noun
spotted garden eel
A small eel that lives in sandy burrows, often seen in aquariums. Scientific name: Heteroconger hassi.
水族館でチンアナゴが砂から顔を出しているのを見た。
I saw spotted garden eels poking their heads out of the sand at the aquarium.
チンアナゴは臆病で、すぐに砂の中に引っ込む
Spotted garden eels are timid and quickly retreat into the sand.
The name チンアナゴ is a combination of ちん (possibly from 狆, a breed of dog with a similar face) and あなご (conger eel). The exact origin is uncertain.