Plate 29. 
Figs. 1-3. Electra monostachys Busk, 1854. (p. 17.) 
1. An expanded zoarium, X 20. 
Pleistocene: Wailes Bluff, near Cornfield Harbor, St. Marys County, Maryland. 
2. Unilinear series of zooecia, X 20, with zooecia somewhat larger than usual. 
Pleistocene: Santa Barbara, California. 
3. A flabelliform zoarium, X 20. 
Pliocene (Waccamaw marl): Waccamaw River, Horry County, South Carolina. 
Fig. 4. Membranipora lacroixii Audouin, 1826. (p. 22.) 
The incrusting zoarium, X 20, showing the finely striated mural rims and the small tubercle at 
each interzooecial angle. 
Pliocene (Waccamaw marl): Waccamaw River, Horry County, South Carolina. 
Figs. 5, 6. Hemiseptella planulata, new species, (p. 74.) 
5. Portion of the incrusting zoarium, X 20, somewhat worn but showing the flat cryptocyst and 
the tubercles at the interzooecial angles. 
6. A better preserved example, X 20, with the spinous processes visible. 
Pliocene (Waccamaw marl): Waccamaw River, Horry County, South Carolina. 
Fig. 7. Puellina crassilabiata, new species, (p. 91.) 
The incrusting zoarium, X 20, showing the thick transverse lip along the edge of the apertura. 
Pliocene (Waccamaw marl): Waccamaw River, Horry County, South Carolina. 
Fig. 8. Hemiseptella granulosa, new species, (p. 74.) 
The unilamellar zoarium, X 20, exhibiting the characteristic irregular opesial proximal border 
with spinous processes and the granulose mural rim. 
Miocene: Charleston, South Carolina. 
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