ART. 14 CHEILOSTOMATOUS BRYOZOA — CANU AND BASSLER 35 



Pachytheca Canu, 1913. Family Acroporidae. 



Palmicellaria Alder, 1864. Family Smittinidae. 



Pancheilopora Lang, 1916. Family Andrioporidae. Cretaceous cribrimorph. 



Parmularia Maplestone, 1910. Family Parmulariidae. 



Pasythea Lamouroux, 1812. Family Liriozoidae. 



ParohinuUtes D'Orbigny, 1852. Bry. Cret., p. 358. Only a growth form of 



Lunularia. 

 Pelmatopora Lang, 1916. Family Pelmatoporidae. Cretaceous cribrimorph. 

 Peneclausa Jullien, 1888. Synonym of Micropora. 

 Pergensina Jullien, 1888. Synonym of Thairopora. 

 Perigastrella Canu and Bassler, 1917. Family Phylactellidae. 

 Periporosella Canu and Bassler, 1917. Family Alderinidae. 

 Peristomella Levinsen, 1902. Family Escharellidae. 



Periteichisma Koschinsky, 1885. Palaeontographica, vol. 32, p. 25. First 

 species, Vincularia geometrica Reuss, 1869. Second species, Cellepora de- 

 planata Reuss, 1847. Fossils incompletely studied. 

 Petalostegus Levinsen, 1909. Family Bicellariellidae. 

 PctraUa MacGillivray, 1887. Family Petraliidae. 

 Petraliella new genus. Family Petraliidae. 

 Phidolopora Gabb and Horn, 1862. Family Reteporidae. 

 Phoceana Jullien, 1903. Family Smittinidae. 

 Phonicosia Jullien, 1881. Family Escharellidae. 

 Phractopora Lang, 1916. Preoccupied. See Phractoporella. 

 Phractoporella Lang, 1917. Family Pelmatoporidae. Cretaceous cribrimorph. 

 Phrynopora Lang, 1916. Family Pelmatoporidae. Cretaceous cribrimorph. 

 Phylactella Hincks, 1880. Family Phylactellidae. 

 Pithodella Marss>on, 1887. Pal. Abh., vol. 4, p. 53. Genotype, P. cincta Marsson, 



1887, Idem, p. 53, pi. 5, fig. 7. Family Alderinidae? Cretaceous. 

 Plagiopora MacGillivray, 1895. Journal Royal Society Victoria, vol. 4, p. 79. 



Perhaps Reteporidae with Bulbipora and Caheroides. Fossil. 

 Plagiosmittia Canu and Bassler, 1917. Family Smittinidae. 

 Planicellaria D'Orbigny, 1851. Bry. Cret., p. 36. Type species, Planicellaria 

 oculata D'Orbigny, 1851, Idem, p. 37, pi. 653, figs. 1-5. Cretaceous. Can 

 not be classified at present. 

 Platyglena Marsson, 1887. Pal. Abh., vol. 4, p. 89. Genotype, P. clava Mars- 

 son, Idem. p. 89, pi. 9. fig. 3. Family Platyglenidae Marsson, 1887. Cre- 

 taceous. 

 Pleuroschiziella Canu. 1918. Costulae. Fossil. 

 Pleurotoichus Levinsen, 1909. Family Euthyridae. 

 PUcopora MacGillivray, 1895. Fossil. Type incomplete. 

 PlwphJoea Gabb and Horn. 1862. Genotype, Flustra sagcna Morton, 1834. 



Family Costulae. Referred to Andrioporidae by Lang. 

 Poecilopora MacGillivray, 1886. Family Lekythoporidae. 

 Poikilla Jullien, 1903. No species cited. According to description might be 



Schisellozoon. 

 Pollaploecium Maplestone, 1909. Family Hippopodinidae. 



Polyceplialopora Lang, 1916. Family Pelmatoporidae. Cretaceous cribri- 

 morph. 

 Polyceratopora Lang, 1916. Family Andrioporidae. Cretaceous cribrimorph. 

 Polyeschara Reuss, 1867. Not defined. Genotype, P. confusa Reuss, 1867. 



Lower Oligocene of Germany. 

 Porella Gray, 1848. Family Smittinidae. 



