NORTH AMERICAN EARLY TERTIARY BRYOZOA. 



599 



o 



M 



s. canallr 

 ulata Busk 



Q N 



Schlaiiopora tubcrosa Smitt 

 ?^>K 



S. anericana OsDurn 



P x75 



cervlcornlo Bask 



Q. 



Schlsnopora zanzlbarensls Paters 



Schlsmopora coronopus Wood 



FIG. 178. Genus Schismopora MacGillivray, 1SSS. 



A-F. Scliiftniojiorii iiumk'osa Busk, 1S54. A. Zooecia, X 30. B. Zooecium with ovicell, X 30. 

 C. Side outline of zooecium, X 30. D, E. Zoaria, natural size. (A-E after Hiucks, 1SSO.) 

 F. Operculum and avicularian mandible. (After Nordgaard, 1903, and Waters, 1SS5.) 



G-P. Opercula and avicularian mandibles. G. Schismopora ariciilaris Hiucks, 1SSO. (After 

 Waters, 1885, and Xordgaard, 1003.) H. S. tuberosa Smitt, 1S67. (After Nordgaard, 1903.) 

 I. S. xanzibarensis Waters, 1913. (After Waters, 1913.) J. S. nodulosa Loreuz. 1886. (After 

 Nordgaard, 1905, and Lorenz, 1886.) K. S. ventricosa Lorenz, 1886. (After Nordjiaard, T.nu. 

 and Lorenz, 1886.) L. S. coronoints Wood, 1850. (After Waters, 1885.) JI. S. caiialieulata 

 Busk, 1884. (After Osburn, 1912.) N. S. americnna Osburn, 1912. (JI, N after Osburn, 1912.) 

 O. S. dicliotoma Hincks, 1880. (After Nordgaard, 1903.) P. S. cerrii-ornis Busk, 1856. (After 

 Lorenz, 1886.) 



