A type of crustacean, approximatly 5 mm in length. Probably Jassa slatteryi, a cosmopolitan species in the sea. It looks like a shrimp, with brown markings on its body, legs and antennae. Its head has two pairs of antennae, one of which is noticeably large. The thorax is segmented, and like a shrimp, each segment has legs, but this animal has two pairs of large and small grasping appendages for capturing food. The abdomen also resembles that of shrimp, but doesn't have tail fan. In Japan, Janualy 2017.

生わかめに付いていた生き物その２　#ヨコエビ 。
#フトヒゲカマキリヨコエビ (Jassa slatteryi)？
こちらも世界中にいるらしい。　そしてワカメにいる。

かなりエビ寄りの形だけどエビとは違う…ワンダー…

参考： 「東京湾のヨコエビガイドブック」 marine1.bio.sci.toho-u.ac.jp/tokyobay/gam...

2017年1月撮影。
#自然観察 #海 #甲殻類 #Amphipod #Gammaridea #CC0