Costasiella formicaria (Baba, 1959)

オオアリモウミウシ Costasiella formicaria
Photographed by
bighit2000 Manabu Kakegawa
Location
Batu Niti, Tulamben, Pulau Bali, Indonesia
Date
2018/11/08
Length
4mm
Depth
18.0m
Water temperature
29.0℃