Alopoglossidae is a family of Neotropical lizards composed of 23 species allocated in two genera (Alopoglossus and Ptychoglossus). There is a lack of knowledge about the phylogenetic relationships and systematics of this family. Published phylogenies that include alopoglossid species have very low taxon coverage within the family, and are usually based on limited character sampling. Considering these shortcomings, we infer the phylogenetic relationships of Alopoglossidae—including all but one species in the family—based on the combined analyses of DNA sequences and morphological characters. We use four loci (the mitochondrial 12S, 16S and ND4; the nuclear C‐mos) and a matrix of 143 phenotypic characters from scutellation, tongue morphology, hemipenis morphology, and osteology. The dataset is analyzed with Maximum Parsimony, with four alternative weighting schemes: three under Extended Implied Weighting, and one with equal weighting. The respective resulting topologies are compared in a sensitivity analysis framework. Our analyses support the paraphyly of Ptychoglossus, with Alopoglossus nested within it. We provide an updated classification for the family, where Ptychoglossus Boulenger, 1890 is considered a junior synonym of Alopoglossus Boulenger, 1885.

中文翻译：

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Microteiid 蜥蜴科 Alopoglossidae (Squamata: Gymnophthalmoidea) 的物种级全证据系统发育

Alopoglossidae 是一个新热带蜥蜴科，由 23 个物种组成，分为两个属（Alopoglossus 和 Ptychoglossus）。对该科的系统发育关系和系统学缺乏了解。已发表的系统发育学包括舌齿亚目物种在科内的分类单元覆盖率非常低，并且通常基于有限的字符采样。考虑到这些缺点，我们基于对 DNA 序列和形态特征的综合分析推断了 Alopoglossidae 的系统发育关系 - 包括该科中除一个物种外的所有物种。我们使用四个基因座（线粒体 12S、16S 和 ND4；核 C-mos）和一个包含 143 个表型特征的矩阵，这些特征来自盾形、舌形态、半阴茎形态和骨学。使用最大简约分析数据集，有四种可选的加权方案：三种在扩展隐含加权下，一种具有相等的权重。在敏感性分析框架中比较相应的结果拓扑。我们的分析支持 Ptychoglossus 的副系，其中 Alopoglossus 嵌套在其中。我们为该家族提供了更新的分类，其中 Ptychoglossus Boulenger, 1890 被认为是 Alopoglossus Boulenger, 1885 的初级同义词。