190 BULLETIN 125, UNITED STATES NATIONAL MUSEUM. 
Genus SPHAEROPHORA Haswell, 1881. 
1881. Sphaerophora Haswell, On some Polyzoa from the Queensland coast, Proceedings Linnean 
Society New South Wales, vol. 5, p. 42. 
"With a pit towards which the zooecia are directed. Oral aperture (0.12 
mm.) with straight lower edge. Grows in all directions from the early zooecia. 
Pit central. Multilaminate.” (Waters.) 
Genotype.—Sphaerophora fossa Haswell, 1881. 
Range. —Miocene, Recent. 
Fig. 38.—Genus Stichoporina Stoliczka, 1861. 
A-G. Stichoporina rcussi Stoliczka, 1861. A. Meridian section. B. Exterior side showing the 
central pit. C. Interior side of the same zoarium. (A-C, after Stoliczka, 1861.) D, E. Exterior side 
of colonies in which the central pit is surrounded by small zooecia. F. Interior side of E. (D-F, after 
Reuss, 1867.) G. Form of the orifice, X 85. (After Waters, 1919.) 
Genus SCHIZORTHOSECOS Canu and Bassler, 1917. 
1917. Schizorthosecos Canu and Bassler, A synopsis of American Early Tertiary Cheilostome 
Bryozoa, Bull. 106 U. S. National Museum, p. 74. 
Completed definition. —With a pit closed externally by a perforated lamella. 
The zoarium is cupuliform. The apertura is oval with a rounded proximal rimule. 
There are numerous interzooecial zooeciules which may be transformed into avicu- 
laria, into radicular zooeciules or into compensation zooeciules. 
Genotype.—Schizorthosecos ( Orbitolites ) interstitia Lea, 1833. 
Range. —Claibornian, Jacksonian. 
Genus FEDORA Jullien, 1882. 
1882. Fedora Jullien, Dragages du Travailleur, Bulletin Societ6 Zoologique de France, vol. 7, p. 17. 
Without a pit. The ovicell is hyperstomial, not closed by the operculum, 
arranged between two zooecia. The apertura presents an anter and a poster sepa¬ 
rated by two salient cardelles; it is elongated on the ordinary zooecia but transverse 
and larger on the ovicelled zooecia. The frontal is a granular pleurocyst bordered 
