NORTH AMERICAN EARLY TERTIARY BRYOZOA. 



Buffonella (Schisoporella) simplex D'Orbigny, 1833. 

 Buffonella (Schisoporella) rimosa Jullien, 1888. 

 Buffonella (Schisoporella) marsupifera Busk, 1884. 

 Buffonella (Schizoporella) rumida Kincks, 1881. 

 Buffonella (Schisoporella) levata Hincks, 1882. 

 Buffonella (Schizoporella) laevigata Waters, 1889. 

 Buffonella (Schisoporella) edwardsiana D'Orbigny, 1839. 

 Buffonella (Escharella) stylifera Levinsen, 1886. 

 BujfoneUa (Schisoporella) hexagona Nordgaard, 1905. 



849 



B *85 



Cx 85 



A "50 



FIG. 104. Genus Buffonella Jullien, 1888. 



A, B. Buffonella ridleyi MacGillivray, 1882. A. Zooecia, X 50. (After Jullier, 1888.) 

 B. Operculum, X 85. (After Waters, 1904.) 



C. Buffonella hexagona Nordgaard, 1905. Operculum, X 85. (After Nordgaard.) 



D, E. Buffonella stylifera Levinsen, 1886. D. Aperture of zooecium. E. Operculum. 

 (After Levinsen, 1886.) 



The known fossil species of the genus are : 



Buffonella (Lepralia) incisa Eeuss, 1874. 



Buffonella (Lepralia) pauper Keuss, 1874. 



Buffonella (Schisoporella) nuda Canu, 1908. 



Buffonella (Schizoporella) crenulata MacGillivray, 1904. 



Buffonella (Schizoporella) arachnoides MacGillivray. 1882. 



Buffonella (Schisoporella) clerici Neviani, 1895. 



Buffonella (Schizoporella) carinata Hennig, 1892. 



BUFFONELLA HEXAGONALIS, new species. 



Plate 46, fig. 1. 



Description. The zoarium is formed of many superposed lamellae and incrusts 

 stones. The zooecia are distinct, elongated, hexagonal, separated by a prominent 



