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Another giant species of the microhylid frog genus Cophixalus Boettger, 1892 from the mountains of Papua New Guinea and first records of procoracoids in the genus
Zoosystematics and Evolution ( IF 2 ) Pub Date : 2023-03-01 , DOI: 10.3897/zse.99.97006
Rainer Günther , Chris Dahl , Stephen J. Richards

 A new arboreal species of the microhylid genus Cophixalus Boettger, 1892 is described from montane rainforest on Papua New Guinea’s central cordillera. With a male SUL exceeding 44.0 mm, the new species is among the largest members of the genus; the only other Papuan species known to reach this size is C. riparius Zweifel, 1962. The new species differs from C. riparius in a small number of mensural characters and by its distinct advertisement call, a single explosive ‘bark’ uttered singly or in rapid series. In contrast, calls of C. riparius recorded near the type locality are a series of drawn out, rasping croaks. Calls of the two species are analysed and compared. The two species also appear to have different ecologies, with the new species found only high in trees, while C. riparius is often encountered in vegetation on or near the forest floor. Examination of osteological features revealed the presence of cartilaginous procoracoids in both species, representing the first records of procoracoids in the speciose genus Cophixalus. Lack of procoracoids is traditionally considered an important diagnostic character for defining Cophixalus but both species also lack clavicles, a character considered diagnostic for Cophixalus and a key feature distinguishing the genus from the closely related Oreophryne Boettger, 1895. Because preliminary published genetic data indicate that they are nested within Cophixalus, we retain both species in that genus until a comprehensive molecular phylogeny of Cophixalus and related genera, particularly Oreophryne, is completed.

中文翻译:

小水蛙属 Cophixalus Boettger 的另一种巨型物种,1892 年来自巴布亚新几内亚的山区,也是该属中原喙壳类动物的第一个记录

 一种新的树栖物种 microhylid 属 Cophixalus Boettger,1892 年在巴布亚新几内亚中部山脉的山地雨林中被描述。雄性 SUL 超过 44.0 毫米,新物种是该属中最大的成员之一;已知达到这种大小的唯一其他巴布亚物种是 C. riparius Zweifel,1962。新物种与 C. riparius 的不同之处在于少量的月经特征以及其独特的广告呼叫,单一的爆炸性“树皮”单独或在快速系列。相比之下,在模式产地附近记录的 C. riparius 的叫声是一连串拖长的、刺耳的嘎嘎声。对这两个物种的叫声进行了分析和比较。这两个物种似乎也有不同的生态,新物种只在树的高处发现,而 C. riparius 经常在森林地面上或附近的植被中遇到。对骨学特征的检查表明,这两个物种中都存在软骨性前喙突,代表了 speciose 属 Cophixalus 中前喙突的第一个记录。缺乏前喙突传统上被认为是定义 Cophixalus 的重要诊断特征,但两个物种也都缺乏锁骨,锁骨被认为是 Cophixalus 的诊断特征,也是区分该属与密切相关的 Oreophryne Boettger 的关键特征,1895。因为初步公布的遗传数据表明它们嵌套在 Cophixalus 中,我们将这两个物种保留在该属中,直到完成 Cophixalus 和相关属,特别是 Oreophryne 的全面分子系统发育。对骨学特征的检查表明,这两个物种中都存在软骨性前喙突,代表了 speciose 属 Cophixalus 中前喙突的第一个记录。缺乏前喙突传统上被认为是定义 Cophixalus 的重要诊断特征,但两个物种也都缺乏锁骨,锁骨被认为是 Cophixalus 的诊断特征,也是区分该属与密切相关的 Oreophryne Boettger 的关键特征,1895。因为初步公布的遗传数据表明它们嵌套在 Cophixalus 中,我们将这两个物种保留在该属中,直到完成 Cophixalus 和相关属,特别是 Oreophryne 的全面分子系统发育。对骨学特征的检查表明,这两个物种中都存在软骨性前喙突,代表了 speciose 属 Cophixalus 中前喙突的第一个记录。缺乏前喙突传统上被认为是定义 Cophixalus 的重要诊断特征,但两个物种也都缺乏锁骨,锁骨被认为是 Cophixalus 的诊断特征,也是区分该属与密切相关的 Oreophryne Boettger 的关键特征,1895。因为初步公布的遗传数据表明它们嵌套在 Cophixalus 中,我们将这两个物种保留在该属中,直到完成 Cophixalus 和相关属,特别是 Oreophryne 的全面分子系统发育。
更新日期:2023-03-02
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