Pyura haustor, subtidal from Sares Head. Scale is cm. Animal appears partly encrusted, and the siphons are not fully extended. (Photo by: Dave Cowles July 2005)
In this underwater photo of Cnemidocarpa finmarkiensis near Northwest Island by Kirt Onthank (Feb 2006), the siphons are open and partly extended. The animal above is the sea cucumber Psolus chitonoides
Cosmopolitan organism found worldwide. Individual zooids are hermaphroditic; they do not self fertilize. Non-feeding 'tadpole' larvae settle to found new colonies. The larvae have the characteristics of a vertebrate embryo making them relatives of ours. Field of view 15 mm.