Cynolebias periodicus, a new annual Fish from the Rio Ibicui drainage, southern Brazil (Cyprinodontiformes: Rivulidae). Ichthyol. ExpIor. Freshwaters, 10 (4): 299, figs. 1-2.

Type locality: 4 km west of Dom Pedrito on road BR-293, Rio Grande do Sul state, Brasil.

 

Austrolebias prognathus (Amato, 1986)

Seis Especies nuevas del Genero Cynolebias Stdr, 1876, de Uruguay y Paraguay (Cyprinodontiformes, Rivulidae). Com. Zool. Mus. Hist. Nat. Montevideo, 11 (162): 7, pl. 4 (fig. 7).

Type locality: Maravillas, 13 km from route 9, La Coronilla, departamento Rocha, Uruguay.

 

Austrolebias quirogai (Loureiro, Duarte & Zarucki, 2011)

A new species of Austrolebias Costa (Cyprinodontiformes: Rivulidae) from northeastern Uruguay, with comments on distribution patterns. Neotrop. Ichthyol. 9(2):335-342. 

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200010

Distribution: Temporary ponds from the middle to the upper and eastern río Negro tributaries (río Uruguay basin), and río Yaguarón (Laguna Merín basin) in Uruguay.

 

Austrolebias reicherti (Loureiro & G. B. García, 2004)

Cynolebias reicherti, a new annual fish species (Rivulidae: Cynolebiatinae) from southern Laguna Merín basin. Acta Zoologica Lilloana, 48 (1-2), (2004): 16, fig. 2.

Type locality: 300 m east from Route 18, 1 km north to Vergara City, Departamento de Treinta y Tres, southwestern Laguna Merín basin, Uruguay.

 

Austrolebias robustus (Günther, 1883)

On a new Species of Cynolebias from the Argentina Republic. Ann. & Mag. Nat. Hist., 5 (11): 140.

Type locality: within 10 miles (16 kms) of (Cabo) San Antonio (entrance to Estancia Los Yngleses, subseq.), La Plata, Buenos Aires, Argentina.

 

Austrolebias toba (Calviño, 2006)

Austrolebias toba (Cyprinodontiformes: Rivulidae), una especie nueva de pez annual de la Argentina. Rev. Mus. Argent. Cienc. Nat. 7(2):183-190

Distribution: Lower rio Bermejo basin in Argentina.

 

Austrolebias univentripinnis (Costa & Cheffe, 2005)

Austrolebias univentripinnis sp. nov. (Teleostei: Cyprinodontiformes: Rivulidae): a new annual killifish from the Mirim Lagoon basin, southern Brazil. Zootaxa, 1052: 44, fig. 1.

Type locality: Telho, about 200 m from Jaguarão River bank, tributary to Mirim Lagoon, Patos Lagoon system, Município de Jaguarão, Estado do Rio Grande do Sul (near border with Uruguay), (southeastern) Brasil.

 

 

A new genus of miniature cynolebiasine from the Atlantic Forest and alternative biogeographical explanations for seasonal killifish distribution patterns in South America (Cyprinodontiformes: Rivulidae)  (Costa 2014)

 

Vertebrate zoology 64 (1): 23–33 / 16.05.2014

 

Abstract The analysis of 78 morphological characters for 16 species representing all the lineages of the tribe Cynopoecilini and three out-groups, indicates that the incertae sedis miniature species ‘Leptolebias’ leitaoi Cruz & Peixoto is the sister group of a clade comprising the genera Leptolebias, Campellolebias, and Cynopoecilus, consequently recognised as the only member of a new genus. Mucurilebias gen. nov. is diagnosed by seven autapomorphies: eye occupying great part of head side, low number of caudal-fin rays (21), distal portion of epural much broader than distal portion of parhypural, an oblique red bar through opercle in both sexes, isthmus bright red in males, a white stripe on the distal margin of the dorsal fin in males, and a red stripe on the distal margin of the anal fin in males. Mucurilebias leitaoi is an endangered seasonal species endemic to the Mucuri river basin. The biogeographical analysis of genera of the subfamily Cynolebiasinae using a dispersal-vicariance, event-based parsimony approach indicates that distribution of South American killifishes may be broadly shaped by dispersal events. The analysis supports south-eastern Brazilian coastal plains as the centre of dispersal for cynolebiasine killifishes. Alternative biogeographical explanations are compared and possible dispersal routes and means of dispersal are discussed.