Museum Victoria, GPO Box 666, Melbourne, Vic. 3000, Australia.
Mol Phylogenet Evol. 2011 Jul;60(1):152-69. doi: 10.1016/j.ympev.2011.03.032. Epub 2011 Apr 22.
The tropical to subtropical squat lobster Uroptychus nasoVan Dam, 1933 (Chirostylidae) is a widely distributed species originally described from Indonesia, subsequently reported from the Philippines, Taiwan, Japan and it has recently been discovered on the continental slope of north-western Australia. Populations of U. naso occur along the Indo-Pacific Ocean continental margin crossing the recently proposed marine analog of Wallace's line, responsible for past population fragmentation and ancient speciation. Sequence data from mitochondrial (COI, 16S) and nuclear (H3) DNA regions were used to assess genealogical relationships among geographically disjoint populations of the species throughout its known distribution range. Several mitochondrial lineages, corresponding to geographically isolated populations and three cryptic species were encountered, namely, U. naso sensu stricto and two new species, Uroptychus cyrano and Uroptychus pinocchio spp. nov. U. pinocchio is encountered only in Japan, Taiwan and the Philippines; U. cyrano is confined to north-western Australia; and U. naso consists of three genetically distinct populations distributed on both sides of the marine Wallace's line. Fossil-calibrated divergence time approximations indicated a most recent common ancestor (MRCA) for U. naso and U. cyrano from early Eocene whilst northern and southern populations of the former have been separated probably since the Miocene. These patterns may represent a standard distribution trend for several other deep-sea invertebrate species with similar geographical ranges.
热带至亚热带 squat lobster Uroptychus nasoVan Dam, 1933（Chirostylidae）是一种分布广泛的物种，最初在印度尼西亚被描述，随后在菲律宾、台湾、日本有报道，最近在澳大利亚西北部的大陆斜坡上也有发现。U. naso 种群分布在沿印度洋-太平洋大陆边缘，跨越最近提出的华莱士线的海洋类似物，这是过去种群分裂和古老物种形成的原因。来自线粒体（COI、16S）和核（H3）DNA 区域的序列数据用于评估该物种在其已知分布范围内地理上不连续的种群之间的系统发育关系。在整个已知分布范围内，遇到了几个线粒体谱系，对应于地理隔离的种群和三个隐种，即 U. naso 本身和两个新种，Uroptychus cyrano 和 Uroptychus pinocchio spp. nov. U. pinocchio 仅在日本、台湾和菲律宾发现；U. cyrano 局限于澳大利亚西北部；而 U. naso 由分布在海洋华莱士线两侧的三个具有明显遗传差异的种群组成。化石校准的分歧时间估计表明，U. naso 和 U. cyrano 的最近共同祖先（MRCA）来自早始新世，而前者的北部和南部种群可能自中新世以来就已经分开了。这些模式可能代表了具有类似地理范围的其他几种深海无脊椎动物的标准分布趋势。
