LIST 



ORGANIC REMAINS OF THE LEVIS FORMATION. 



(Except where otherwise indicated, all the species of graptolites, in the 

 following list, were described by Prof. J. Hall; all the others by 

 E. Billings.) 



PROTOZOA. 



Calathium pannosum. 

 Eospongia 



ZOOPHYTA. 



Stenopora fibrosa, Goldfuss. 



ECHINODERMATA. 



Palaeocystites tenuiradiatus? Hall. 



GRAPTOLITID^. 



Graptolithus abnormis. 



" alatus. 



" arcuatus. 



" bifidus. 



" Bigsbyi, 



" bryonoides. 



" constrictus. 



" crucifer. 



" denticulatus. 



" extensus. 



" extenuatus. 



" flexilis. 



" fruticosus. 



" Headi. 



" indentus. 



" Logani. 



" Logani, var. 



" nitidus. 



" octobrachiatus. 



" octonarius. 



" patulus. 



" pennatulus. 



" quadribrachiatus. 



" ramiilus. 



" Ricliardsoni. 



" rigidus. 



" similis. 



Diplograptus inutilis. 



" prisliniformis. 



Climacograptus antennarius. 

 Phyllograptus angustifolius. 



" Anna. 



" ilicifolius. 



" typus. 



Reteolites ensiformis. 

 Reteograptus tentaculatus. 

 Dendrograptus diffusus. 



" divergens. 



" erectus. 



" flexuosus. 



" fruticosus. 



" gracilis. 



" striatus. 



Callograptus elegans. 



" Salteri. 



Dictyonema irregularis. 

 " Murray i. 



" quadrangularis. 



Ptilograptus Geinitzianus. 



" plumosus. 



Thamnograptus Anna. 



Brachiopoda. 



Lingula Mantelli. 

 " Irene. 

 " Iris. 



" Quebecensis. 

 Obolella Ida. 



" desiderata. 

 Leptaena decipiens. 



" sordida. 

 Orthis geniniicula. 

 " Tritonia. 



" Ortlmnibonitcs, Pander. 

 " Euryone. 



