Interstitial bryozoans

50 p. : ill. ; 26 cm.Includes bibliographical references (p. 46-50)."A unique fauna of interstitial bryozoans has been found encrusting sand substrata on a high-energy shoal off the Atlantic coast of Florida. This fauna includes juveniles of two species of free-living cupuladriids, as well as nine new species (one new genus) apparently adapted to interstitial conditions and characterized by small size, simplified colony structure, and very early reporduction. Other species known from larger substrata were also found encrusting interstitial sand and shell grains at Capron Shoal. The 'interstitial refuge' may be importnat in explaining the broad species distributions of encrusting bryozoans along mostly sandy continental shelves"--P. [1]