Atlantirivulus (Costa 2008)

 

Untergattung Costa 2008 / Gattung Costa 2011 /  Untergattung Huber 2012 / Gattung Costa 2014

 

Type species: Atlantirivulus santensis

 

Verbreitung: Küstenfluss – Drainagen des östlichen Brasilien zwischen Una  und Lagoa do Peixe

 

Phylogenetic position and taxonomic status of Anablepsoides, Atlantirivulus, Cynodonichthys, Laimosemion and Melanorivulus (Cyprinodontiformes: Rivulidae)

Wilson J. E. M. Costa 2011

A maximum parsimony analysis of a combined set of mitochondrial and morphological data available in the literature for 33 rivuline taxa and three outgroups confirms Rivulus as a paraphyletic assemblage. In order to adjust a generic classification to our present phylogenetic knowledge on rivuline relationships, the following taxonomic changes are proposed: Rivulus, restricted to two species endemic to Cuba, is hypothesized to be the most basal rivuline lineage, distinguished from all other non-annual rivulines by having all hypurals fused into a single plate, neural prezygapophysis of caudal vertebrae rudimentary, fourth ceratobranchial teeth absent, about 50 % of the anterior portion of the caudal fin covered by scales, four neuromasts on the anterior supraorbital series, and a black round spot with white margin on the dorsoposterior portion of the caudal peduncle in females; Anablepsoides, Atlantirivulus, Laimosemion, Melanorivulus and Cynodonichthys, previously classified as subgenera of Rivulus, are considered as valid genera; Laimosemion, including 24 species from northern South America, constitutes the sister group to a clade comprising Melanorivulus, Cynodonichthys, Anablepsoides, Atlantirivulus, and all annual rivuline genera, which is supported by a well-developed dorsal process of the urohyal and an expanded lateral articular facet of the first hypobranchial; Melanorivulus, comprising 34 species from central and northeastern South America, Cynodonichthys with 27 species from Central America and Trans-Andean South America, Anablepsoides with 42 species from northern and northeastern South America and Smaller Antilles, and Atlantirivulus, with 11 species endemic to the eastern Brazilian coastal plains are diagnosed by combinations of morphological characters, including osteology, cephalic laterosensory system and colour patterns.

Huber, J.H., Reappraisal of the Phylogeny of Rivulus and its Allied focused on External Characters. Killi‐ Data Series 2012, 9‐25, 3 figs., 2 tabs.

Abstract: In the present study all known to date phylogenetic lineages encompassing the genus Rivulus in the large sense and its relatives, 44 in total, are benchmarked against a very long list of external characters involving global and detailed morphology of each, plus some characters related to biology, behavior and ecology, plus a few characters concerning the vertebrae counts and their structure. The parsimony analysis for these 144 characters results in 3 trees only, very much in line with the global stability of major lineages and the consensus tree produces bootstrap values that are much higher than previously released studies with morphological and osteological characters. In the resulting tree, outside Kryptolebias already separated in 2004, the genus Rivulus in the large sense is shown as a monophyletic assemblage like in the molecular study by Murphy, Thomerson & Collier (1999), with annual and non‐ annual species separated, but unlike Costa (2011) who used both morpho‐osteological and molecular combined characters. Apart from the coherence of the genus Rivulus in a large sense, the analysis newly suggests the primitive position of Millerichthys, the monophyly of major annual subclades, and the phylogenetic relationship of a clade of 3 subgenera of Rivulus, namely Prorivulus, Atlantirivulus, Melanorivulus in line with a previous palaeo‐bridge hypothesis and the minor osteological diagnostic characters that were forwarded for these 3 taxa should be deepened and re‐evaluated. Two other subunits of Rivulus, namely Anablepsoides and Oditichthys, are atypically placed in the tree, but their 2 type species were not studied by Costa (2011) and that too would need re‐evaluation. Finally several phylogenetic lineages belonging to the huge ‐and very poorly known‐ Amazon basin ends up in an unstable position and more material and characters are thought necessary for further research of this very difficult group of fish.

