the Tubinares in the North Atlantic Islands. 439 



Tlie following members of the Order Tubinares come 

 under our notice in the present paper : — 



1. Thalassidroma pelagica {hmn.). The Storm-Petrel. 



2. Oceanodroma leucorhoa (Vieill.). Leach's Fork-tailed Petrel. 



3. Oceanodroma castro (Harcourt). The Madeiran Furk-tailed Petrel. 



4. Oceanites oceanicus (Kulil). Wilson's Petrel. 



5. I'eUigodroma marina hypolexica (Moquii^-Tandon). North Atlantic 



Frigate-Petrel. 



6. Puffinus grnv's (O'Reilly). Great Shearwater. 



7. Pujiims huhli flaoirostris (Gould). Yellow-billed Atlantic Shear- 



water. 



8. Pvjfinus kahli ediuardsi Oust. Cape Verde Islands' Shearwater. 



9. Puffinus jiuffinus puffinus (Briinn.). Manx Shearwater. 



10. Puffinus assimilis baroli Bonap. Atlantic Allied Shearwater. 



11. Puffinus Iherminieri boydi Mathews. Boyd Alexander's Shear- 



water. 



12. CEstrelata mollis fees Salvad. Fea's Soft-plumaged Petrel. 



13. Bidiveria huhoeri (Jard. & Selby). Bulwer's Petrel. 



14. Fulmarusi/lacialisf/lupischuStejnegev. Pacific Fulmar. 



These fourteen birds may be classed as follows : — 

 Numbers 3; 5^ 7, 8, 9, 10, 11, 12, and 13 are all regular 

 breeding- birds in one or more of the north Atlantic 

 Archipelagos. 



Number 1 has only been known to breed on one occasion, 

 and is best included with numbers 2, 4, and 6, which are 

 more or less rare visitors ; w^hile number 14 is founded on a 

 single record, and is unlikely to be again met with so far 

 from its natural habitat. 



Geographical Features. 

 Without exception, all the islands dealt with in this paper 

 are volcanic in origin, and in many instances are surrounded. 

 by a great depth of water, particularly is this the case with the 

 Azores. There is not space here to give an account of the 

 physical features of the different groups, but each merits 

 close attention. According to Sir Charles Lyell, the 

 Madeira and Canary Groups date from the Miocene period, 

 which is an important factor to remember when dealing 

 with the present distribution of the Ornis, 



