|Caribbean Brown Tube Sponge (Agelas conifera)|
by B. N. Sullivan
Although they resemble cannons, these 'big guns' are sponges -- Caribbean Brown Tube Sponges (Agelas conifera) to be exact. We found this particular cluster of sponges standing guard on Bloody Bay Wall on the north side of Little Cayman Island. The two larger tubes were at least two feet long.
Here is another photo of Ageles conifera that we posted a few years ago.