Costasiella formicaria (Baba, 1959)

オオアリモウミウシ Costasiella formicaria
Photographed by
natanitomohiro 名谷朋浩
Location
Futami, Hontou Hokubu(Ourawan), Okinawa, Japan
Date
2017/02/18
Length
7mm
Depth
3.0m
Water temperature
21.0℃