earstone

n.

耳石；

Earstone composition reflects migration behaviour of the Greenland squid Gonatus fabricii
The role of ear stone size in hair cell acoustic sensory transduction.
Analysis of Behaviour and Habituation of Fish Exposed to Diminished Gravity in Correlation to Inner Ear Stone Formation - A Sounding...
1G22 Basic Studies for the Secession Medical Treatment of the Ear Stone Adhering to Cupula
Ear stones speak volumes to fish researchers.
Comparative morphological studies on the otoliths (Ear stones or crystals) in some marine and fresh water fishes
Postulated anti-diabetic effect of fish ear stone (Otolith) in experimental animals
Comparison of morphological characteristics of Lapillus ear stone in four species of the genus Capoeta in Iran
[Fish larvae and ear stones [otoliths]]
Ear stones speak volumes to fish researchers. (rings on otoliths contain information about fish environment and behavior)