Biogeography and its historical process in Indo-west Pacific from the view point of speciation in hermit crabs (Crustacea: Decapoda: Anomura)

根据最近从日本及其邻近海域采集的寄居蟹标本和美国、欧洲和非洲的博物馆和机构收藏的材料，对印度-西太平洋地区分布的寄居蟹进行了调查。特别是，对以下分类群进行了详细的调查。巨蟹科：斑腿亚目、半足亚目、冰岛亚目、巨尾巨尾亚目；副亚目亚目：巨尾巨尾亚目、短尾巨尾亚目、长尾巨尾亚目、角角亚目、巨尾巨尾亚目、巨尾巨尾亚目、代代亚科：角亚目、第欧根亚目、伪亚目亚目、达达努斯亚目；盲节亚目：短尾巨尾亚目。研究发现了许多新物种以及日本新发现的物种，特别是在纪伊半岛的太平洋海岸和该地区以南的地区。首次对日本海全海域潮间带和浅水区寄居蟹类区系进行了调查，共发现寄居蟹54种，隶属于3科18属，其中带原蟹属1新种。这种寄居蟹动物群主要由温带日本及其邻近水域特有的物种组成，但也有几种广泛分布于印度-西太平洋地区，少数分布于北太平洋地区。

In this study, hermit crabs distributed in Indo-west Pacific area were investigated on the basis of the specimens recently collected from Japan and its adjacent waters and the material housed in museums and institutions in USA, Europe and Africa. In particular, the following taxa were investigated in details. Paguridae : Catapagurus, Hemipagurus, Icelopagurus, Tomopaguropsis Micropagurus ; Parapaguridae : Parapagurus, Sympagurus, Oncopagurus, Tylaspis, Tsunogaipagurus, Paragiopagurus, Strobopagurus, Diogenidae : Calcnius, Diogenes, Pseudopagurustes, Dardanus ; Coenobiditae : Coenobita. The study found many new species as well as species new to Japan, in particular from Pacific coast of Kii Peninsula and south to the area. Hermit crab fauna from intertidal and shallow water of whole areas of the Sea of Japan was first investigated, in which 54 species belonging to three families and 18 genera were found, with a new species of Diogenes. This hermit crab fauna was primarily composed of species endemic to temperate Japanese and its adjacent waters ; however several were widely distributed in Indo-west Pacific regions, and a few in northern Pacific areas.