124 CONTRIBUTIONS TO CANADIAN PALEONTOLOGY. 



Sjoirifera (Amboccelia) umbonata, Conrad. 

 Spirifera (Marti nia) fimbriata, Conrad. 



" Maia. (=Atliyris Maia, Billings.) 



Cyrtina Hamiltonensis, Hall. 

 Spii-igera spiriferoides, Baton. 



Meristella nasuta. (=Atr5'pa nasuta, Conrad, and Atbyris Clara, Billings.) 

 Haskinsii, Hall. 



" unisulcata, Conrad. 



" scitula, Hall. 



" rostrata, Hall. 



Retzia Chloe. (=Atliyris Chloe, Billings.) 

 Eetzia (Trematospira) nobilis. Hall. , 



Atry|ja reticularis, Linnajus. 

 Ehynchonella Tethys, Billings. 



Ehynchonella (Leiorhynchus) Laura, Billings. (=L. multicosta, Hall.) 

 Ehynchonella (Leiorhynchus) Huronensis, Nicholson. 

 Ehynchonella (Stenoschisma) Billingsi, Hall. (=R. Thalia, Billings.) 



MOLLUSCA. 

 LAMELLIBRANCHIATA. 



Pterinea flabellum, Conrad. 

 Grammysia arcuata ? Conrad, var. 



GASTEROPODA. 



Turbo Shumardi, de Verneuil. 

 Platyceras carinatum, Hall. 



" dumosum, Conrad and var. rarispinum, Hall. 



erectum? Hall. 



" quinquesinuatuni, Ulrich. 



" (Orthonychia) conicum, Hall. 



Platyostoma lineatum, Conrad. 



" plicatum, Whiteaves. 



Pteropoda. 

 Tentaculites attenuatus, Hall. 



