golfo (11)
Purple tunicates | Tunicates are a subphylum of the phylum Chordata. They are marine filter feeders with a saclike morphology. In respiration and feeding they take in water through an incurrent siphon and expel the filtered water through an excurrent siphon. Most adult tunicates are sessile and attached to surfaces on the ocean floor. Various species are known as sea squirts or sea pork. [Wikipedia.]