 

 

Atlantirivulus - Arten  (15 Arten)

 

Atlantirivulus depressus W. J. E. M. Costa, 1991

Description of two new Species of the Genus Rivulus (Cyprinodontiformes: Rivulidae) from eastern South American coastal Plains. Rev. Suisse Zool., 98 (3): 585, fig. 2.

Type locality: near Porto Seguro, rio João de Tiba basin, Bahia state, eastern Brasil.

 

Atlantirivulus guanabarensis W. J. E. M. Costa, 2014 

Four new species of the genus Atlantirivulus (Cyprinodontiformes: Rivulidae) from the Brazilian Atlantic Forest

Typenfundort: Brasilien: Estado do Rio de Janeiro: Município de Magé: Wasserlauf in dichtem Wald, Roncador River Becken, Citrolândia, Reserva Particular do Patrimônio Natural Campo Escoteiro Geraldo Hugo Nunes, 22° 35′ 31″ S; 43°01′ 28″ W.

Abstract Material obtained from recent collections was used to revise taxonomy of the genus Atlantirivulus in the coastal basins of south – eastern Brazil, making possible to recognise four new species: Atlantirivulus maricensis, new species, from the rivers drainages connected to the Maricá lagoon system; Atlantirivulus guanabarensis, new species, from river drainages flowing into the Guanabara bay; Atlantirivulus paranaguensis, new species, from the river basins of the plain area adjacent to the Paranaguá bay; and Atlantirivulus ribeirensis, new species, from the Ribeira de Iguape river basin. All the new species herein described are members of the A. santensis species group, diagnosed by the lateral line being divided in two sections. Atlantirivulus maricensis is considered to be closely related to A. janeiroensis, A. jurubatibensis and A. nudiventris by all sharing a horizontally elongated female caudal spot, whereas A. guanabarensis seems to be more closely related to A. lazzarotoi and A. simplicis, by all having a high number of neuromasts in the section of infraorbital series around orbit, and A. paranaguensis seems to be more closely related to A. santensis by both having the anal and caudal fin margin highly black pigmented in males; relationships of A. ribeirensis among congeners is unclear, but the presence of intense yellow pigmentation on venter suggests close relationships with A. santensis. Characters used to diagnose new species include colour patterns, number of scales in the longitudinal series and vertebrae, and shape of caudal fin.

 

Atlantirivulus haraldsiolii Berkenkamp, 1984

Eine neue Bachlingsart aus dem Staat Sta. Catarina/ Brasilien, Rivulus haraldsiolii spec.nov. (Pisces-Rivulidae). Amazoniana, 8 (4): 430, figs. 1-3.

Type locality: lower rio Itapocú, Santa Catarina state, southeastern Brasil.

 

Atlantirivulus janeiroensis W. J. E. M. Costa, 1991

Description of two new Species of the Genus Rivulus (Cyprinodontiformes: Rivulidae) from eastern South American coastal Plains. Rev. Suisse Zool., 98 (3): 583, fig. 1.

Type locality: near Silva Jardim, Rio Sao Joao basin, Rio de Janeiro state, Brasil.

Atlantirivulus jurubatibensis W. J. E. M. Costa, 2008

Rivulus jurubatibensis, a new aplocheiloid killifish from the southeastern Brazilian coastal plains (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 19(2):135-140.

Typenfundort: Braslien: Estado do Rio de Janeiro: Municipio de Quissamã. Sumpf beim Lagoa do Pires, Nationalpark von Jurubatiba. 22°10'50"S;  41°23'41"W.

 

Atlantirivulus lazzarotoi W. J. E. M. Costa, 2007

Rivulus lazzarotoi n. sp. (Teleostei: Cyprinodontiformes: Rivulidae), a new killifish from the Jurumirim River basin, southeastern Brazil. Aqua J. Ichthyol. Aquat. Biol. 12(3):123-128.

