Plate 31. 
Figs. 1-9. Metrarabdotos auriculatum, new species, (p. 164.) 
1. Two fragments of the narrow bilamellar zoarium, natural size. 
2. Young convex zooecia, X 20. Two zooecia bear the large supraoral avicularium. 
3. The usual aspect of the zooecial surface, X 20. The peristomice is deeply embedded. 
4. Much calcified, convex zooecia, X 20. 
5. Zoarial surface, X 20, showing two broken ovicells. 
6. Surface of a young zoarium, X 20. 
7. View of the interior of the zooecia, X 20, illustrating the areolar pores, and the subjacent 
olocyst. 
8. Longitudinal thin section, X 12. 
9. Transverse thin section, X 12, exhibiting the thick zooecial walls perforated by the areolar 
pores. 
Pliocene (Caloosahatchee marl): Shell Creek, De Soto County, and Monroe County (figs. 4-6), 
Florida. 
Figs. 10-11. Smittina maleposita, new species, (p. 144.) 
10. Surface of the incrusting zoarium, X 20, showing the characteristic poorly oriented zooecia. 
Pliocene (Caloosahatchee marl); Shell Creek, De Soto County, Florida. 
11. Zooecia, X 20, several of which bear the large, globular, finely perforated ovicell. 
Pleistocene: Yero, Florida. 
Fig. 12. Floridina parvicella, new species, (p. 57.) 
The incrusting type specimen, X 20. 
Pliocene (Waccamaw marl): Waccamaw River, Horry County, South Carolina. 
Figs. 13,14. Schizopodrella aculeata, new species, (p. 104.) 
13. The massive multiliamellar zoarium, natural size. 
14. Zooecia, X 20, showing the wide tremopores and the large, long, pointed avicularium. 
Pliocene (Waccamaw marl): Waccamaw River, Horry County, South Carolina. 
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