A Review of the Doradidae, a Family of South American Nematognathi, or Catfishes

Eigenmann, Carl H.

doi:10.2307/1005464

Cited by 37 publications

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“…Two major changes in the classification of Doradidae were made based on the present hypothesis of relationships among species of Doradinae: description of Tenellus as a new genus, and inclusion of the species previously placed in Opsodoras Eigenmann, 1925 within an expanded Hemidoras Bleeker, 1858. Hemidoras was defined by Eigenmann (1925), and subsequently followed by other authors, as comprising two species, H. stenopeltis and H. morrisi, both sharing dermal scutes between dorsal and adipose fins (#34). However, other characters analyzed herein indicate that Hemidoras morrisi is closely related to Opsodoras morei (now Hemidoras morei), a hypothesis corroborated by the similarity in the overall morphology of both species.…”

Section: Auchenipteridae Bleeker 1862mentioning

confidence: 99%

“…In one of his last papers, Eigenmann (1925) presented an exhaustive taxonomic revision of the Doradidae, diagnosing the family and its taxa based on detailed morphological characters. He allocated all known valid species (68 total) into 26 genera.…”

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“…He allocated all known valid species (68 total) into 26 genera. Following previous authors, Eigenmann (1925) considered the family to be divided into species with a depressed head, wide pectoral girdle, premaxilla with several rows of teeth and simple barbels, vs. species with a compressed head and pectoral girdle, snout sometimes elongate, premaxilla reduced in size, few or no teeth, and barbels usually branched. More than 40 years later, Fernández-Yépez (1968) published a partial revision focused on Venezuelan doradids.…”

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confidence: 99%

“…The doradid genus Hemidoras was erected by Eigenmann (1925) to comprise these two species on the basis of the presence of dermal scutes between the dorsal and adipose fins, and also between the anal opening and anal fin (Eigenmann, 1925: 346;Higuchi, 1992: #A85). A somewhat similar condition is present in Lithodoras dorsalis.…”

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confidence: 99%

“…The lateral-line tubules are developed as a longitudinal row of midlateral bony scutes in all species of Doradidae (Eigenmann, 1925;Ferraris, 1988: #I15;Higuchi, 1992: #87;Royero, 1999: #103, #105;Akama, 2004: #99). This is the most conspicuous feature shared among doradids and was recognized by the earliest studies about these fishes (e.g., Linnaeus, 1766).…”

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Phylogenetic relationships of the South American Doradoidea (Ostariophysi: Siluriformes)

Birindelli¹

2014

Neotrop. ichthyol.

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A phylogenetic analysis based on 311 morphological characters is presented for most species of the Doradidae, all genera of the Auchenipteridae, and representatives of 16 other catfish families. The hypothesis that was derived from the six most parsimonious trees support the monophyly of the South American Doradoidea (Doradidae plus Auchenipteridae), as well as the monophyly of the clade Doradoidea plus the African Mochokidae. In addition, the clade with Sisoroidea plus Aspredinidae was considered sister to Doradoidea plus Mochokidae. Within the Auchenipteridae, the results support the monophyly of the Centromochlinae and Auchenipterinae. The latter is composed of Tocantinsia, and four monophyletic units, two small with Asterophysus and Liosomadoras, and Pseudotatia and Pseudauchenipterus, respectively, and two large ones with the remaining genera. Within the Doradidae, parsimony analysis recovered Wertheimeria as sister to Kalyptodoras, composing a clade sister to all remaining doradids, which include Franciscodoras and two monophyletic groups: Astrodoradinae (plus Acanthodoras and Agamyxis) and Doradinae (new arrangement). Wertheimerinae, new subfamily, is described for Kalyptodoras and Wertheimeria. Doradinae is corroborated as monophyletic and composed of four groups, one including Centrochir and Platydoras, the other with the large-size species of doradids (except Oxydoras), another with Orinocodoras, Rhinodoras, and Rhynchodoras, and another with Oxydoras plus all the fimbriate-barbel doradids. Based on the results, the species of Opsodoras are included in Hemidoras; and Tenellus, new genus, is described to include Nemadoras trimaculatus, N. leporhinus and Nemadoras ternetzi. Due to conflicting hypotheses of the phylogenetic position of Acanthodoras, Agamyxis, and Franciscodoras, these are considered as incertae sedis in Doradidae. All suprageneric taxa of the Doradoidea are diagnosed based on synapomorphic morphological characteristics.Uma análise filogenética com base em 311 caracteres morfológicos é apresentada para a maioria das espécies de Doradidae, todos os gêneros de Auchenipteridae e representantes de outras 16 famílias de Siluriformes. A hipótese de consenso entre as seis árvores mais parcimoniosas corrobora o monofiletismo do grupo Sul-americano Doradoidea (Doradidae mais Auchenipteridae), bem como o de Doradoidea mais a família Africana Mochokidae. O clado de Sisoroidea mais Aspredinidae é considerado como grupo-irmão de Doradoidea mais Mochokidae. Dentre os Auchenipteridae, os resultados corroboraram o monofiletismo de Centromochlinae e Auchenipterinae. Esta última inclui Tocantinsia e outros quarto grupos monofiléticos, um com Asterophysus e Liosomadoras, um com Pseudotatia e Pseudauchenipterus, e outros dois maiores com os demais gêneros da subfamília. Dentre os Doradidae, a análise de parcimônia recuperou Wertheimeria como grupo-irmão de Kalyptodoras, formando um clado irmão de todos os demais doradídeos, que incluem Franciscodoras e dois grupos: Astrodoradinae (mais Acanthodoras e Agamyxis...

