INDEX. 1 6 1 



PAGE 



Syringopora nobilis 85 



" tabulata 84 



" verticillata 80 



" tenella 81 



Thecostegites ■ 7g, 84 



Thecia 66 



" major 67 



" minor 68 



' ' ramosa .^ 69 



Trachypora 61 



Vermipora 69 



" Niagarensis 70 



" fasciculata 70 



Vesicularia - 135 



major 135 



" minor '. 136 



" variolosa 136 



Zaphrentis , , . . . 140 



" exigua 150 



" conigera .' 149 



•' gregaria 149 



" nodulosa 148 



' ' gigantea . 146 



' ' prolifica 147 



" compressa 151 



" ungula 151 



" spinulosa 152 



' ' umbonata 146 



■' Stockesii * 145 



Zoantharia rugosa 92 



