Akapatchin - Akapatchin

...The first thoracic leg of the A. bisincisus (body length 3.5 cm), which is common on gravel bottoms, is cylindrical and has a horizontal groove on the palm. The pincers of the A. japonicus (body length 4.5 cm), which is common on shallow sandy mud bottoms in inland bays, are relatively long and slender, but they are called "akapatchin" because of their uniform reddish brown body color, and are used as fishing bait. Both species are called pistol shrimp because they make a loud snapping sound, but they are also called pistol shrimp in English. ...

*Some of the terminology explanations that mention "Akapatchin" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…れき底に多いフタミゾテッポウエビA.bisincisus(体長3.5cm)の第1胸脚は円筒形で，掌部に1本の横溝がある。内湾の浅海砂泥底に多いテナガテッポウエビA.japonicus(体長4.5cm)のはさみは比較的細長いが，一様に赤褐色の体色からアカパッチンと呼ばれ，釣りの餌として利用されている。いずれの種もパチンという大きな音をたてるため，テッポウエビの名があるが，英名もpistol shrimpである。…

※「アカパッチン」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報