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New osteological and morphological data of four species of Aphaniops (Teleostei; Aphaniidae)
Journal of Applied Ichthyology ( IF 0.9 ) Pub Date : 2020-08-02 , DOI: 10.1111/jai.14074
Eleni A. Charmpila 1 , Azad Teimori 2 , Jörg Freyhof 3 , Anton Weissenbacher 4 , Bettina Reichenbacher 1, 5
Affiliation  

Aphaniops dispar, widespread around the Arabian Peninsula, was recently separated in four species (A. dispar, A. hormuzensis, A. kruppi, A. stoliczkanus) by molecular results and colour patterns, but the morphological differences are small and call for more studies. Here we report differences in skeleton and median fin osteology of these species. In addition, we introduce the term 'modified caudal vertebra' to describe caudal vertebrae that are not directly associated with caudal ray support but are visibly modified from a 'usual' caudal vertebra. Aphaniops hormuzensis, an endemic species to southern Iran, has a significantly higher number of modified caudal vertebrae compared to the more widespread A. stoliczkanus and A. dispar, and also to A. kruppi. This is a surprising result as the caudal skeleton and related structures of the posterior caudal vertebral column have yielded successful results in separating between families or genera, but there are only a few studies that have examined these structures for their role in species diagnosis. Our study also highlights that state‐of‐the‐art methods in X‐raying and improved staining procedures assist in the discrimination of superficially similar species.

中文翻译:

四种Aphaniops(Teleostei; Aphaniidae)的新骨学和形态学数据

Aphaniops毒蛾,周围的阿拉伯半岛广泛,在四个品种(最近被分离A.毒蛾A. hormuzensisA. kruppiA. stoliczkanus)通过分子结果和彩色图案,但形态差异很小,呼吁更多的研究。在这里,我们报告这些物种的骨骼和中鳍鳍骨学的差异。另外,我们引入术语“修饰的尾椎骨”来描述与尾椎射线支撑不直接相关但从“通常的”尾椎骨明显修饰的尾椎骨。霍尔木兹海豚伊朗南部的一种特有物种,与更广泛分布的A. stoliczkanusA. dispar以及A. kruppi相比,其修饰的尾椎骨数量要多得多。这是一个令人惊讶的结果,因为尾骨架和后尾椎柱的相关结构已成功分离出科或属,但是只有少数研究检查了这些结构在物种诊断中的作用。我们的研究还强调了X射线检查的最新方法和改进的染色程序有助于区分表面相似的物种。
更新日期:2020-08-02
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