Raymond: The Cha2:v Formation and its Fauna. 559 



H. B. a. Impure gray limestone which weathers to a cream -colored, 

 soft, porous rock. 



RapJiistoma staiiiiiiciim a, JuitJiyiinis a/igc/iiii r, 



Afodio/opsis parviiiscula r, Jsochilina o/fawa r, 



Modiolopsis brcriiisciila c, Lcpcrdilia caiiaiicnsis c. 



H. B. b. Dark gray, pure limestone. 



Lepcrditia canadensis a, Ltpcrditia antygdaliiia c, 



Isoc/ii/ina oftaioa c, Lcpcrditclla labcllosa c, 



IsocJtilina a mi ana c, Priinitia /(\i^ani. 



H. B. c. Coarse-grained, faintly pink limestone. 



Pri)nitia logani, I^cpcrditia canadensis. 



7. Ueschenes. 



Moniiculipora sp., Caniandacitia orienfalis, 



Hebertella iniperafor, Flctirotcvnaria or Rapliistovia. 



Hebertclla borea/is, 



8. Aylmer, (Quebec. 



Caniarofa'c/iia cf. C. plena , Hebertella impcrator, 



Ca)naroicechia oricnlalis, Isotcliis canalis. 



g. Aylmer, Quebec. Lists identified by the writer from his own 

 collections and the collections made by T. W. E. Sowter. 

 A,. Sandstone almost at water's edge. Main Street, Alymer. 



Hebertella iniperator a, hotelus sp. ind. r, 



Camarofoechia ori entails c, Isochilina sp. r. 



Aj. Sandstone in the Canadian Pacific Railroad cutting east of Main 

 Street, Aylmer. 



Archinacella ? deforniata r, Scalites billingsi. 



Raphi stoma striatum , 



A3. Sandy shales along the trolley track, east of the preceding 

 locality and a few feet above it. 



Lingtila lyelli c, Hebertella sp. ind. r. 



A^. Light green, fine-grained clay shale, about 60 feet above Lake 

 Deschenes. 



