Gastrotheca Fitzinger, 1843 tadpole morphology: Larval cranium description and its evolutionary implications (Amphibia: Anura: Hemiphractidae)

IF 1.5 4区医学 Q2 ANATOMY & MORPHOLOGY Journal of Morphology Pub Date : 2024-08-21 DOI:10.1002/jmor.21766

Manuella Folly, Lucas C. Amaral, Luiz F. L. da Silveira, Sergio P. de Carvalho-e-Silva, Pedro Henrique dos Santos Dias

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Abstract

Hemiphractids have a singular mode of reproduction that involves maternal care. The Andean-endemic Gastrotheca marsupiata species group includes direct-developing and tadpole-bearing species, the latter trait being unique among Gastrotheca. Larval morphology has proven to be a valuable source of evidence to understand the taxonomy and evolution of frogs but remains understudied in Hemiphractids. Herein, we redescribe the larval cranium of G. espeletia, G. gracilis, G. marsupiata, G. peruana, G. pseustes, and G. riobambae, and describe those of G. aureomaculata, G. chrysosticta, G. litonedis, G. monticola and G. psychrophila. Additionally, based on the data gathered, we explore their phylogenetic significance, expanding the knowledge regarding Gastrotheca larval internal morphology. We suggest that the presence of the posterolateral process of crista parotica, the concave palatoquadrate, the quadratoorbital commissure, and the proximal commissures II and III are putative synapomorphies for Gastrotheca. Furthermore, we suggest the long pseudopterygoid process as a putative synapomorphy for Hemiphractyidae.

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Gastrotheca Fitzinger, 1843 蝌蚪形态：幼体颅骨描述及其进化意义（两栖类：无尾目：半戟科）。

半虹彩鳉的繁殖模式非常独特，需要母体的照顾。安第斯特有的Gastrotheca marsupiata物种组包括直接发育和蝌蚪发育的物种，后者在Gastrotheca中是独一无二的。幼体形态学已被证明是了解蛙类分类和进化的重要证据，但对半齿蛙类的研究仍然不足。在此，我们重新描述了 G. espeletia、G. gracilis、G. marsupiata、G. peruana、G. pseustes 和 G. riobambae 的幼体头盖骨，并描述了 G. aureomaculata、G. chrysosticta、G. litonedis、G. monticola 和 G. psychrophila 的幼体头盖骨。此外，根据收集到的数据，我们还探讨了它们的系统发育意义，扩展了对 Gastrotheca 幼虫内部形态的认识。我们认为，腮嵴后外侧突、凹陷的腭胛骨、四眶共同沟以及近端共同沟 II 和 III 的存在是 Gastrotheca 的假同形体。此外，我们还建议将长假翼趾突作为半棘蜓科的推定同形异构。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Morphology 医学-解剖学与形态学

CiteScore

2.80

自引率

6.70%

发文量

119

审稿时长

1 months

期刊介绍： The Journal of Morphology welcomes articles of original research in cytology, protozoology, embryology, and general morphology. Articles generally should not exceed 35 printed pages. Preliminary notices or articles of a purely descriptive morphological or taxonomic nature are not included. No paper which has already been published will be accepted, nor will simultaneous publications elsewhere be allowed. The Journal of Morphology publishes research in functional, comparative, evolutionary and developmental morphology from vertebrates and invertebrates. Human and veterinary anatomy or paleontology are considered when an explicit connection to neontological animal morphology is presented, and the paper contains relevant information for the community of animal morphologists. Based on our long tradition, we continue to seek publishing the best papers in animal morphology.