The Auchenipteridae: Putative monophyly and systematics, with a classification of the neotropical Doradoid catfishes (Ostariophysi: Siluriformes).
Item
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Title
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The Auchenipteridae: Putative monophyly and systematics, with a classification of the neotropical Doradoid catfishes (Ostariophysi: Siluriformes).
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Identifier
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AAI8820861
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identifier
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8820861
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Creator
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Ferraris, Carl J., Jr.
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Contributor
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Adviser: Gareth Nelson
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Date
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1988
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Language
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English
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Publisher
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City University of New York.
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Subject
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Biology, Zoology
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Abstract
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The neotropical catfish family Auchenipteridae is redefined as a strictly monphyletic group based on a series of characters of the skeletal system and soft anatomy. The Auchenipteridae includes all species previously placed in the Ageneiosidae. The genus Werthemeria is removed to the Doradidae, and the family Centromochlidae is reinstated to include approximately 30 species previously placed in the Auchenipteridae.;The Auchenipteridae comprise the only catfish group known to practice internal fertilization. The family is hypothesized to be the sister group of the Centromochlidae, with the Doradidae the nearest relative of that combined lineage.;Within the Auchenipteridae, two subfamilies are recognized: the Auchenipterinae and the Trachycorystinae. Three poorly known, monotypic, genera (Asterophysus, Pseudotatia, and Tocantinsia) are placed within the family insertae sedis. The genera Trachycorystes, Trachelopterichthys, and Liosomadoras comprise the Trachycorystinae. The Auchenipterinae consist of the genera Pseudauchenipterus and Auchenipterichthys and the tribe Auchenipterini.;Within the Auchenipterini, Trachelyichthys is the sister group of a clade composed of the following three groups of genera: (1) Ageneiosus and Tetranematichthys, (2) Trachelyopterus, and (3) Entomacorus, Epapterus, and Auchenipterus.;The Centromochlidae include Centromochlus, Glanidium, Gelanoglanis, and Tatia, and two undescribed genera.;Sexually dimorphic characters of, primarily, the unpaired fins, maxillary barbel, and neurocranium provided much of the information used in this study. Adult male auchenipterids appear to acquire these characters each reproductive season and they have yet to be seen in several rare genera. Better resolution of the interrelationships of these fishes awaits the acquisition in additional material.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
