Note the lack of spines and avicularia. Drawing by J. Winston, courtesy of the American museum of Natural History. Used with permission. Zooids are large and measure an average of 0.97 X 0.28 mm.
Zooids alternate biserially on branches, with individual zooids tapering proximally.
A membrane covers the frontal surface. B. neritina differs from other species in this genus in that it possesses no avicularia and no spines. Rather, its zooids have sharp points in the distal corners. The lophophore measures an average of 0.764 mm in diameter and bears 23 tentacles. B. neritina is a highly cosmopolitan and abundant species throughout warm water areas of the world and is considered a troubling fouling organism.