Plate 18. 
Fig3. 1-3. Schizopodrella doverensis Ulrich and Bailer, 1904. (p. 107.) 
1. A Pliocene example, X 20, referred to this species. 
2. Ancestrular portion of a zoariuin, X 20, showing irregular arrangement of zooecia. 
Pliocene (Caloosahatchee marl): Shell Creek, De Soto County, Florida. 
3. The incrusting type of the species, X 20. 
Miocene (Choptank formation): Dover Bridge, Maryland. 
Fig. 4. Schizoporella lalisinuita Ulrich and Bassler, 1904. (p. 93.) 
Photograph of the original incrusting type, X 20. 
Miocene (Choptank formation): Jones Wharf, Maryland. 
Figs. 5, 6. Gemelliporella asper, new species, (p. 110). 
5. The incrusting zoarium, X 20, with oriented zooecia and showing both the large and small 
avicularia. 
Miocene (Choctawhatchee marl): Jackson Bluff, Oclclocknee River, 25 miles southwest of Tal¬ 
lahassee, Florida. 
6. A Pliocene example, X20, illustrating nonoriented zooecia, several of which preserve the 
ovicell. 
Pliocene (Waccamaw marl): Waccamaw River, Horry County, South Carolina. 
Figs. 7-9. Hippoporina (?) vestita, new species, (p. 130.) 
7. View of the incrusting zoarium, X 20, with the zooecia more distinctly marked than usual. 
8. An example, X 20, showing at the base the calcareous pellicle covering the frontal and at the 
top, monstrous zooecia. All of the zooecia have indistinct outlines. 
9. An example, X 20, preserving some ovicelled zooecia. 
Miocene (Choctawhatchee marl): Jackson Bluff, Ocklocknee River, 25 miles southwest of Tal- 
lahasse, Florida. 
Fig. 10. Hippoporina gibbosa, new species, (p. 130.) 
The incrusting type specimen, X 20, showing the smooth frontal with its gibbosity, the shape of 
the aperture and the widely open ovicell. 
Miocene (Duplin marl): Wilmington, North Carolina. 
Fig. 11. Lepralia montifera Ulrich and Bassler, 1904. (p. 134.) 
Photograph of the original type, X 20. 
Miocene (St. Mary’s formation): St. Marys River, Maryland. 
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