Trigonectes   (Myers, 1925)

 

Results of some recent Studies on American Killifishes. The Fish Culturist, 4 (8): 371.

 

Type-species: by monotypy as Trigonectes strigabundus Myers, 1925 (although several taxa are quoted to be potentially included).

 

Type locality: Porto Nacional, Donna Francisquina lake into Ribeirao, rio Tocantins, Goiaz state (today Tocantins), (northeastern) Brasil.

 

 

 

Trigonectes aplocheiloides

Trigonectes aplocheiloides 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): 17, fig. 8.

Type locality: 74 km from Mariscal Estigarribia towards Americo Picco, Chaco state, Paraguay.

Trigonectes balzanii (Perugia, 1891)

Appunti sopra alcuni Pesci Sud-Americani. Annali Mus. Civ. Storia Nat., Genova, 2 (10): 653.

Type locality: rio Paraguay at Villa Maria (today Caceres, Lagoa da Imbauva), Mato Grosso, Brasil.

 

Trigonectes macrophthalmus W. J. E. M. Costa, 1990

Systematics and Distribution of the neotropical annual Fish Genus Trigonectes (Cyprinodontiformes, Rivulidae), with Description of two new Species. Ichthyol. ExpIor. Freshwaters, 1 (2): 141, fig. 11.

Type locality: Forte Príncipe da Beira, rio Guaporé basin, Rondônia state, Brasil.

 

Trigonectes rogoaguae (N. E. Pearson & G. S. Myers, 1924)

The Fishes of the Eastern Slope of the Andes. I. The Fishes of the Rio Beni Basin, Bolivia, collected by the Mulford Expedition. Indiana Univ. Studies, 11 (64): 51.

Type locality: lago Rogoagua, Bolivia.

Trigonectes rubromarginatus W. J. E. M. Costa, 1990

Systematics and Distribution of the neotropical annual Fish Genus Trigonectes (Cyprinodontiformes, Rivulidae), with Description of two new Species. Ichthyol. ExpIor. Freshwaters, 1 (2): 145, figs. 13-14.

Type locality: Aruana, Goiás state, (western) Brasil.

 

Trigonectes strigabundus G. S. Myers, 1925

Results of some recent Studies on American Killifishes. The Fish Culturist, 4 (8): 371.

Type locality: Porto Nacional, Donna Francisquina lake into Ribeirao, rio Tocantins, Goiaz state (today Tocantins), (northeastern) Brasil.

Trigonectes sp aff aplocheiloides "Río Pilcomayo BPB 2015/06"

Phylogeny and evolutionary radiation in seasonal rachovine killifishes: biogeographical

and taxonomical implications               (Costa 2014)

 

Vertebrate zoology 64 (2): 177–192 7 25.7.2014

 

 

Abstract A phylogenetic analysis combining available mitochondrial DNA sequences (total of 3,339 bp) and 161 morphological characters for 22 species of rachovine genera (Aphyolebias, Austrofundulus, Gnatholebias, Llanolebias, Micromoema, Moema, Neofundulus, Pterolebias, Rachovia, Renova, Terranatos, and Trigonectes), and 16 outgroups, supports monophyly of the group containing genera endemic to the Orinoco river basin and adjacent coastal drainages. Results of the present analysis are compared to previous studies. The tree topology indicates that the genera Moema and Rachovia as presently delimited are paraphyletic; consequently, Aphyolebias and Austrofundulus are respectively placed in the synonymy of Moema and Rachovia. This study also indicates that rachovines were in the past geographically restricted to the Amazonas-Paraguay area where diversification in niche exploitation was constrained by competition with sympatric members of older seasonal fish lineages. Rachovines later reached the Orinoco basin and adjacent coastal drainages by dispersal through the Paleo-Amazonas river basin, when major evolutionary radiation taken place.