2018 年 27 巻 p. 17-27
Distribution of the crabs were investigated at the estuary areas around Sagami Bay, Shizuoka Prefecture and Kanagawa Prefecture, central Japan from May 2015 to December 2017. The number of the species of the crabs came up to 21. Noteworthly, four species (Metopograpsus thukuhar, Ptychognathus capillidigitatus, Parapyxidognathus deianira and Parasesarma tripectinis) should be the northernmost records for these species in Japan.