Pedro Henrique Dos Santos Dias, Jackson R Phillips, Martín O Pereyra, D Bruce Means, Alexander Haas, Philippe J R Kok
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引用次数: 0
摘要
蝌蚪是检验系统学和分类学假设的重要证据。通过分子系统发育，在圭亚那采集的鞘翅目蝌蚪最初被归入Rhaebo nasicus。随后对幼体和成体形态特征的分析表明，在包括 R. nasicus 和 R. ceratophrys 的支系中存在同形异构现象，这促使人们认识到一个新的属，即本文描述的 Adhaerobufo 属。这一新属与其他布福类的区别在于其特殊的表型特征，包括扩大的扇形口盘和独特的乳突排列，以及幼虫阶段存在某些肌肉和腹膜空泡。然而，只有少数成虫的外部特征（如增大的眼睑、眼下奶油斑）似乎能可靠地与相关属区分开来。这项研究强调了幼虫形态学在无尾目动物系统学中的重要意义，并为了解布氏无尾目动物中套肠幼虫和胃口幼虫的进化提供了新的视角。
The remarkable larval morphology of Rhaebo nasicus (Werner, 1903) (Amphibia: Anura: Bufonidae) with the erection of a new bufonid genus and insights into the evolution of suctorial tadpoles.
Tadpoles serve as crucial evidence for testing systematic and taxonomic hypotheses. Suctorial tadpoles collected in Guyana were initially assigned to Rhaebo nasicus through molecular phylogeny. Subsequent analysis of larval and adult morphological traits revealed synapomorphies within the clade encompassing R. nasicus and R. ceratophrys, prompting the recognition of a new genus described herein as Adhaerobufo. The new genus is distinguished from other bufonids by specific phenotypic traits including an enlarged, suctorial oral disc with distinct papillae arrangements, and the presence of certain muscles and narial vacuities at the larval stage. However, only a few adult external characteristics (e.g., enlarged eyelids, infraocular cream spot), seem to be reliably discriminative from related genera. This study underscores the significance of larval morphology in anuran systematics and offers new insights into the evolution of suctorial and gastromyzophorous larvae within bufonids.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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