I have now completed the examination of the rest of the Polyzoa in the collection forwarded to me by Prof. Haswell. Unfortunately they are mostly in such a fragmentary and imperfect condition that it is impossible to satisfactorily determine the greater portion of them specifically, but I have been enabled to add to the list of known species in the collection the following: Amphiblestrum annulus, Manzoni, sp.; Hornera airensis, Mapl.; Liripora lineata, McGil.; Fasciculipora gracilis, McGil; Heteropora pisiformis, McGil. Etc.