Vorkommen: Estado do Rio de Janeiro: Angra dos Reis.

 

Atlantirivulus luelingi Seegers, 1984

Zur Revision der Rivulus-Arten Südost Brasiliens mit einer Neubeschreibung von Rivulus luelingi und Riv. caudomarginatus n.sp. Bonn. zool. Beitr., 28: 273, fig. 1.

Type locality: rio Pirai near Joinville, southeastern Brasil.

 

Atlantirivulus maricensis W. J. E. M. Costa, 2014 

Four new species of the genus Atlantirivulus (Cyprinodontiformes: Rivulidae) from the Brazilian Atlantic Forest

Typenfundort: Brasilien: Estado do Rio de Janeiro: Município de Maricá: Wasserlauf kreuzend die Straße nach Ponta Negra, nahe dem Dorf Bananal, Carangueijo River Drainage, Maricá Lagunen System, 22° 54′ 51″ S; 42° 43′ 17″ W.

Abstract Material obtained from recent collections was used to revise taxonomy of the genus Atlantirivulus in the coastal basins of south – eastern Brazil, making possible to recognise four new species: Atlantirivulus maricensis, new species, from the rivers drainages connected to the Maricá lagoon system; Atlantirivulus guanabarensis, new species, from river drainages flowing into the Guanabara bay; Atlantirivulus paranaguensis, new species, from the river basins of the plain area adjacent to the Paranaguá bay; and Atlantirivulus ribeirensis, new species, from the Ribeira de Iguape river basin. All the new species herein described are members of the A. santensis species group, diagnosed by the lateral line being divided in two sections. Atlantirivulus maricensis is considered to be closely related to A. janeiroensis, A. jurubatibensis and A. nudiventris by all sharing a horizontally elongated female caudal spot, whereas A. guanabarensis seems to be more closely related to A. lazzarotoi and A. simplicis, by all having a high number of neuromasts in the section of infraorbital series around orbit, and A. paranaguensis seems to be more closely related to A. santensis by both having the anal and caudal fin margin highly black pigmented in males; relationships of A. ribeirensis among congeners is unclear, but the presence of intense yellow pigmentation on venter suggests close relationships with A. santensis. Characters used to diagnose new species include colour patterns, number of scales in the longitudinal series and vertebrae, and shape of caudal fin.

 

Atlantirivulus nudiventris W. J. E. M. Costa & G. C. Brasil, 1991

Description of a New Species of Rivulus (Cyprinodontiformes: Rivulidae) from the coastal Plains of eastern Brazil. Ichthyol. ExpIor. Freshwaters, 1 (4) (1990): 380, figs. 3-4.

Type locality: right bank of Rio Itapemirim, ca. 2 km from the sea, county of Itapemirim, Espírito Santo, Brasil.

 

Atlantirivulus paranaguensis W. J. E. M. Costa, 2014 

Four new species of the genus Atlantirivulus (Cyprinodontiformes: Rivulidae) from the Brazilian Atlantic Forest

Abstract Material obtained from recent collections was used to revise taxonomy of the genus Atlantirivulus in the coastal basins of south – eastern Brazil, making possible to recognise four new species: Atlantirivulus maricensis, new species, from the rivers drainages connected to the Maricá lagoon system; Atlantirivulus guanabarensis, new species, from river drainages flowing into the Guanabara bay; Atlantirivulus paranaguensis, new species, from the river basins of the plain area adjacent to the Paranaguá bay; and Atlantirivulus ribeirensis, new species, from the Ribeira de Iguape river basin. All the new species herein described are members of the A. santensis species group, diagnosed by the lateral line being divided in two sections. Atlantirivulus maricensis is considered to be closely related to A. janeiroensis, A. jurubatibensis and A. nudiventris by all sharing a horizontally elongated female caudal spot, whereas A. guanabarensis seems to be more closely related to A. lazzarotoi and A. simplicis, by all having a high number of neuromasts in the section of infraorbital series around orbit, and A. paranaguensis seems to be more closely related to A. santensis by both having the anal and caudal fin margin highly black pigmented in males; relationships of A. ribeirensis among congeners is unclear, but the presence of intense yellow pigmentation on venter suggests close relationships with A. santensis. Characters used to diagnose new species include colour patterns, number of scales in the longitudinal series and vertebrae, and shape of caudal fin.

