Costasiella formicaria (Baba, 1959)

オオアリモウミウシ Costasiella formicaria
Photographed by
noblebarimiura 三浦 褒子(HOUKO)
Location
Dropoff, Tulamben, Pulau Bali, Indonesia
Date
2017/07/15
Length
4mm
Depth
18.0m
Water temperature
28.0℃