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Styela plicata (Lesueur, 1823)
SUMMARY
This species is a simple, solitary ascidian, with a tough outer covering or tunic. The body is ovoid, without a stalk, and measures 5-7 cm in total length. The oral and atrial siphons are positioned anteriorly, and the short tips are ringed in alternating light and dark stripes. When closed, the tips of the siphons come together to form a puckered cross. The tunic is opaque, thick, and leathery, with distinct warts and longitudinal pleats. Overall colour ranges from tannish to grey.