Institute of Agricultural Research-Station for Agricultural Research of Limbe-Batoke, PO Box 77, Limbe, Cameroon.
Institute of Agricultural Research-Specialized Research Center for Marine Ecosystems, PO Box 219, Kribi, Cameroon.
Parasite. 2022;29:37. doi: 10.1051/parasite/2022035. Epub 2022 Jul 18.
Recently in Cameroon, two species belonging to Quadriacanthus: Q. anaspidoglanii Akoumba, Tombi & Bilong Bilong, 2017 and Q. euzeti Nack, Pariselle & Bilong Bilong, 2016 have been recorded on gill filaments of Notoglanidium macrostoma (Siluriformes, Claroteidae) in the Memou'ou River (Nyong Basin) and Papyrocranus afer (Osteoglossiformes, Notopteridae) in Lake Ossa, respectively. These records have been considered the result of lateral transfers from Clariidae to a Claroteidae host for the first case (parasitism of N. macrostoma by Q. anaspidoglanii) and from Clariidae or Bagridae to a Notopteridae host for the second (parasitism of P. afer by Q. euzeti). In this paper, the investigation of interspecific relationships among Quadriacanthus spp. parasitizing Clariidae, Bagridae, Claroteidae and Notopteridae in Cameroon resulted in the record of Q. anaspidoglanii from N. macrostoma, Q. euzeti from P. afer, a new record of Q. levequei Birgi, 1988 from Clarias jaensis in the Nyong River, and the description of Q. barombiensis n. sp. from Clarias maclareni in Lake Barombi Mbo. The newly identified species is characterized by having an accessory piece ending in one small hook and the median expansion of its dorsal bar with two filaments. Phylogenetic analysis based on 28S rDNA sequences confirms that the Quadriacanthus spp. parasitizing gill filaments of non-clariid hosts in Cameroon originate from lateral transfers from clariid fishes, and that Clariidae are ancestral hosts of these monogenean species.
最近在喀麦隆，记录到两种 Quadriacanthus 物种寄生在 Notoglanidium macrostoma（Siluriformes，Claroteidae）的鳃丝上，一种是 Quadriacanthus anaspidoglanii Akoumba、Tombi & Bilong Bilong，2017，另一种是 Quadriacanthus euzeti Nack、Pariselle & Bilong Bilong，2016，前者来自 Memou'ou 河（Nyong 盆地），后者来自 Lake Ossa 的 Papyrocranus afer（Osteoglossiformes，Notopteridae）。这些记录被认为是第一次案例（寄生在 N. macrostoma 的 Q. anaspidoglanii）从 Claroteidae 到 Claroteidae 宿主的侧向转移的结果，以及第二次（寄生在 P. afer 的 Q. euzeti）从 Claridae 或 Bagridae 到 Notopteridae 宿主的侧向转移的结果。在本文中，对喀麦隆寄生在 Claridae、Bagridae、Claroteidae 和 Notopteridae 中的 Quadriacanthus spp. 种间关系的调查结果记录了 Q. anaspidoglanii 寄生在 N. macrostoma，Q. euzeti 寄生在 P. afer，一种新的 Q. levequei Birgi，1988 记录来自 Nyong 河的 Clarias jaensis，以及 Q. barombiensis n. sp. 从 Barombi Mbo 湖的 Clarias maclareni 中描述。新鉴定的物种的特征是有一个附件在一个小钩结束和它的背杆的中央扩展与两个灯丝。基于 28S rDNA 序列的系统发育分析证实，寄生在喀麦隆非 clarid 宿主鳃丝上的 Quadriacanthus spp. 起源于 clarid 鱼类的侧向转移，而 Claridae 是这些单殖吸虫物种的原始宿主。
