5B Mr. P. L. Sclater on the genus Muscisaxicola. 



its occurrence near Mendoza, on the eastern side of the Andes ; 

 and in the Cordilleras of Chili it appears to be found in many 

 localities. 



4. Muscisaxicola mentalis, Lafr. & D^Orb. ; Philippi & 

 Landb. /. c, p. 85. 



My specimens of this species were obtained by Mr. Bridges, 

 probably in Chili, where, from Messrs. Philippi and Landbeck^s 

 observations, it appears to be very abundant. It is found also 

 in Bolivia (D'Orb.), Peru (Tsch.), and Patagonia (D'Orb.), ap- 

 parently descending into the lowlands in winter, and passing 

 the summer among the higher Andes. 



I have one example of M.madoviana from the Falkland Islands. 

 This form may be entitled to specific separation on account of 

 its larger size, though otherwise hardly different. I measure 



as follows : — 



Long. tota. 

 M. macloviana ....72. 



M. mentalis, a 6*0 . 



„ b 6-2 . 



5. Muscisaxicola bubricapilla, Philippi & Landb., sp. 

 nov., I. c. p. 93. 



Undoubtedly a good species, I think, judging from the single 

 specimen obtained from Dr. Leybold. Inhabits the Cordilleras 

 of the Chilian provinces of Colchagua and Santiago. 



6. Muscisaxicola rufivertex, Lafr. & D^Orb. ; Philippi & 

 Landb. /. c. p. 95. 



My Bolivian examples of this species agree with the Chilian 

 skins received from Dr. Leybold. 



7. Muscisaxicola flavivertex, Philippi & Landb. /. c. p. 98, 

 is certainly M. flavinucha, Lafr., described and figured Rev. Zool. 

 1855, p. 59. I have a single specimen in my collection, said to 

 be from Chili. 



8. Muscisaxicola nigrifrons, Philippi & Landb. /. c. p. 101, 

 is a good species. To me it seems most nearly allied to M. al- 

 bifrons, but differs in its black forehead, lighter upper surface, 

 and longer bill. I suspect, however, this is Burmeister's Pty- 



