Distribution and morphological variation of colonies of the bryozoan Pentapora fascialis (Bryozoa : Cheilostomata) along the western coast of Italy, Lombardi, Chiara, Cocito Silvia, Occhipinti-Ambrogi A., and Porter J. S. , JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM, Volume 88, Number 4, p.711-717, (2008)