NORTH AMERICAN EARLY TERTIARY BRYOZOA. 



601 



Occurrence. Middle Jacksonian : One and one-half miles southeast of Georgia 

 Kaolin Company Mine, Twiggs County, Georgia (very rare). 

 Holotype.C&t. No. 64212, U.S.N.M. 



Genus OSTHIMOSIA Jullien, 1888. 

 1SS8. Osthimosia JUJ.LIEN, Mission scientific clu Cap Horn, vol. 6, Zoologie, p. 64. 



The ovicell is not perforated. The frontal is surrounded by areolae. 

 a pert lira bears a proximal rimnle. There are no spines. 



The 



Hx35 



Gx35 

 FIG. 179. Genus Osthimosia Jullien, 1888. 



A-F. Osthimosia eatonetusis Busk, 1884. A. Zooecia seen in profile. B. Frontal view of 

 zooeciurn. C, D. Two views of the interzooecial avicularium closed by the inaudible. E. Zoarium 

 natural size. F. Aperture, operculum, and avicularian mandible. (A-F after Busk, 1SS4.) 



G. Osthimosia otopcta Jullien, 1SS8. Zooecia, X 35. (After Jullien.) 



H, I. Osthimosia evexa Jullien, 1888. H. Zooecia, X 35. (After Jullien, 1SSS. ) I. Oper- 

 culum and avicularian mandible, X 85. (After Waters, 1904.) 



J. Ostliimosia clavata Waters, 1SS4. Operculum and avicularian mandibles, X 85. (After 

 Waters, 1904.) 



(jiiiottj/H. (txfh'niioxiii (('cll<'i>o>'t.t) cfitunfmsix Busk, 1884. Jack- 

 sonian Eecent. The genotype of Jullien was Osthimosia evcxa Jullien, 1888. 

 The recent species of this genus are : 

 Osthimosia, (CeUepora} catanensis Busk, 1884. 

 Osthimosia otopeta Jullien. 1888. 

 Osthimosia. clavata Waters. 1884. 

 Osthimosia (CeUepora) signata Busk, 1884. 

 Osthimosia > tfexa Jullien, 1888. 



