Abstract

Two small spider crabs belonging to a species of Platymaia Miers, 1885 (Inachidae) were photographed by video feed from the Nautilus Exploration Program vessel Nautilus at 706 m off American Samoa, Pacific Ocean. Individuals swam by extending and contracting their very long, slender legs, rising above the sea floor by an estimated 2 m. These crabs do not have paddles on the fifth pereiopods, but they have setose legs. This is the first report of swimming in the wild for a crab of this genus.

中文翻译：

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Platymaia Miers，1885年（十足目：Brachyura：Inachidae）会游泳

摘要

鹦鹉螺探索计划船鹦鹉螺号在太平洋距美国萨摩亚706 m处的录像显示，拍摄了两只小蜘蛛蟹，它们属于Platymaia Miers，1885年（In鱼科）。人们通过伸展和收缩非常长而细长的双腿游动，抬高了大约2 m的海床。这些螃蟹在第五个脚足类动物上没有桨，但是它们的腿很固定。这是第一次为这种蟹在野外游泳。