128 Recently published Ornithological Works. 



of its eggs. Of R. macrorhyncha, Herr v. Nathusius does 

 not seem to have examined any examples. 



The conclusion arrived at by the author, after full dis- 

 cussion of the various specimens, is that eggs of R. darwini 

 are at once distinguishable from those of R. americana 

 (Argentine examples being taken as typical of this form) by 

 the considerably larger diameter of the mamillae. 



Herr v. Nathusius is of opinion that, judging from the 

 difference in the diameter of the mamillae, the Rhea of 

 Paraguay may be specifically distinct from that of Buenos 

 Ayres. 



As regards the occurrence of Rhea darwini in Northern 

 Chili, Herr v. Nathusius has omitted to notice that this 

 extension of its range has been already ascertained and more 

 than once commented upon by Sclater ^. 



17. Oberholser on two new American Woodpeckers. 



[Descriptions of two new Subspecies of the Downy Woodpecker, 

 Dryobates jmbescens. By Harry C. Oberholser. Proc. U.S. Nat. Mus. 

 xviii. p. 547.] 



Mr. Oberholser proposes to separate from the Downy 

 Woodpecker of North America two geographical subspecies 

 — Dryobates pubescens meridionalis (Sw.), from the Gulf 

 States, and D. p. nelsoni, from Alaska and Northern China. 



18. Reed's Catalogue of Chilian Birds. 



[Catalogo de las Aves Ohilenas, por Edwyn C. Reed. Santiago, 1896. 

 (Publicado en los ' Anales de la Universidad,' tomo xciii.)] 



We are glad to see that Mr. Reed has returned to the 

 study of his country's birds. His list is far superior to 

 anything else that has appeared in Chili on this subject. 

 Mr. Reed has judiciously followed as nearly as may be 

 James's ' New List of Chilian Birds ' of 1892, which was 

 carefully corrected and revised by Sclater before publication. 

 He has added much to the value of his list by the short notes 

 on distribution and occurrence attached to each species. 



* See P. Z. S. 1890, p. 412, and 1891, p. 137. 



