Kramer, Bernd and Swartz, Ernst R. (2010) A new species of Slender Stonebasher within the Hippopotamyrus ansorgii complex from the Cunene River in southern Africa (Teleostei: Mormyriformes). JOURNAL OF NATURAL HISTORY, 44 (35-36): PII 925225. pp. 2213-2242. ISSN 0022-2933,
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Previous work has revealed that Hippopotamyrus ansorgii (Boulenger, 1905) is a species complex, with specimens from the Upper Zambezi system (Caprivi Strip in Namibia) that are well differentiated from the Angolan type specimens. Here, we sampled the Cunene River, one of several possible type rivers for H. ansorgii, on the border between Namibia and Angola. The specimens are morphologically differentiated from the six other known morphs within the H. ansorgii species complex, including the types and H. szaboi. The electric organ discharge of the Cunene specimens has a different pulse waveform and associated amplitude spectra to that of the three Upper Zambezi system morphs of the species complex. The Cunene specimens are genetically distinct, but relatively closely related to other taxa of the H. ansorgii complex, such as the Upper Zambezi system morphs. We recognize the Lower Cunene morph as the new species, Hippopotamyrus longilateralis sp. nov.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | WEAKLY ELECTRIC FISH; MARCUSENIUS-MACROLEPIDOTUS; POLLIMYRUS-CASTELNAUI; GNATHONEMUS-PETERSII; DRAINAGE EVOLUTION; ORGAN DISCHARGES; P-MARIANNE; MORMYRIDAE; MODEL; FLOCK; Mormyridae; allopatric speciation; electric organ discharge; molecular genetics; vicariance |
| Subjects: | 500 Science > 590 Zoological sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Zoologie > Alumni or Retired > Verhaltensbiologie und Verhaltensphysiologie (Prof. Dr. Bernd Kramer) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 17 Aug 2020 14:47 |
| Last Modified: | 17 Aug 2020 14:47 |
| URI: | https://pred.uni-regensburg.de/id/eprint/25517 |
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