 

Atlantirivulus ribeirensis W. J. E. M. Costa, 2014 

Four new species of the genus Atlantirivulus (Cyprinodontiformes: Rivulidae) from the Brazilian Atlantic Forest

Typenfundort: Brasilien: Estado de São Paulo: Município de Juquiá: Sumpf an der Straße etwa 5 km W von Juquiá,

24° 20′ 00″ S; 47° 38′ 51″ W;

Abstract Material obtained from recent collections was used to revise taxonomy of the genus Atlantirivulus in the coastal basins of south – eastern Brazil, making possible to recognise four new species: Atlantirivulus maricensis, new species, from the rivers drainages connected to the Maricá lagoon system; Atlantirivulus guanabarensis, new species, from river drainages flowing into the Guanabara bay; Atlantirivulus paranaguensis, new species, from the river basins of the plain area adjacent to the Paranaguá bay; and Atlantirivulus ribeirensis, new species, from the Ribeira de Iguape river basin. All the new species herein described are members of the A. santensis species group, diagnosed by the lateral line being divided in two sections. Atlantirivulus maricensis is considered to be closely related to A. janeiroensis, A. jurubatibensis and A. nudiventris by all sharing a horizontally elongated female caudal spot, whereas A. guanabarensis seems to be more closely related to A. lazzarotoi and A. simplicis, by all having a high number of neuromasts in the section of infraorbital series around orbit, and A. paranaguensis seems to be more closely related to A. santensis by both having the anal and caudal fin margin highly black pigmented in males; relationships of A. ribeirensis among congeners is unclear, but the presence of intense yellow pigmentation on venter suggests close relationships with A. santensis. Characters used to diagnose new species include colour patterns, number of scales in the longitudinal series and vertebrae, and shape of caudal fin.

 

Atlantirivulus riograndensis W. J. E. M. Costa & Lanés, 2009

Typenfundort: Pai João Sumpf, Parque Nacional da Lagoa do Peixe.

5 – 10 cm tiefer Tümpel mit durchscheinend orangenem Wasser in offenem Gelände am Waldrand.

Verbreitung: Porto Alegre, Patos Lagune und anschließende Küstenebene.

 

Atlantirivulus santensis Köhler, 1906

Diesjährige Neuheiten in Wort und Bild. II. Neuimportierte bzw. erstmalig nachgezüchtete Zahnkarpfen (Poeciliidae). Neu importierte Rivulus-Arten. Blätt. Aquar. -u. Terrarienk., 17 (41): 408, fig.

Type locality: west of Santos, near Pedro Taques, southeastern Brasil.

 

Atlantirivulus simplicis W. J. E. M. Costa, 2004

Rivulus simplicis n. sp. (Cyprinodontiformes: Rivulidae): a new Killifish from the coastal Plains of south-eastern Brazil. Aqua, Journal of Ichthyology and Aquatic Biology, 8 (3): 104, figs. 1-2.

Type locality: Parati, near Jabaquara beach, Rio de Janeiro state, (southeastern) Brasil, altitude 23 m.

 

Atlantirivulus unaensis W. J. E. M. Costa & De Luca, 2009

Rivulus unaensis, a new aplocheiloid killifish of the subgenus Atlantirivulus from eastern Brazil (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 20(1):71-74. 

Typenfundort: Estado de Bahia: Municipio de Una: ein Bach im Wald nordwestlich von Una. :15°10`48``S; 39°10`48``W.