That's what I saw, Sammy

Only this one had a bright pink coral on top.....I found the following article on aquacon.com to be very interesting.
"Perhaps one of the most unique symbiotic relationships in all of the Sea of Cortez is what the aquariest has come to know as the Staghorn Hermit Crab. Very few aquarists have ever encountered these creatures as they are uncommon in the trade and difficult to obtain due to the depth at which they are found. As aquarium specimens, they need a little bit of care in order to be maintained for a long period of time.
The symbiotic relationship between the hermit crab species (Maunocomplanus varians) and the hydrocoral host (Janaria mirabullis) is not well documented, however it is fairly simple to understand. Found from Central gulf of California to Northern Panama, the 2 cm crab benefits by camouflage beneath the coral-like "shell" and in turn, it carries the host around to obtain food that it filters out of the water. The camouflage well protects it from grazing predators. The hydrocoral can reach sizes up to 8 cm in width and 12 cm in height with anywhere from 3 to 32 branches!!!
The crabs are white to rose colored with red mottling and red eyes. The hydrocorals are usually tan, cream, or red. A large , flat, oval-shaped claw can be used by the crab to seal itself inside a hole within the hydrocoral for danger. As the hydrocoral grows, the crab manicures the opening to maintain it's shape. Individual crabs rarely leave their host except to molt and occasionally to find a new host, should the old one die.
Because of the depth at which the Staghorn Hermit's are found (usually beyond 25 meters deep), they are difficult to obtain.
In the aquarium, Staghorn Hermit's should be kept in Reef tanks or fish only tanks where only peaceful type fish reside. They are vulnerabke to attack from large wrasses, large angels, butterfly fish, and puffers. They require a moderate current to facilitate feeding of the hydrocoral, but they do not require light as they are non-photosynthetic. In a reef tank, it is essential to provide them an open flat as they have difficulty overcoming physical barriers. With that in mind, they can be kept in full view at all times by "coralling" them with small rocks. Feeding is easy as their scavenging behavior makes them not at all fussy."
Janey