English Dictionary

swimming crab

名詞

Any of many marine crabs of the family Portunidae, whose hindmost legs are flattened into paddles.

日本語の意味

ポルツニダエ科に属する海洋性のカニで、後ろ脚がひれ状に平たくなっており、水中での推進に適した形状をしています。

We watched a swimming crab propel itself across the shallow bay with its flattened hind legs.

私たちは、後脚が櫂のように平たくなったワタリガニが浅い入り江を泳いで渡るのを見ました。

意味（1）

Any of many marine crabs of the family Portunidae, whose hindmost legs are flattened into paddles.

In normal years, swimming crabs do not occur in the Humboldt Current area south of Paita (5°S) but are restricted to the extreme north of Perú, Ecuador and Colombia.

swimming crabs （ plural ）