日本産アミ類の 2 新種と Acanthomysis quadrispinosa の新記録

概要

論文の詳細を見る
Descriptions of two new species, Exacanthomysis japonica and Acanthomysis longicauda, and a new record of Acanthomysis quadrispinosa from Japan are given. Exacanthomysis japonica is distinguishable from three known species of the genus by the different number of the carpo-propodus subsegments of third to eighth thoracic endopods, and the shape and armature of the distal part of telson. Acanthomysis longicauda is different from five allied species, in which a transverse spine row is present on the sixth abdominal somite, in the sizes of eye and distal spines of telson. Acanthomysis quadrispinosa has been known from Madagascar and the northern South China Sea up to date. The present occurrence in Japan far extends easterly and notherly the geographic distribution of the species.
国立科学博物館の論文