Abstract This is the first study to combine morphological and molecular characters to infer the phylogenetic relationships among catsharks. All currently valid genera classified in the family Scyliorhinidae s.l. and representatives of other carcharhinoid families plus one lamnoid and two orectoloboids were included as terminal taxa. A total of 143 morphological characters and 44 NADH2 sequences were analysed. Parsimony analyses under different weighting schemes and strengths were used to generate hypotheses of phylogenetic relationships. The phylogenetic analysis of 78 terminal taxa, using the combined dataset and weighting each column separately (SEP; k = 3) resulted in one most-parsimonious cladogram of 4441 steps with the greatest internal resolution of clades and strongest support. The main changes in nomenclature and classification are the revised definition and scope of Scyliorhinidae, Apristurus and Pentanchus and the revalidation of Atelomycteridae. The monophyly of Pentanchidae is supported, as is that of most catshark genera. Two new subfamilies of the family Pentanchidae are defined: Halaelurinae subfam. nov. and Galeinae subfam. nov. Our analysis emphasizes the relevance of morphological characters in the inference of evolutionary history of carcharhinoids and sheds light on the taxonomic status of some genera in need of further exploration.

中文翻译：

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猫鲨的系统发育和新分类（软骨鱼类：Elasmobranchii：Carcharhiniformes）

摘要 这是第一个结合形态学和分子学特征来推断猫鲨之间系统发育关系的研究。所有当前有效的属都归类为 Scyliorhinidae sl 和其他 carcharhinoid 家族的代表加上一个 lamnoid 和两个 orectolobooids 被包括为末端分类群。共分析了143个形态特征和44个NADH2序列。不同加权方案和强度下的简约分析被用来产生系统发育关系的假设。78 个末端分类群的系统发育分析，使用组合数据集并分别加权每一列（SEP；k = 3）导致一个最简洁的 4441 个步骤的进化枝图，具有最大的进化枝内部分辨率和最强的支持。命名和分类的主要变化是修改了Scyliorhinidae、Apristurus和Pentanchus的定义和范围以及重新验证了Atelomycteridae。支持 Pentanchidae 的单一系，就像大多数猫鲨属一样。定义了 Pentanchidae 家族的两个新亚科： Halaelurinae subfam。十一月 和Galeinae subfam。十一月 我们的分析强调了形态特征在推断类炭疽进化史中的相关性，并阐明了一些需要进一步探索的属的分类地位。海藻亚科亚家族。十一月 和Galeinae subfam。十一月 我们的分析强调了形态特征在推断类炭疽进化史中的相关性，并阐明了一些需要进一步探索的属的分类地位。海藻亚科亚家族。十一月 和Galeinae subfam。十一月 我们的分析强调了形态特征在推断类炭疽进化史中的相关性，并阐明了一些需要进一步探索的属的分类地位。