Costasiella formicaria (Baba, 1959)

オオアリモウミウシ Costasiella formicaria
Photographed by
kominekazuyoshi 小峰かずよし
Location
Usami, Higashiizu, Japan
Date
2019/03/04
Length
??mm
Depth
10.0m
Water temperature
15.0℃