Costasiella formicaria (Baba, 1959)

オオアリモウミウシ Costasiella formicaria
Photographed by
nobuhiko KIMOTO Nobuhiko
Location
Wannai, Osezaki, Higashiizu, Japan
Date
2013/01/18
Length
5mm
Depth
5.0m
Water temperature
??℃