Netted Barrel Sponge

Description:

Inverted cones with relatively thin walls, greenish to purplish in the outside, bright yellow inside, turning purple in air. Skeleton is a pithed spongin fiber network forming the walls of a honeycomb, which show on the surface.

Habitat:

Sep 13, 2017. Night dive in Bari Reef, Bonaire. In coral reef drop-off.