Various red abalone shells (Haliotis rufescens) taken from Chiloé, X Region, Chile, were examined revealing an enormous amount of vermiform organisms identified as phoronides (Phylum Phoronida) belonging to the genus Phoronis. These individuals have an extended vermiform body not divided into segments, but its upper extreme shows a crown of tentacles shaped in a circular ring (that is the reason why they could be confused with Sabellidae polychaetes, although they do not have segmented body and lack bristles). These are found in the interior of very fragile quitinous tubes. Only Phoronis ovalis has been recorded in Chile found perforating the shell of Chilean abalone, Concholepas concholepas, in samples from the coastal rocks of Mehuin, Valdivia (Arenas 1972).