Two New Species of Toxicocalamus (Squamata: Elapidae) from Papua New Guinea
Two New Species of Toxicocalamus (Squamata: Elapidae) from Papua New Guinea
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巴布亚新几内亚毒菖蒲二新种（有鳞目：菖蒲科）
DOI：
10.1670/17-035
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发表时间：
2017
影响因子：
0.8
通讯作者：
F. Kraus
中科院分区：
文献类型：
--
作者：
F. Kraus
摘要 我描述了来自新几内亚的化石蛇属 Toxicocalamus 的两个新种。第一个仅限于新几内亚东南端的当特尔卡斯托群岛；第二种仅分布于中央高地南部的一个地区。第一个物种是Toxicocalamus loriae组的成员，其成员之间的等级特征很难区分，但可以通过大小、颜色图案和形态变量的差异来区分；它代表了先前使用遗传数据识别出的 T.“loriae”的六个分支之一。属于 T. loriae 的剩余种群需要进一步收集和研究以阐明它们的分类关系。第二种物种在形态上更加独特，并且与 Toxicocalamus stanleyanus 最相似。人们从单个标本中得知它，但它发生在一个几乎没有明显地形障碍的地区，因此无法确定它在中部高地南部山麓的更广泛范围内的分布范围。
Abstract I describe two new species of the fossorial elapid snake genus Toxicocalamus from New Guinea. The first is restricted to the D'Entrecasteaux Islands off the southeastern tip of New Guinea; the second is known from only a single locality along the southern versant of the Central Highlands. The first species is a member of the Toxicocalamus loriae group, whose members are poorly differentiated from each other by scalational features but can be distinguished by differences in size, color pattern, and morphometric variables; it represents one of six clades of T. “loriae” previously identified using genetic data. Remaining populations assigned to T. loriae require further collecting and research to clarify their taxonomic relationships. The second species is more morphologically distinct and is most similar to Toxicocalamus stanleyanus. It is known from a single specimen, but it occurs in a region with few obvious topographic barriers, leaving uncertain the extent to which it may range more broadly across the southern foothills of the Central Highlands.