The Victoria Falls, a species boundary for the Zambezi Parrotfish, Cyphomyrus discorhynchus (Peters, 1852), and the resurrection of Cyphomyrus cubangoensis (Pellegrin, 1936) (Mormyridae: Teleostei)

The Victoria Falls, a species boundary for the Zambezi Parrotfish, Cyphomyrus discorhynchus (Peters, 1852), and the resurrection of Cyphomyrus cubangoensis (Pellegrin, 1936) (Mormyridae: Teleostei)
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维多利亚瀑布、赞比西鹦嘴鱼、Cyphomyrus discorhynchus (Peters, 1852) 和 Cyphomyrus cubangoensis (Pellegrin, 1936) 的复活(Mormyridae:Teleostei)

DOI:
10.1080/00222933.2011.597945
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发表时间:
1936
影响因子:
0.8
通讯作者:
Van der Bank
Van der Bank
中科院分区:
生物学4区
文献类型:
--
作者:
Kramer;Van der Bank

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相似文献

Cyphomyrus discorhynchus 出现在赞比西河以及宽多河和奥卡万戈河的相连系统中。我们从维多利亚瀑布上方和下方收集了样本并记录了电器官放电。我们发现从赞比西河三角洲到维多利亚瀑布的标本之间存在明显的解剖学分化,这代表了亚种的地理斜线,反映了该河段(赞比西河下游和中游)的长度(1400公里)和高度的生态多样性。我们确认,瀑布上方的种群(即赞比西河上游、宽多和奥卡万戈)与下方的种群有所不同,它们的背鳍条较少(中位数为 30-31 条,而不是 33-34 条)。电子器官放电脉冲的波形有四个阶段,并显示出地理差异,但对于来自瀑布下方的样本来说,波形更短暂。我们为赞比西河上游/宽多/奥卡万戈系统复活了Cyphomyrus cubangoensis(Pellegrin,)。
Cyphomyrus discorhynchusoccurs 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 resurrectCyphomyrus cubangoensis(Pellegrin, ) for the Upper Zambezi/Kwando/Okavango system.
DOI: 10.1111/j.1096-3642.1898.tb03181.x
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影响因子: --
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DOI: --
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