•" INDEX TO PLATES. 



ZOANTHARIA RUGOSA. 



CYATHOPHYLLID^. 



ACEOPHYLLUM Plates. 



clarki. 97, 102 



ellipticum , . . . . 94 



oneidaense 94 



Amplexus 



shumardi 132, 138 



AULACOPHYLLUM 



conigerum 97, 102 



insigne 95 



mutabile 96 



jiarvum 95, 101 



sulcatum , 95 



unguloideum 95 



Blothrophyllum 



approxiniatum 99 



cinctutum 99, 100, 101 



corium 81, 101 



decorticatum 98, 99 



liratum 97, 102 



louisvillcnse 99, 100, 101 



niagarense 99 



parvulum 100 



sessile 99, 100 



zaphrcntiforme 102 



Calceola 



profeus 101, 131 



