TABLE OF CO.NTEiNTS. 



Page. 



Introducticin 1 



Catalogue of papers of American Later Tertiary and Quaternary Brj-ozoa 2 



Lists of North American Later Tertiary and Quatemarj' Bryozoan faunas 4 



Systematic descriptions 15 



Order Ctenostomata Busk 15 



Family Terebriporidae Busk, 1839 15 



Genus Terebripora D'Orbigny, 1839 15 



Genus Spathipora Fischer, 1866 16 



Order Cheilostomata Busk 17 



Suborder Anasca Levinsen 17 



Division L Malacostega LeWnsen 1" 



Family Electrinidae D'Orbigny, 1851 17 



Genus Electra Lamouroux, 1816 17 



Genus Pyripora D'Orbigny, 1852 19 



Genus Mystriopora Lang. 1915 19 



Genus Membranipora Blainville. 1834 20 



Group Membraniporae Canu and Bassler, 1917 24 



Section I. No ovicell 24 



Genus Membraniporina Le\-insen. 1909 24 



Genus Conopeum Norman. 1903 26 



Genus Cupuladria Canu and Bassler, 1919 28 



Genus Acanthodesia Canu and Bassler, 1919 30 



Section IL Membraniporae with endozooecial o\dcell 35 



Genus Vibracellina Canu and Bassler, 1917 35 



Genus Membrendoecium Canu and Bassler, 1917 36 



Genus Ogivalina Canu and Bassler, 1917 37 



Genus nincksina Norman, 1903 ' 38 



Section TIL 0\-icell hyperstomial, always closed by the operculum 39 



Genus Membraniporidra Canu and Bassler, 1917 39 



Section IV. 0\'icell never closed by the operculum 39 



Genus Alderina Norman, 1903 39 . 



Genus Callopora, Gray, 1818 40 



Genus Amphiblestrum Gray, 1848 44 



Genus Ramphonotus Norman, 189-! ■, . . . 46 



Genus Cauloramphua Norman, 1903 48 



Family Aeteidae Smitt. 1867 49 



Genus .Vetea Lamouroux. 1812 49 



Family Chaperiidae Jullien. 1888 49 



Genus Chaperia Jullien. 1881 49 



Family Farciminariidae Busk, 1852 55 



Genus Nellia Busk, 1852 , 55 



Family Opesiulidae Jullien, 1888 56 



Genus Floridina Jullien, 1881 56 



Genus Veluraella Canu and Bassler, 1917 58 



Genus Micropora Gray, 1848 58 



Genus Selenaria Busk, 1854 59 



III 



