If you have never been scuba diving, it might be hard to put in to perspective the size of the unusual creatures that are found under the sea. The Peltodoris nobilis (Noble Dorid) might look bigger than a bread box compared to other nudibranchs. They average in size around two inches, but can get up to 8 inches long!
By comparison, this dorid, Okenia rosacea (Hopkin’s Rose,) is only about a half an inch long and could fit between the rhinophores of the Noble Dorid. It’s papillae are very tall, and make it difficult to see it’s branchial plume. Both these dorids are found in Southern California.
Hermit crabs are a favorite for photographers. Their eyes are curious and expressive (for a crab). This one’s shell measures about 1 inch long.
This slipper lobster is roughly the size of a salad plate. It isn’t a tiny creature, but it is far smaller than a breadbox!
This Hippocampus bargibanti (Pygmy Seahorse) is one of the tiniest creatures in the sea, although this particular seahorse is one of the largest of the Pygmies. It can get up to 3/4 inch. They have amazing camouflage and are almost impossible to find on the sea fans they inhabit.