Plate 1!I. 



Figs. 1-9. GemcUiponlla vorax, new species, (p. 111.) 



1. Ancestrular portion of the incrusting zoarium X 20. The ancestrula is covered by the pleu- 

 rocyst of the adjacent zooecia. 



2. Zooecia, X 20, with orbicular avicularia. The areolar pores and granular pleurocyst are 

 evident. 



3. A zoarium, X 20, with indistinct zooecia and orbicular avicularia. 

 Pliocene (Waccamaw marl): Waccamaw River, Hoixy County, South Carolina. 



4. Zooecia, X 20, with large spatulate avicularia. The areolae are limited by short costules. 

 •5. Zooecia, X 20, with large areolar jjores and the granulated pleurocyst shown. 



6. Portion of a large zoarium, X -'0, with indistinct zooecia and orbicular a\icularia. 



7. Interior of the zooecia, X 20, showing the olocyst which supports the pleiu-ocyst. 

 Miocene (Duplin marl): Wilmington, North Carolina. 



8. Zooecia, X 20, with both large and small avicularia. 

 Pliocene ( Caloosahatchee marl): Monroe County, Florida. 



9. A zooecia of a young zoarium, X 20, with large spatulate avicularia. 

 Pliocene (Caloosahatchee marl): Shell Creek, De Soto County, Florida. 



Fig. 10. Ifi/ipoporella spinosa, new species, (p. 132.) 



The incrusting type specimen X 20, showing the smooth frontal with small lateral areolar pores 

 and the spines of the peristome. 



Miocene (Yorktown formation): Yorktown, Virginia. 

 Fig. 11. Ci/rlimpnraf man.ifieldi, new species, (p. 138.) 



Unovicelled zooecia of the incrusting zoarium, X 20, showing the suborbicular aperture and the 

 numerous large tremopores. 



Miocene lA'orktown formation): U miles southwest of Reeds l-'erry, \"irginia. 

 Figs. 12, 13. Microporella /issurifera, new s-pecies. (p. 121.) 



12. Unovicelled zooecia of the incrusting zoarium X 20, exhibiting the dietellae visible along 

 the edge of the zooecia. . . 



Miocene (Yorktown formation): Near Macedonia Church, Essex County, Virginia. 



13. Ovicelled zooecia, X 20. 



Miocene (Duplin marl): 10 miles south of Greenville, North Carolina. 

 Fig 14. llippoporella papulifera, new species, (p. 133.) 



Unovicelled zooecia of the incrusting zoarium, X 20, with distinct areolar pores and the charac- 

 teristic miicro. . ., , , rn- 11 



Miocene (Choctawhatchee marl): .Taekson Bluff, Ocklocknee River, 2o railes southwest of Talla- 

 hassee, Florida. 



263 



