Sensory mound - Kankyu

…the general term for the mechanoreceptors that line the skin of the head and sides of the body of cyclostomes, fish, and some amphibians; they sense changes in water flow and pressure. Each receptor is called a neuromast, and is a very small, onion-shaped organ with a gelatinous membrane called a cupula that protrudes from its surface. Similar structures are also found in the hearing and balance organs of the inner ear of higher animals.

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…円口類，魚類および一部の両生類の頭部や体側の皮膚に並ぶ機械刺激受容器の総称で，主として水流や水圧の変化を感じる。一つ一つの受容器は感丘neuromastと呼ばれ，タマネギ状のきわめて小さい器官で，表面に突出するゼラチン質のクプラcupulaという薄膜をそなえる。このような構造は高等動物の内耳の聴器や平衡器にもみられる。…

※「感丘」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