

Raymond : Gastropoda of the Chazy Formation. 217 



Euconia amphitrite Ulrich and Scofield, 1897, Paleontology of Min- 

 nesota, Vol. Ill, part 2, p. 954. 



This species was described by Billings from shells obtained at the 

 Mingan Islands from the " Chazy or Black River." No similar speci- 

 mens have been found in the Chazy of the Champlain or Ottawa Val- 

 leys, but there are four similar species in the Beekmantown, one from 

 the Mingan Islands, one from Newfoundland, and two from Fort 

 Cassin, Vermont. It is very possible that Euconia amphitrite is also 

 from the Beekmantown. 



Murchisonia? hermione Billings. 



Murchisonia hermione Billings, 1865, Paleozoic Fossils of Canada, 

 Vol. I, p. 33, figs. 34, 35, 35#. 

 From the same locality and formation as Euconia amphitrite. 



Plethospira hyale (Billings). 

 Murchisonia hyale Billings, 1865, Paleozoic Fossils of Canada, Vol. I, 



P- 33- 



Plethospira hyale Ulrich and Scofield, 1897, Paleontology of Minne- 

 sota, Vol. Ill, part 2, p. 1009. 

 This shell was described from one specimen found at Phillipsburgh, 



Canada, " in beds holding fossils approaching in aspect to those of the 



Chazy or perhaps Black River Limestone." 



Tryblidium eubule (Billings). 



Metoptoma eubule Billings, 1865, Paleozoic Fossils of Canada, Vol. I, 



p. 38. 

 Tryblidium eubule Whiteaves, 1884, Paleozoic Fossils of Canada, Vol. 



Ill, p. 30. 



This species also is from Phillipsburgh, probably from the same beds 

 as Plethospira hyale. 



Platyostoma auriforme (Hall). 



Capulus awiformis Hall, 1847, Paleontology of New York, Vol. I, p. 



31, PL 6, figs. 6a, 6b. 

 Stomatia auriformis Emmons, 1855, American Geology, p. 157. 



This species was described by Hall as coming from the Chazy Lime- 

 stone at Galway, Saratoga County, New York. As the Chazy forma- 

 tion does not extend as far south as Galway, it is probable that this is 



