Costasiella formicaria (Baba, 1959)

オオアリモウミウシ Costasiella formicaria
Photographed by
k.nakamura 中村一誠
Location
Wannai, Osezaki, Higashiizu, Japan
Date
2023/12/15
Length
4mm
Depth
3.0m
Water temperature
18.9℃