xii LIST OF ILLUSTRATIONS. 



27. Syringolites Huronensis, Hinde. (Original), *79 



28. Columnaria calicina, Nich. (Original), . T 9 8 



29. (?) Halli, Nich. (After Billings), 201 



30. Sections of Syringopora reticulata, Goldf. (Original), 211 



31. CladocJwnus Michelini, Edw. and H.; and species of Aulopora. 



(Original), . 22 



32. Monilopora crassa, M'Coy, sp. (Original), 224 



33. Tetradium minus, Safford. (Original), . 2 33 



34. Heteropora Neozelanica, Busk (Original); and H. subreticulata. 



(After Reuss), .... 257 



35. Sections of Monticulipora and Chcztetes. (Original), 274 



36. Monticulipora moniliformis, Nich. (Original), . 279 



37. Section of Monticulipora moniliformis, Nich. (Original), . 279 



38. Sections of Stenopora Tasmaniensis, Lonsd. (Original), . 281 



39. Sections of Fistulipom minor, M'Coy. (Original), . 307 



40. Fistulipora incrassata, Nich. (Original), . 309 



41. Sections of Fistulipora proporoides, Nich. (Original), . 311 



42. Monticulipora (Diplotrypa} Whiteavesii, Nich. (Original), 317 



43. Prasopora Gray/%, Nich. and Eth., jun. (Original), 325 



44. Labechia conferta, Edw. and H. (Original), . . 33 1 



PLATES. 



I. Favosites Gothlandica, Lam.; and F. Forbesi, Edw. and H. 

 II. ,, Forbesi, Edw. and H.; and its varieties. 



III. Forbesi, Edw. and H. ; F. hemispherica, Yand. and Shtim.; and 



F. Bowerbanki, Edw. and H. 



IV. ,, clausus, Rom. ; and species of Pachypora. 

 V. Species of Pachypora, Striatopora, and Trachypora. 



VI. Vermipora, Alveolites, and Ccenites. 



VII. Ccenites, Columnopora, and Laceripora. 



VIII. Pleurodictyum, Chonostegites, and Lyopora. 



IX. Stenopora, Lyopora, Nyctopora, and Billingsia. 



X. ,, Columnaria, Syringopora, and Haly sites. 



XL Halysites, Thecia, Propora, Lyellia, and Plasmopora. 



XII. Plasmopora, Heliolites, Pinacopora, and Chcetetes. 



XIII. ,, Monticulipora (Heterotrypa', Diplotrypa, and Monotrypa}. 



XIV. Monticulipora (Diplotrypa and Monotrypa), and Constellaria. 

 XV. ,, Dekayia, Fistulipora, and Labechia. 



