新热带单殖吸虫纲。56. 来自巴西圣弗朗西斯科河的orthotaenia脂鲤（脂鲤目：脂鲤科）鳃上的Anacanthorus（指环虫科）新物种。
Neotropical Monogenoidea. 56. New species of Anacanthorus (Dactylogyridae) from the gills of matrinchã, Brycon orthotaenia (Characiformes: Characidae), in the Rio São Francisco, Brazil.
作者信息
Monteiro Cassandra M, Kritsky Delane C, Brasil-Sato Marilia C
机构信息
Curso de Pós-Graduação em Ciências Veterinárias, Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, 23890-000, Brazil.
出版信息
Folia Parasitol (Praha). 2010 Sep;57(3):164-8. doi: 10.14411/fp.2010.022.
Anacanthorus franciscanus sp. n. and Anacanthorus brevicirrus sp. n. (Dactylogyridae) are described from the gills of the matrinchã, Brycon orthotaenia Günther (Characidae), from the Rio São Francisco in Brazil. Anacanthorusfranciscanus most closely resembles Anacanthorus e[egans and A. kruidenieri from the matrinchõ, Brycon melanopterus, of the Amazon River Basin. It differs from these species in part by having the bulbous proximal end of the hook shank with two translucent regions. Anacanthorus brevicirrus resembles A. franciscanus, A. kruidenieri and A. elegans but is differentiated from these species by its short straight male copulatory organ and by having one translucent region in the bulbous base of the hook shank.
新种弗朗西斯无棘吸虫（Anacanthorus franciscanus sp. n.）和短尾无棘吸虫（Anacanthorus brevicirrus sp. n.）（指环虫科）是从巴西圣弗朗西斯科河的马氏魮脂鲤（Brycon orthotaenia Günther，脂鲤科）鳃上描述的。弗朗西斯无棘吸虫与来自亚马孙河流域马氏魮脂鲤（Brycon melanopterus）鳃上的优雅无棘吸虫（Anacanthorus elegans）和克鲁德无棘吸虫（A. kruidenieri）最为相似。它与这些物种的部分区别在于，钩柄近端呈球根状，有两个半透明区域。短尾无棘吸虫与弗朗西斯无棘吸虫、克鲁德无棘吸虫和优雅无棘吸虫相似，但通过其短而直的雄性交配器官以及在钩柄球根状基部有一个半透明区域与这些物种区分开来。
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