PLATE CXXX. 
PAGE 
Figs. 1, 2. DiSTEPHANUS cRtTx ( Bhrenberg ) 448 
1. Pileated piece of skeleton. Cambridge artesian well (192 to 395 
feet). X 375 
2. Larger pileated piece of skeleton. Same locality. x 375 
Pig. 3. DicTYOcHA FIBULA ( ? ) Ehrenberg 449 
3. Pileated piece of skeleton. Cambridge artesian well (192-395 feet). 
X 375 
Fig. 4. LiTHOCAMPE MAEYLANDICA n. Sp 450 
4. Type specimen. Lyons Creek. x.187% 
Fig. 5. EUCYRTIDIUM CALVERTEXSE n. Sp 450 
5. Type specimen. Lyons Creek. x 1S7V2 
Figs. 6, 7. Stichocaps.\ macropora Vinassa 451 
6. A specimen from Richmond, Virginia. 
7. Another specimen. Same locality. 
Fig. 8. Anthocyrtium doronicum Haeckel 451 
8. A specimen from Popes Creek. x 240 
Fig. 9. Lithasteriscus radtatus Ehrenberg 453 
9. A specimen from Crisfield well (790 feet). x 225 
Fig. 10. Sponqasteriscus marylandicus n. sp 453 
10. View of type specimen. x 90 
Figs. 11-13. Dictyocoryne profunda Ehrenberg 454 
11. A specimen from Lyons Creek. x 90 
12. Another specimen. Same locality. x 90 
13. Another specimen. Same locality. x 90 
Fig. 14. RiiOPALonicTYiiM MARYLAxuiruM n. sp 455 
14. View of type specimen. Popes Creek. x 90 
Fig. 15. Rhopalodictyum calvertense n. sp 455 
15. View of type specimen. Lyons Creek. x 90 
Pig. 16. PoRODiscus coNCENTRicus (Ehrenberg) 455 
16. A specimen from Plum Point. x 162% 
Pig. 17. Phacooi.scus calvertanus n. sp 456 
17. A specimen from Lyons Creek. x 131 
Pig. 18. Cannartidum sp 456 
18. A specimen from Popes Creek. X112M! 
Pig. 19. Cannartiscus amphicylindricus Haeckel 457 
19. A specimen from Richmond, Virginia. x 195 
Pig. 20. Cannartiscus MARYLANnicus n. sp 457 
20. View of type specimen. Plum Point. x 187% 
Fig. 21. AcANTnosPH.ERA PARVULA Vinassa 458 
21. A specimen from Popes Creek. x 195 
Pig. 22. Hexalonche microsph-eka Vinassa 458 
22. A specimen from Plum Point. x 131 
Fig. 23. Hexastylus simplex Vinassa 459 
23. A specimen from Lyons Creek. x 150 
Figs. 24, 25. Cenosph.era porosissima Vinassa 459 
24. A specimen from Lyons Creek. x 131 
25. Another specimen. Plum Point. X162 Vz 
