Recently published Ornithological Works. 719 



We venture also to suggest that when such newly-coined 

 generic names as Crocomorphus (p. 604) andMyospiza (p. 073) 

 are introduced some clue should be given as to their place 

 of origin. 



Mr. Hellmayr shews clearly that the Caprimulgus hirun- 

 dinaceus of Spix is a true Caprimulgus allied to C. parvulus, 

 and not a Ckordeiles as supposed by Hartert (Cat. B. M. 

 xvi. p. 014). 



110. Hellmayr on little-known Neotropical Birds. 



[Critical Notes on the Types of little-known Species of Neotropical 

 Birds. Part I. By C. E. Hellmayr. Nov. Zool. xiii. pp. 305-352.] 



This is also a valuable contribution to our knowledge of 

 the Neotropical Orais. It is the result of a careful exami- 

 nation of the typical specimens of South-American birds in 

 the British Museum, which the author has made during 

 the past four years, while he has been greatly assisted 

 by the loan of typical specimens from other museums. We 

 believe Mr. Hellmayr to be a very accurate worker, and 

 that his identifications may, as a rule, be relied upon without 

 hesitation, although in some cases he states them, perhaps, 

 in a little too positive manner. Moreover, when the difficult 

 character of the groups of which he mostly treats is con- 

 sidered, and the advantages as to materials which he has 

 enjoyed, Mr. Hellmayr is, in our opinion, a little too severe 

 upon previous authors. It has been well said that " he 

 who does not make mistakes does not make anything/' 

 At the same time it is good that all mistakes should be 

 faithfully corrected. 



The results arrived at in this paper, though of much 

 importance, are mostly of a strictly technical character ; 

 and we need not do more than call general attention to 

 them. The following names appear to be now published for 

 the first time: — Myrmelustes exsul maculifcr (Panama), 

 Knipolegus sclateri (Rio Madeira), and Chloropipo holochlora 

 lit a (N.W. Ecuador). 



