About Halocynthia aurantium (Pallas, 1787)
Halocynthia aurantium, commonly known as the sea peach, is a tunicate species that belongs to the order Stolidobranchia. Sea peaches are commonly found in the northern Pacific Ocean, with a range that extends from the Arctic Sea south to Puget Sound. They are most abundant in the Bering Sea, at depths between 40 and 100 metres. The sea peach typically has a barrel shape, and can grow up to 18 centimetres in height. Its body attaches directly to the underlying substrate. It is usually red or orange, and has a smooth or wrinkled tunic. Two siphons are located at the top of its body. Crabs and sea stars prey on the sea peach.
