Plate 31. 



Figs. 1-9. Metrarahdotos 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 a\-icularium. 



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 o\icells. 



6. Surface of a young zoarium, X 20. 



7. View of the interior of the zooecia, X 20, illustrating tlie areolar pores, and the subjacent 

 olocyst. 



8. Longitudinal tliin 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 i figs. 4-6 1, 

 Florida. 

 Figs. 10-11. Smittina mdleposita, 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: Vero, 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 iiruUata, new species, (p. 104.) 



13. The massive multiliamellar ::.oarium, natural size. 



14. Zooecia, X 20, showing the wide tremopores and the large, long, pointed avicularium. 

 Pliocene (Waccamaw marli: Waccamaw River, Horry County, South Carolina. 



275 



