Redescription of Odontostilbe pulchra (Gill, 1858) (Teleostei: Characidae: Cheirodontinae), and description of two new species from the río Orinoco basin

Bührnheim, Cristina Motta; Malabarba, Luiz Roberto

doi:10.1590/s1679-62252007000100001

Cited by 1,097 publications

(8 citation statements)

References 17 publications

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“…In most examined species, the last unbranched and the first branched dorsal-fin rays are the longest rays with the dorsal-fin rays gradually decreasing in length posteriorly (state 0). Malabarba (1998a) noted that the posteriormost unbranched dorsal-fin ray is much longer than the remaining rays and extended as a filament (state 1; Bührnheim & Malabarba, 2007: fig. 23) in adult males of Odontostilbe fugitiva and Holoshesthes (=Odontostilbe) pequira.…”

Section: Epineuralsmentioning

confidence: 99%

Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy

2010

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The family Characidae is the most diverse among Neotropical fishes. Systematics of this family are mainly based on precladistic papers, and only recently a phylogenetic hypothesis for Characidae was proposed by the author. That phylogeny was based on 360 morphological characters studied for 160 species, including representatives of families related to Characidae. This paper is based on that phylogenetic analysis, with the analyzed characters described herein and documented, accompanied by comparisons of their definition and coding in previous papers. Synapomorphies of each node of the proposed phylogeny are listed, comparisons with previous classifications provided, and autapomorphies of the analyzed species listed. Taxonomic implications of the proposed classification and the position of the incertae sedis genera within Characidae are discussed. A discussion of the phylogenetic information of the characters used in the classical systematics of the Characidae is provided.La familia Characidae es la más diversa entre los peces neotropicales. La sistemática de esta familia está basada principalmente en trabajos pre-cladísticos, y sólo recientemente una hipótesis filogenética para Characidae fue propuesta por el autor. Esa filogenia estaba basada en 360 caracteres estudiados en 160 especies, incluyendo representantes de familias relacionadas a Characidae. Este trabajo está basado en ese análisis filogenético, y los caracteres analizados son aquí descriptos y documentados, comparando su definición y codificación con trabajos previos. Las sinapomorfías de cada nodo de la filogenia propuesta son listadas, y se incluyen comparaciones con clasificaciones previas; también se listan las autapomorfías de las especies analizadas. Las implicancias taxonómicas de la clasificación propuesta y la posición de los géneros incertae sedis dentro de Characidae son discutidas. También se presenta una discusión de la información filogenética de los caracteres usados en la sistemática clásica de Characidae.

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Section: Epineuralsmentioning

confidence: 99%

Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy

2010

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“…3); for six species of externally fertilized cheirodontines, Odontostilbe ecuadorensis (Bührnheim & Malabarba, 2006: fig.16), O. fugitiva (Bührnheim & Malabarba, 2006: fig.3), O. parecis (Bührnheim & Malabarba, 2006: fig.16, p.92), O. pulchra (Bührnheim & Malabarba, 2007: fig. 7), O. splendida (Bührnheim & Malabarba, 2007: fig. 20), and O. pao (Bührnheim & Malabarba, 2007: fig.…”

Section: Introductionmentioning

confidence: 99%

Comparative morphology of gill glands in externally fertilizing and inseminating species of cheirodontine fishes, with implications on the phylogeny of the family Characidae (Actinopterygii: Characiformes)

2012

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The structure and form of gill gland among inseminating and externally fertilizing species of the Cheirodontinae are described under light microscopy, scanning electron microscopy, and transmission electron microscopy, and compared to other members of the family Characidae. At least one species from thirteen cheirodontine genera were analyzed, totaling seventeen species. Gill glands were found in all analyzed mature males of Cheirodontinae and were always absent in females, being located on the anteriormost portion of the lower branch of the first gill arch, extending posteriorly through a variable number of gill filaments. Gill glands of all cheirodontines and of all characid species in which this organ has been described possess the same structure, being considered homologous and supporting a single origin of the structure in a common ancestor to Clade A and Clade B characids.A estrutura e forma da glândula branquial de queirodontíneos inseminadores e de fecundação externa são descritas com base em análises de microscopia óptica, microscopia eletrônica de varredura e microscopia eletrônica de transmissão, e comparadas com outros membros da família Characidae. Pelo menos uma espécie de treze gêneros de Cheirodontinae foram analisadas, num total de dezessete espécies. Glândulas branquiais foram encontradas em todos os machos maduros analisados de Cheirodontinae, localizadas na parte mais anterior do ramo inferior do primeiro arco branquial, estendendo-se posteriormente por um número variável de filamentos branquiais, estando sempre ausentes nas fêmeas. As glândulas branquiais de todos os queirodontíneos analisados e de todas as espécies de Characidae em que este órgão foi descrito possuem a mesma estrutura, sendo consideradas homólogas e suportando uma origem única em um ancestral comum aos Clados A e B de Characidae.

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“…Their structure in the examined species is similar to that described for other characids, where a fusion of the anteriormost filaments was observed in previous studies (Gonçalves et al . ; Bührnheim and Malabarba , ; Mirande , ; Azevedo et al . ; Jerep and Malabarba ; Oliveira et al .…”

Section: Resultsmentioning

confidence: 99%

Gill‐derived glands in species of Astyanax (Teleostei: Characidae)

2014

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The presence of a gill‐derived gland is herein reported for the first time in males of species of Astyanax and related genera; they are described through histological cuts and SEM. The gill‐derived glands described for the Characidae, when fully developed, present a similar structure in different species. The main external feature of gill‐derived glands is the fusion of anteriormost gill filaments on the ventral branch of first gill arch. This fusion is caused by squamous stratified epithelial tissue that covers adjacent filaments, forming a series of chambers. In the region where the gill‐derived gland develops, the secondary lamellae of the gill filaments are much reduced or completely atrophied being characterized by the presence of glandular cells forming nests.

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Redescription of Odontostilbe pulchra (Gill, 1858) (Teleostei: Characidae: Cheirodontinae), and description of two new species from the río Orinoco basin

Cited by 1,097 publications

References 17 publications

Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy

Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy

Comparative morphology of gill glands in externally fertilizing and inseminating species of cheirodontine fishes, with implications on the phylogeny of the family Characidae (Actinopterygii: Characiformes)

Gill‐derived glands in species of Astyanax (Teleostei: Characidae)

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