01616nas a2200133   4500008004100000245018500041210006900226300001200295490000700307520103900314100002901353700001801382856008201400       1996                        eng d00aPhylogenetic relationships between eight African species of mormyriform fish (Teleostei, Osteichthyes): resolution of a cryptic species, and reinstatement of Cyphomyrus Myers, 19600 aPhylogenetic relationships between eight African species of morm  a275-2900 v243 a<p>Phylogenetic relationships between seven elephantfish species from five genera (Mormyridae) that are endemic to southem Africa, and the Nile knifefish of the sister family, Gymnamhidae, were determined using biochemical genetic data, behaviour (the waveforms of the electric organ discharge), morphology, and habitat and food preferences. The results confirmed the existence of an undescribed species of Hippopotamyrus, and that H.ansorgii and H.discorhynchus are not congeners.These distinctions had been suggested by differences in electric organ discharge wavefonns and are here substantiated by morphological and genetic data. We recommend the reinstatement of Cyphomyrus discorhynchus (Peters, 1852). Genetic distance (D, Nei, 1972) values suggest confamilial genera (D average of 1.09 for all species studied, and 0.715 for southern African species), with the exception of the sympatric and congeneric species: H. ansorgii and H. sp. (D=0.423). Phylogenies based on morphological and electrophoretic data are congruent.</p>
1 avan der Bank, F., Herman1 aKramer, Bernd  uhttps://www.sciencedirect.com/science/article/pii/0305197896000269?via%3Dihub01509nas a2200121   4500008004100000245020200041210006900243490000700312520097300319100001801292700002901310856004801339       2011                        eng d00aThe Victoria Falls, a species boundary for the Zambezi Parrotfish, Cyphomyrus discorhynchus (Peters, 1852), and the resurrection of Cyphomyrus cubangoensis (Pellegrin, 1936) (Mormyridae: Teleostei)0 aVictoria Falls a species boundary for the Zambezi Parrotfish Cyp0 v453 a<p>Cyphomyrus discorhynchus occurs in the Zambezi River and in the linked systems of the Kwando and the Okavango. We collected specimens from both above and below the Victoria Falls and recorded Electric Organ Discharges. We found a marked degree of anatomical differentiation among the specimens from the Zambezi delta to the Victoria Falls that represents a subspecific, geographical cline, reflecting the great length (1400 km) and high ecological diversity of that river section (Lower and Middle Zambezi). We confirm that the populations above the Falls (i.e. Upper Zambezi, Kwando and Okavango) are differentiated from those below, possessing fewer dorsal fin rays (a median of 30-31 rather than 33-34). The waveforms of the electric organ discharge pulses have four phases and show geographic variation but were briefer for specimens from below the Falls. We resurrect Cyphomyrus cubangoensis (Pellegrin, 1936) for the Upper Zambezi/Kwando/Okavango system</p>
1 aKramer, Bernd1 avan der Bank, F., Herman  uhttps://mormyrids.myspecies.info/en/node/22