A redescription of the adult male and praniza of Gnathia africana Barnard, 1914 (Crustacea, Isopoda, Gnathiidae) from southern Africa
A redescription of the adult male and praniza of Gnathia africana Barnard, 1914 (Crustacea, Isopoda, Gnathiidae) from southern Africa
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对来自南部非洲的 Gnathia africana Barnard 成年雄性和 praniza 的重新描述，1914 年（甲壳纲，等足纲，Gnathiidae）
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
L. Basson
中科院分区：
文献类型：
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作者：
Nico J. Smit;J. As;L. Basson
对Gnathia africana Barnard，1914年的成年雄性和praniza的重新描述来自于在南非海岸沿着的三个地点收集的材料以及原作者沉积的同型和其他材料。这种重新描述是基于光学和扫描电子显微镜。对世界颚类的了解反映了科学家对这些等足类动物感兴趣的位置，而不是它们的实际分布。近四分之一的已知物种来自澳大利亚（Cohen和Poore 1994）。非洲的代表性很差。仅有的记录是Barnard（1914 a，B，1920，1925）描述的四个种来自南部非洲（Gnathia africana Barnard，1914; Gnathia spongicola Barnard，1920; Gnathia disjuncta Barnard，1920;和Gnathia cryptopais Barnard，1925）和Muller（1989）来自肯尼亚的一个记录（Gnathia wolffi Muller，1989）。虽然Monod（1926年）在他的专著中记录了南部非洲的物种，但他包括了Barnard的原始描述，没有额外的信息。这些著作都没有提供足够的关于南部非洲物种形态学的信息，以将其纳入Cohen和Poore（1994）的系统发育分析中，后者支持Muller（1991）的建议，即非洲材料需要重新描述。在本研究中，男性和幼虫的Gnathia africana从潮间带的西部和南部非洲的海岸，这种材料是用来重新描述的物种。未发现雌性。非洲的标本与开普敦南非博物馆的标本进行了比较。
A redescription of the adult male and praniza of Gnathia africana Barnard, 1914 is provided from material collected at three localities along the South African coast and from syntypes and other material deposited by the original author. This redescription is based on light and scanning electron microscopy. Knowledge of the gnathiids of the world reflects the location of scientists interested in these isopods rather than their actual distribution. Almost one quarter of the known species are described from Australia (Cohen and Poore 1994). Africa is poorly represented. The only records are those of Barnard (1914a,b, 1920, 1925) describing four species from southern Africa (Gnathia africana Barnard, 1914; Gnathia spongicola Barnard, 1920; Gnathia disjuncta Barnard, 1920; and Gnathia cryptopais Barnard, 1925) and a single record by Muller (1989) from Kenya (Gnathia wolffi Muller, 1989). Although Monod (1926) recorded the southern African species in his monograph, he included Barnard's original descriptions without additional information. None of these works provided sufficient information on the morphology of the southern African species for their inclusion in the phylogenetic analysis of Cohen and Poore (1994), who supported Muller's (1991) sug- gestion that the African material needed redescription. In the present study, males and larvae of Gnathia africana were collected from the intertidal zone of the west and south coasts of southern Africa and this material is used to redescribe the species. No females were found. Three populations of G. africana were compared with the type material in the South African Museum, Cape Town.