Cladistic relationships within Amphiglena Claparède (Polychaeta: Sabellidae) with a new species and a redescription of A. mediterranea (Leydig)

Cladistic relationships within Amphiglena Claparède (Polychaeta: Sabellidae) with a new species and a redescription of A. mediterranea (Leydig)
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Amphiglena Claparède(多毛类:Sabellidae)与新物种的分支关系以及 A. mediterranea(Leydig)的重新描述

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发表时间:
1997
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影响因子:
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通讯作者:
M. Gambi
M. Gambi
中科院分区:
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文献类型:
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作者:
G. Rouse;M. Gambi

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来自伯利兹的一新种Amphiglena Claparede 1864, A. lindae n. sp.,有多达5对放射状体,8只胸部骗老虎和多达26只腹部骗老虎。这个物种,像其他两栖动物一样,是一个同时具有卵和精子的雌雄同体。然而,在A. lindae中,配子在腹部中部而不是前腹部被发现。它的独特之处在于在背唇的底部有一对红色的精囊。本属模式种A. mediterranea Leydig, 1851年的重新描述也根据意大利的资料提供。没有发现地中海支原体的模式材料,但认为没有必要指定新类型。然后,使用基于Laonome/Amphiglena分支姐妹群的6个属的外群来评估Amphiglena物种之间的分支关系。其中两种为内群的一部分。单一性……
A new species of Amphiglena Claparede 1864, A. lindae n. sp., is described from Belize having up to five pairs of radioles, eight thoracic chaetigers, and as many as 26 abdominal chaetigers. This species, like other Amphiglena spp., is a simultaneous hermaphrodite with eggs and sperm developing in abdominal chaetigers. However, in A. lindae the gametes are found in the mid-abdominal region rather than the anterior abdomen. It is also unique in having a pair of spermathecae with red pigmentation at the base of the dorsal lips. A redescription of the type species of the genus, A. mediterranea Leydig, 1851, is also provided based on material from Italy. No type material of A. mediterranea was ever deposited but it is thought unnecessary to designate neotypes. The cladistic relationships among the species of Amphiglena are then assessed using an outgroup based on the six genera that are the sister group to the Laonome/Amphiglena clade. Two species of Laonome are included as part of the ingroup. The monophyly ...