57 



Polypi. 



Diplograptus amplexicaulis ? Hall. 

 Pala!0})hylluni divaricans, Nicholson. 

 Petraia Ottawaensis, Billings. 

 Protarea vetusta, Hall. 

 Streptelasma corniculum, Hall. 



Crinoidea. 



Afchajocrinus lacunosus, Billings. 

 " marginatus, Billings. 



*' microbasalis, Billings. 



" pyriformis, Billings. 



Calceocrinus articulosus, Billings sp. 



" intequalis, Billings sp. 



Cleiocvinus magnificus, Billings. 



'■ regius, Billings. 



Dendvocrinus gregarius, Billings. 

 " hurailis, Billings. 



*' proboscidiatus, Billings. 



" rusticiis, Billings. 



" similis, Billings. 



Glyptocrinus decadactjdus, Hall. 

 " parvus, Hall. 



" quinquepartitus, Billings. 



" ramulosLis, Billings. 



Heterocrinus Canadensis, Billings. 



" tenuis, Billings. 



Hybccrinus conicus, Billings. 

 " tumidus, Billings, 



lociinus subcrassus, ISleek and Wortlien. 

 Lecanocvinus elegans, Billings. 



" kevis, Billings. 



Palseocrinvis angulatus, Billings. 

 " pulcbelUis, Billings. 



" i-hombifeius, Billings. 



Porocrinus conicus, Billings. 

 Reteocvinus stellaris, Billings. 



Cystoidea. 



Araygdalocystites florealis, Billings. 



" '•' var. Levis, W. R. Billings. 



" radiatus, Billings. 



" tenuistriatus, Billings. 



Ateleocysftes Huxley i, Billings. 

 Comarocystites punctatus, Billings. 

 Glyptocystites multiporus, Billings. 

 Lichenocrinus crateriformis. Hall. 



