Crinou 



Paleeocriiius angulatus, Biilnigs. 



" i)ulcliellu8, Billing8. 



" rhonibiferus, Billings. 



Porocrinus conicus, Billings. 

 Reteoci-inus stellaris, Billings. 



Cystoidea. 



Amygdalocystites florealis, Billings. 



*' " var. Itevis, W. R. Billings, 



" radiatus, Billings. 



, •* tenuistriatus, Billings. 



Ateleocyst'ted Huxley i, Billings. 

 Comarocystites punctatus, Billings. 

 Glyptocystites multiporus, Billings, 

 liichenoci'iiius crateriforinis, Hall. 

 Pleurocystites elegans, Billings. 

 " filitextus, Billings. 



" robustus, Billings. 



" squamosus, Billings. 



ASTBROIDEA. 



Agelacrinites Billingsi, Chapman, 

 ** Dicksoni, Billings. 



Cyclocystoides Halli, Billings. 

 Edrioaster Bigsbyi, Billings. 

 Palasterina stellata, Billings. 

 Petraster rigidus, Billings. , 



Stenastor pulchellus, Billings, 



•' Salteri, Billings. 

 Iseniaster cylindricus, Billings. 



POLYZOA, 



Amplexopora discoidea, James sp. 

 Arthroclema pulchellum, Billings. 

 Batostoma Ottawaense, Foord. 

 Constellaria antheloidea, Hall. 



" florida var. plana, Ulrich. 



Diplotrypa regularis, Foord. 



" Whiieavesii, Nicholson. 



Heterotrypa solitaria, o'lrich. ' * 



Homotrypa similis, Foord. 

 Monotrypella Trentonensis, Nicholson. 

 Monticulipora Billiiigsi, Foord. 

 " parasitica, Ulrich. 



" Westoni, Foord. 



