Plate VI. 



Figs. 1,L'. Mcinbren'hccium pamcapitaluni, new species, (p. 3G.) 



1. The incrustiii.E; typo specimen X 20, with ancestrular, normal, oviceUeil and regenerated 

 zooecia. 



Miocene (T'hoctawhalchee marl r. .Tacksoti BliilT, Ocklocknee Ri\'er, 25 miles .louthwest of Talla- 

 hassee. Florida. 



2. An Early Miocene specimen, >' 20, referred to this species. 

 Lower Miocene (Bowden marl): Bowden, .Jamaica. 



Fig. 3. (.'aUopora parvirostris. nev.- species, (p. 41.) 



A portion of the tyjie .specimen, X 20, with normal and ovicelled zooecia, exhiliiting the small, 

 triangular, suberect avicnlariiiin. 



Miocene (Calvert formation): 1 mile south of Parkers Creek, Calvert County, Maryland. 

 Figs. 4-d. Ahlcrhm ceslicella. new species, (p. 39.) 



4. Ancestrular region of the incrusting zoarium. X 20. showing regenerated, calcified and ovi- 

 celled zooecia. The ovicells have a prominent collar. 



5. Another view of the same zoarium, X 20, exhibitine regenerated zooecia and numerous salient 

 spines on the zooecial walls. 



Miocene (Du]din niarli: Natural Well. 2 miles southwest Magnolia. lUiplin County, North 

 Carolina. 

 Fig. 6. Ogivalina parvula T'lrich and Bassler, 1904. (p. 37.) 



The incrusting tj-pe specimen X 20. A small cryptocyst and often a small convex g\-mnocyst 

 are present. 



Miocene (Calvert formation): Reeds, Maryland. 

 Fig. 7. }fctnbraniporidra parva, new species, (p. 39.) 



The imperfect typo sijecimen. X 20. with two o\'icel!ed zooecia. 



Miocene (Choctawhatchce marl): .Jackson Bluff, Ocklocknee River, 25 miles southwest of Talla- 

 hassee, Florida. 

 Figs, 8. 9. Daknria torqiiata Il'Orbigny. lS39. (p. 98.) 



R. Portion of the incrusting zoarium. X 20, with ovicelled zooecia. 



9. Normal zooecia, X 20, illustrating the characteristic broad sinus. 



Miocene (Yorktown formation): 3 miles southwest of Petersburg, Virginia. 

 Fig. 10. Ilippodiplosla higibbera, new species, (p. 131.) 



The incrusting zoarium. X 20, showing the aperture deformed by two frontal gil)l:>osities. 



Miocene (Yorktown formation): 3 miles southwest of Peterslnirg. Virginia. 

 I^iG. 11. CuUopora lancenlata, new species, (p. 41.) 



The incrusting tyjie specimen, X 20, showing ovicelled and normal zooecia, diatellae and the 

 large lanceolate avicularia. 



Miocene (Yorktown formation): 3 miles southwest of Petersburg, Virginia. 

 Fig. 12. Callopora dumerilu Savigny-Audouin, 1826. (See also pi. 1, fig. 2; pi. 2, fig. 23.) (p. 40.) 



Photograph of a specimen, X 20, referred to this species. 



Lower Miocene (Chipola marli: Chipola River. <'alhoun County, PTorida, 



256 



