Barnacles (perhaps two species) on a coral branch.

Barnacles (perhaps two species) on a coral branch.

A barnacle, a tube worm, and white brittle stars

A brown barnacle - is it alive or just the shell?

Brown barnacles - are they alive or are these just the shells? What appears to be part of a white holothurian is on the left of the image. A small brittle star is crawling over the holothurian.

A lone sponge and thousands of barnacles are seen in this cobble bottom area. The barnacles seem to thrive in distinct lineal patterns and do not cover the seafloor here randomly.

Barnacles and a small sponge on a cobble surface.

Barnacles and a small sponge on a cobble surface.

A lone white starfish and thousands of barnacles are seen in this cobble bottom area. The barnacles seem to thrive in distinct lineal patterns and do not cover the seafloor here randomly.

Barnacles on a rock surface.

Hermit crab with anemones on back of shell

Hermit crab with anemones on back of shell

Red squat lobster

Long pincer-armed squat lobster

Crab - Lithodes longispina

Orange crab - Lithodes longispina

Orange crab - Lithodes longispina

Orange crab - Lithodes longispina

Hermit crab in white gastropod shell

Red crab - Lithodes longispina next to cup coral

Red crab - Lithodes sp.

Red squat lobster

Red squat lobster

Lobster with what appears to be bioluminescent "fur"

Pycnogonid sea spider

A sea anemone and a hermit crab share a snail shell, providing a wonderful example of commensalism. The anemone has stinging cells that help protect the crab from predators and benefits from being transported as well as receiving scraps from the crab's feeding. When the crab grows and moves to a larger shell , it brings the anemone along to share its new home.

Pycnogonid crab on a rocky bottom.

Orange and white squat lobster

Looking at the bottom side of a small bodied long-legged crab. A sponge is seen behind.

Large long-legged squat lobsters on a very large bright red "black coral" bush.

Hermit crab carrying a large symbiotic anemone on its shell.

Small hermit crab in a beautiful turreted shell.

Squat lobster apparently on top of yellow brittle star in a coral bush.

Squat lobster next to a large orange anemone.

Two spiky lithodes sp. crabs face to face

Large orange crab

A pink spiky squat lobster on a coral bush.

White bodied hermit crab on a sandy substrate

White bodied hermit crab with an anemone on shell on a sandy substrate. Appears to be same species as image expl5698.

Small reddish hermit crab with a white shell.

Small hermit crab on the side of a large sea squirt (tunicate).

Reddish orange anemone and crab.

Small reddish hermit crab with small white shell and small white anemone attached.

White dirty squat lobster

Hermit crab with pretty gastropod shell.

Hermit crab on coral bush branch.

Red lithoides sp. crab with very long antennae.

White lithoides sp. crab with very long clear antennae

Red and orange squat lobster on sandy substrate

A sea anemone and a hermit crab share a snail shell, providing a wonderful example of commensalism. The anemone has stinging cells that help protect the crab from predators and benefits from being transported as well as receiving scraps from the crab's feeding. When the crab grows and moves to a larger shell crab from predators and benefits from being transported as well as receiving