152 Recently published Ornithological Works. 



Five specimens of Phylloscopus borealis are registered as 

 having been obtained in these islands (Tooer and Maar) in 

 November and December 1899. 



12. Hartert on the Birds of the Rio de Oro. 



[List of Birds collected at Rio de Oro by Mr. F. W. Riggenbach. By 

 Krnst Hartert. Nov. Zool. x. p. 295 (1903).] 



The Rio de Oro, a so-called " Spanish Colony " on the 

 coast of North-west Africa between Morocco and Senegal, 

 has hitherto been, so far as we know, quite an unexplored 

 district as regards its birds. But Heir Riggenbach appears 

 to have visited it at the wrong time of year, and not to have 

 penetrated into the interior, so that, as Mr. Hartert well 

 observes, his collection of birds is poor and unsatisfactory. 

 It consists of examples of 18 speeies, which, so far as they 

 go, would shew that the Avifauna is " quite Palsearctic 

 and not tropical." All the species are European and Al- 

 gerian forms, such as Hypolais polyglotta, Saxicola leucura, 

 Otocorgs bilopha, Motacilla rati, Cypselus upas, and Upupa 

 cpops. It is possible, however, that a visit to the interior 

 of Rio de Oro in spring might lead to results of a more 

 interesting character. 



13. Hellmayr on new or little-known South-American 

 Birds. 



[Ueber ueue und wenig beknuute siidamerikanische Vogel. Von 0. 

 E. Hellmayr (Miinchen). Verb, zool.-bot. Gesellscb. Wieu, 1903, 

 p. 199.] 



Herr Hellmayr's studies on South-American birds are 

 based mainly on the unrivalled series obtained by Natterer, 

 now in the Vienna Museum, but he acknowledges much 

 assistance from specimens lent to him by several kind friends. 



Beginning with the Pipridae, the author describes a new 

 subspecies of Pipra isidorii from Northern Peru as P. isidorii 

 leucopygia, likewise a new species of the group of P. opalizans 

 as P. gracilis. The latter is based on a single female 

 specimen from Engenho de Gama, in Matto Grosso, obtained 

 by Natterer in 1826. He then proceeds to arrange the 



