First description of buccopharyngeal anatomy in Pelodryadinae larvae: Morphological comparison and systematic implications (Anura: Hylidae: Pelodryadinae: Litoria rubella and Ranoidea caerulea),Journal of Morphology

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First description of buccopharyngeal anatomy in Pelodryadinae larvae: Morphological comparison and systematic implications (Anura: Hylidae: Pelodryadinae: Litoria rubella and Ranoidea caerulea)
Journal of Morphology ( IF 1.5 ) Pub Date : 2023-10-08 , DOI: 10.1002/jmor.21651
Pedro Henrique Dos Santos Dias ₁

Affiliation

Pelodryadinae, the Australian tree frogs, is a monophyletic group endemic to the Australo-Papuan region. Although we have a relatively good knowledge about tadpoles' phenotypic diversity in terms of external morphology, information about internal anatomy is rare for the subfamily; for instance, their buccopharyngeal cavity is completely unknown. Herein I describe for the first time the buccopharyngeal anatomy of two pelodryadins: Litoria rubella and Ranoidea caerulea. I compare my results with available evidence from Phyllomedusidae, that is, the sister clade to Pelodryadinae, and briefly comment on buccopharyngeal cavity within Hylidae. Both species can be readily distinguished based on lateral ridge, postnarial, buccal roof arena, infralabial papillae, and lingual papillae. Variation between the two species may suggest a large diversity within Pelodryadinae. Pelodryadinae and Phyllomedusinae present similar buccopharyngeal morphologies, although Agalychnis callidryas has a unique morphology and putative apomorphic transformations can be observed in Pithecopus + Phyllomedusa, Ranoidea, and Phasmahyla.

中文翻译：

Pelodryadinae 幼虫的颊咽解剖结构的首次描述：形态比较和系统意义（无尾：Hylidae：Pelodryadinae：Litoria rubella 和 Ranoidea caerulea）

Pelodryadinae，澳大利亚树蛙，是澳大利亚-巴布亚地区特有的单系类群。尽管我们对蝌蚪亚科的表型多样性在外部形态方面有相对较好的了解，但有关其内部解剖结构的信息却很少。例如，他们的颊咽腔是完全未知的。在此，我首次描述了两种 pelodryadins 的颊咽解剖结构：Litoria rubella和Ranoidea caerulea。我将我的结果与来自Phyllomedusidae（即Pelodryadinae的姐妹分支）的现有证据进行了比较，并对Hylidae内的颊咽腔进行了简要评论。根据侧脊、后唇、颊顶、唇下乳头和舌乳头，可以很容易地区分这两个物种。这两个物种之间的差异可能表明Pelodryadinae内部存在巨大的多样性。Pelodryadinae 和 Phyllomedusinae 表现出相似的颊咽形态，尽管Agalychnis callidryas具有独特的形态，并且在Pithecopus + Phyllomedusa、Ranoideea和Phasmahyla中可以观察到推定的无形转化。

更新日期：2023-10-08

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