HANGS ANO IM.NAHI): SOMK ( UriK AI. NoTKS ON HIKDS. J/ 



)ii()ituiii, tliciT is ;iii(»tlitr spcciiiuii triiiii ( liilc in the l-ni'n'siiayr Col- 

 lection, M. C Z. 77.;il7, Lufr. coll. 4,()()(). These three speeiniens 

 are very much smaller than any of a lar^e series from the Falkland 

 Islands in M. C". Z., from which we consider them suhspecifically dis- 

 tinct. We therefore re\i\e the n;inie iinuitilis for the small continen- 

 tal form. 



Sclater (Cat. birds Brit, mus., 1888, 14, p. 55) <loul)tfully places 

 M. alhimcntum Lafr. in the synonymy of M. citicrra Philippi and 

 Landheck. The type is a sjiecimen without the lirown spot on the 

 chin, and we identify it with certainty as MuJicimxiroln iiKtcloridna 

 mcntalis tl'Orb. and Lafr. of which it is presumably a female, as Lafres- 

 naye himself at first thought. 



In designating our specimen of M. mentali.'i tl'Orb. and Lafr. as a 

 cotype, we offer the following explanation: — 



The types of the species originally described in joint authorship by 

 d'Orbigny and Lafrcsnaye are generally supposed to be in the Paris 

 Museum, and undoubtedly the specimens there have a just claim 

 to that distinction. We know, however, that many of these species 

 were represented by several indi^■iduals, and in such cases Lafrcsnaye 

 obtained from d'Orbigny a specimen, or several specimens, for him- 

 self. It is even possible that the descriptions were made from Lafres- 

 naye's specimens, since it is known that he did most of the work in 

 connection with the preparation of the manuscripts of papers published 

 in joint authorship with d'Orbigny. 



L'nder the circimistances, and in absence of positive proof to the 

 contrary, we think the specimens in the Lafrcsnaye collections should 

 be considered cotypes whenever there is sufficient int'onnation to 

 indicate that they were of d'Orbigny's collecting. Evidence of this 

 nature is to be found on the old labels in the form of a statement of 

 the locality, exactly as originally pul)lished. often accompanied by 

 d'Orbigny's name. In our proposed account of the Lafrcsnaye Col- 

 lection we shall enter such specimens as cotypes followed by a cjuery 

 to indicate the doubtful status of the specimen, in the manner indi- 

 cated above. In all instances we shall give an exact copy of the 

 labels, so that ornithologists may decide for themselves upon the 

 merits of each individual case. 



MrsciSAXicoLA ALBiLORA ALBiLORA Lafrcsuaye. 



Muscisaxicola albilora Lafr., Rev. et mag. zool., 1855, p. (50 (type- 

 locahty not stated — we select Vicinity of Santiago, Chile). 



