Yellow tube sponge

Yellow tube sponge
Phylum Porifera (sponges)
Aplysina fistularis
0 to 100+ ft
As its name accurately states, this sponge develops bright yellow to yellow-green tubes. The tubes generally grow in clusters from a common base. They commonly reach a height of 20 inches (50 cm), but can grow to 4 feet (120 cm). The texture is smooth and rubbery, with the outside surface appearing lumpy. The yellow tube sponge is abundant throughout the Caribbean, including the Cayman Islands. Small gobies and arrow crabs frequently inhabit these sponges.

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