Bonaire Sponge

[bmorescuba]

Finishing IDs for my first trip to Bonaire and I can't nail down this sponge. I saw it in several places, probably 40-60fsw.

My research points me to Ectyoplasia ferox, but that doesn't seem quite right as all the pics of that species don't have the dark spots on them.

My sponge knowledge is pretty lacking, so any help would be appreciated. I'm really only looking for the common name, but I didn't come up with anything for that either.

Thanks!

 

[Kukuisa]

It looks like a Agelas conifera sponge. See also at
The Sponge Guide: Agelas conifera for more images.
Also called Brown tube sponge.