Pachastrella cribrum
Pachastrella cribrum is a species of sponge belonging to the family Pachastrellidae, that was first described in 1914 by Friedrich Lebwohl.
It is found in both South Korea and Japan, on Eno Island.
This sponge is usually yellow, but sometimes ia beige or a light brown. It attaches to rocks at depths from 20 to 50 m.