ABSTRACT Recent data from the mitochondrial genome reveal six lineages of Gulf Coast Waterdogs traditionally classified as Necturus beyeri. Here, we use patterns of colour and body size, along with previously published data, to reveal a large, heavily spotted phenotype with an unstriped larva possessing numerous white spots; we re-describe N. beyeri to correspond to this phenotype. We also reveal a small, weakly spotted phenotype possessing an unstriped larva lacking numerous white spots. This phenotype characterises the Apalachicola and Escambia lineages, which current evidence suggests are paraphyletic. We reject taxonomies that place these two lineages in N. lodingi because the type specimen of this species appears to be a melanistic member of N. beyeri. Therefore, we describe the Apalachicola and Escambia lineages as independent new species. http://ww.zoobank.org/urn:lsid:zoobank.org:act:C8508CCB-F54F-4DC8-B61D-56966A3F1CC8 http://www.zoobank.org/urn:lsid:zoobank.org:act:F044B2CC-55F0-4FFA-A312-9CAD9E73CD69

中文翻译：

---

颜色和大小揭示了来自美国墨西哥湾沿岸平原的 Necturus (Caudata: Proteidae) 的隐藏多样性

摘要 线粒体基因组的最新数据揭示了墨西哥湾沿岸水犬的六个谱系，传统上归类为 Necturus beyeri。在这里，我们使用颜色和体型的模式，以及先前公布的数据，揭示了一个大的、有严重斑点的表型，其中一只没有条纹的幼虫有许多白点；我们重新描述 N. beyeri 以对应此表型。我们还揭示了一个小的、弱斑点的表型，它拥有一个没有许多白点的无条纹幼虫。这种表型表征了 Apalachicola 和 Escambia 谱系，目前的证据表明它们是并系的。我们拒绝将这两个谱系置于 N. lodingi 的分类法，因为该物种的模式标本似乎是 N. beyeri 的黑化成员。因此，我们将 Apalachicola 和 Escambia 谱系描述为独立的新物种。