^°lw^^] Recetit Literature. 305 



8. Asio magellantcus virgiHiauus (Gmelin). "Southern 'Canada and 

 eastern United States, west to Ontario, Wisconsin, Iowa, and eastern 

 Texas; accidental in Ireland." 



9. Asio magella7iicus algistus Oberholser. "Northwest coast region of 



Alaska." 



10. Asio tnagellanicus occidentalis (Stone). "Western United States, 

 from Minnesota and Kansas to Nevada, southeastern Oregon, Utah, 

 and Montana; south in winter to Iowa." 



11. Asio tnagellafticus tvapacuthti (Gmelin). "Northern Canada, from 

 Hudson Bay to the Valley of the Mackenzie River; south in winter 

 to the northern United States, from Idaho to Wisconsin." — J. A. A. 



Snodgrass and Heller on the ' Birds of the Galapagos Archipelago.' ^ 

 — This new revision of the birds of the Galapagos Archipelago recognizes 

 80 species and 30 additional subspecies. The synonymy, and the biblio- 

 graphical refei-ences that refer especially to the Galapagos, are given for 

 each, with its range, and especially its distribution and manner of occur- 

 rence in the Archipelago, together with biographical observations, often 

 extended, notes on the color of the naked parts, etc., and many tables of 

 measurements of large series of specimens. The authors follow rather 

 closely the nomenclature of Rothschild and Hartert, using trinomials for 

 insular forms when their variations overlap, "regardless of the possi- 

 bilitj- or impossibility of their interbreeding." The Geospiza group, 

 sometimes separated into four or more genera, is treated as a genus with 

 three subgenera. Six different phases of plumage are described, and 

 denominated ' stages,' and numbered I to VI; three of these are found to 

 coincide with the differences in the form of the bill, on which the sub- 

 generic groups have been principally based, while the other three are 

 immature phases characterizing young birds, shared unequally by the 

 members of the several subgenera. The discussion of this group, with 

 the voluminous but important notes on habits, song, etc., occupies 75 

 pages, or nearly one half of the entire memoir. 



Although Snodgrass and Heller have described (in previous papers) a 

 number of new species and subspecies from the Galapagos, the number 

 of forms (no) now recognized exceeds by two only the number given by 

 Rothschild and Hartert in 1899,^ quite a number of the 14 added by these 

 authors being here reduced to synonyms. 



'Papers from the Hopkins-Stanford Galapagos Expedition, 1898-1899. 

 XVI. Birds. By Robert Evans Snodgrass and Edmund Heller. Proc. 

 Washington Acad. Sci., Vol. V, pp. 231-372. Jan. 28, 1904. 



^ For a notice of Rothschild and Hartert's ' Review of the Ornithology of 

 the Galapagos Islands,' see Auk, XVII, July, 1900, pp. 300-303; for a notice 

 of Ridgway's ' Birds of the Galapagos Archipelago ' see ibid., XIV, July, 

 1897, pp. 329, 330. 



