Saw a few clumps of this in just one location, about 3m (10 ft) depth, on sand at bottom of riprap. Wondering if it is an invasive species?
Maybe? Being eaten by Aegires albopunctata, which is known to eat this species?! For @imlichentoday :-)
Under a rock in a surge channel
Beset by isopods.
Dive site Buoy #6. Max depth 63ft/19m, avg temp 83F/28C.
Wood Cove Laguna Beach, ~25ft rocky reef. It looked like a southern stag horn bryozoa at first but looking closer at the surface it had pores more like a sponge.
Wood Cove Laguna Beach, ~25ft rocky reef. Looks like Cyamon neon but not sure.
Wood Cove Laguna Beach, ~25ft rocky reef. Had slits.
This was considered a Reniera in the 1975 edition of Light's Manual. It has no known nudibranch predator. As seen in the 2d image, in moving, this sponge grades from lavender-colored in light (on the side of the boulder) to gray-tan in shaded habitat on the underside of the boulder.
UFID 4287, BIOMB-0060