twenhofel: expedition to the Baltic provinces. 313 



each region make their first appearance in significant numbers in the 

 underlying formation. Considering that the Borkhohn fauna has 

 not been carefully studied for correlation with North America, the 

 common occurrence of such a great numljer of species is rather remark- 

 ■ able. If only the Bryozoa be considered it is found that eight of the 

 fourteen Borkholm species are also found in the Anticosti section, six 

 in the Ellis Bay and two in the Charleton. It is therefore probable 

 that when other phyla have been subjected to as careful comparative 

 study as have the Bryozoa, that a greater number of species will be 

 found common to the two regions. Since not so close faunal contact 

 or general expression is shown with any other Anticosti formation, it is 

 held as extremely probable that the Borkholm represents the whole or 

 a part of the Ellis Bay formation. The Lyckholm, hence, represents 

 some part of the Charleton formation. Large Subulites and Hormo- 

 tomas are found in the upper part of this formation in association with 

 Halysites and members of theHeliolitidae. There are, however, no 

 Maclureas, Common or similar species are as follows: — 



1. Calapoecia canadensis. 



2. Halysites catenularia. 



3. Paleofavosites asper. 



4. Streptelasma rusticum Billings (S. corniculum is said to occur in 

 Esthonia). 



5. Zaphrentis affinis. 



6. Corynotrypa dissimilis. 



7. Nematopora lineata. 



8. Protocrisina exigua, 



9. Sceptroporafacula (Borkholm). 



10. Clitambonites verneuili diversus. 



11. Plectambonites sericeus. 



12. Pseudolingula elegantula. 



13. Byssonychia sp. nov. 



14. Sinuites cf. bilobatus. 



15. Calymene meeki. 



16. Proetus alaricus Billings. 



Formerlv I was inclined to believe that the Lvckholm and Borkholm 

 found their equivalents in the lower parts of the Ellis Bay and the 

 English Head and Charleton formations.^ This view is now modified 

 -as stated above and it is believed that the English Head and perhaps 



I Twenhofel. Bull. 3, Victoria memorial museum, 1914, p. 19. 



