Phylogeny and taxonomic revision of the endemic Malagasy genus Ptychochromis (Teleostei, Cichlidae), with the description of five new species and a diagnosis for Katria, new genus ; American Museum novitates, no. 3535

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dc.contributor.author Stiassny, Melanie L. J. en_US
dc.contributor.author Sparks, John S. en_US
dc.date.accessioned 2006-09-18T16:17:52Z
dc.date.available 2006-09-18T16:17:52Z
dc.date.issued 2006 en_US
dc.identifier.uri http://hdl.handle.net/2246/5813
dc.description 55 p. : ill. (some col.), map ; 26 cm. en_US
dc.description Includes bibliographical references (p. 53-54). en_US
dc.description.abstract "The Malagasy cichlid genus Ptychochromis is revised and five new species are described, one of which is presumed to be extinct. The three valid nominal species, P. oligacanthus, P. grandidieri, and P. inornatus, are redescribed with diagnoses provided for each. A phylogeny of ptychochromin cichlids, derived from the simultaneous analysis of morphological features and nucleotide characters from a combination of mitochondrial and nuclear genes is presented. Ptychochromis is diagnosed by a suite of derived features of the pharynx, infraorbital series, and palatine morphology. In addition, the sister taxon to Ptychochromis, Ptychochromoides katria, is removed from Ptychochromoides and placed in its own genus, Katria, which is described herein as new. Katria is diagnosed by a unique pigmentation pattern, the absence of paired anterior gas bladder chambers that approach the neurocranium, an elevated vertebral count, and a slender caudal peduncle. An unnamed clade comprising Ptychochromis and Katria is diagnosed by a suite of derived features of the pharynx, sensory canal system, supraneural patterning, and palatine morphology"--P. [1]. en_US
dc.format.extent 4887017 bytes
dc.format.mimetype application/pdf
dc.language eng en_US
dc.language.iso en_US
dc.publisher New York, NY : American Museum of Natural History en_US
dc.relation.ispartofseries American Museum novitates, no. 3535 en_US
dc.subject.lcc QL1 .A436 no.3535, 2006 en_US
dc.subject.lcsh Ptychochromis -- Phylogeny. en_US
dc.subject.lcsh Ptychochromis en_US
dc.subject.lcsh Katria en_US
dc.subject.lcsh Cichlids -- Phylogeny. en_US
dc.subject.lcsh Cichlids -- Madagascar en_US
dc.subject.lcsh Freshwater fishes -- Madagascar en_US
dc.subject.lcsh Fishes -- Madagascar en_US
dc.title Phylogeny and taxonomic revision of the endemic Malagasy genus Ptychochromis (Teleostei, Cichlidae), with the description of five new species and a diagnosis for Katria, new genus ; American Museum novitates, no. 3535 en_US
dc.title.alternative Revision of Ptychochromis en_US
dc.type text en_US

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  • American Museum Novitates
    Novitates (Latin for "new acquaintances"), published continuously and numbered consecutively since 1921, are short papers that contain descriptions of new forms and reports in zoology, paleontology, and geology. New numbers are published at irregular intervals.

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