Costasiella formicaria (Baba, 1959)

オオアリモウミウシ Costasiella formicaria
Photographed by
ysokai 祖開康彰
Location
Nakayukui, Hontou (West coast), Okinawa, Japan
Date
2016/08/10
Length
10mm
Depth
12.0m
Water temperature
30.0℃