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Section: Auchenipteridae Bleeker 1862mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Phylogenetic relationships of the South American Doradoidea (Ostariophysi: Siluriformes)

Birindelli¹

2014

Neotrop. ichthyol.

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Comparative morphology of the gas bladder in driftwood catfishes (Siluriformes: Auchenipteridae)

Birindelli

Akama

Britski

2012

Journal of Morphology

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The gross morphology of the gas bladder is described and illustrated for representatives of most species and all valid genera of the Auchenipteridae (Siluriformes). Although, a simple cordiform gas bladder is present in some species of the family, others are characterized by their distinctive gas-bladder shape and diverticula disposition. An acute posterior end of the gas bladder characterizes Centromochlus heckelii and C. macracanthus, and is variably present in specimens of Auchenipterus. Tocantinsia piresi and Asterophysus batrachus have distinctive gas bladders differing in number of diverticula (two or many). The two species of Trachycorystes are diagnosed based on their gas bladder morphology: T. menezesi has a simple cordiform bladder, whereas T. trachycorystes has a pair of lateral diverticulum and, usually, a well-developed terminal diverticulum. Species of Auchenipterichthys are characterized by having a secondary bladder with simple chamber. Short or elongate and divergent terminal diverticula are exclusive to most cis-andine species of Trachelyopterus. Tetranematichthys and trans-andine species of Trachelyopterus share a well-developed secondary chamber or terminal diverticula ventrally or dorsally connected to the posterior chambers. The small-sized species of Ageneiosus have well-developed gas bladders with a pair of posterior diverticula, whereas large-sized species have a reduced gas bladder with tunica externa varying from non-, partially, or completely ossified. Eight phylogenetic characters are proposed based on the morphology of the gas bladder and associated structures in species of Auchenipteridae, and the evolution of those characters in the family discussed.

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Allometric parameters of Pterodoras granulosus (Valenciennes 1833) and its application to fossil assemblages

Loponte¹,

Acosta²,

Musali³

2010

Intl J of Osteoarchaeology

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By means of the analysis of 28 modern individuals of Pterodoras granulosus, a silurid of great importance in the archaeological assemblages of the Amazonas and Paraná basins, allometric equations based on the size of the spines have been derived, allowing the reconstruction of size profile and weight of the individuals recovered in fossil assemblages. These equations have been obtained from four different measures, three of them related to different sections of the spine articulation with the cleithrum, an area that usually has an excellent preservation in the archaeological and palaeontological records. This study allows observation of remarkable individual variability of the captured specimens regarding its total weight, mainly due to the weight variability of viscera, and also probably with other metabolic situations, episodic intakes and/or reproductive aspects, among others. Hence, allometric equations determine more accurately length than weight, resulting in proxy data for the reconstruction of different size profiles of archaeological assemblages.

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A Review of the Doradidae, a Family of South American Nematognathi, or Catfishes

Cited by 37 publications

References 0 publications

Phylogenetic relationships of the South American Doradoidea (Ostariophysi: Siluriformes)

Phylogenetic relationships of the South American Doradoidea (Ostariophysi: Siluriformes)

Comparative morphology of the gas bladder in driftwood catfishes (Siluriformes: Auchenipteridae)

Allometric parameters of Pterodoras granulosus (Valenciennes 1833) and its application to fossil assemblages

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