394 Annals of the Carnegie Museum. 



country, not even going into the hills to the west. It is partial to tracts 

 of dry, thorny scrub, giant cactus, and open plains, dotted with scat- 

 tering low trees. 



359. Mimus gilvus melanopterus Lawrence. 



Mimus gilvus columbianus (not of Cabanis) Bangs, Proc. New England Z06I. 

 Club, I, 1899, 80 (San Sebastian and El Mamon). 



Mr. Brown secured a series of fifteen specimens of a mockingbird 

 from San Sebastian (6,600 feet) and El Mamon (8,000 feet). This 

 series has been placed at our disposal by Mr. Bangs, but unfortunately 

 they are all in more or less worn plumage (July and August), and 

 some are in juvenal dress, so that they are unsatisfactory for compari- 

 son, but even at that it is clear that they cannot safely be referred to 

 columbianus, which is strictly a form of the low country. In fact 

 they agree much better with a series from Venezuela, for which we 

 accept the name melanopterus Lawrence, the type of which has been ex- 

 amined in this connection. This form differs from columbianus in its 

 rather larger sire, grayer under surface, and less extensively white 

 rectrices. In all probability M. g. tolimensis Ridgway {Smithsonian 

 Miscellaneous Collections, Quarterly Issue, XLVII, 1904, 113) is the 

 same, judging from the material examined. 



360. Donacobius atricapillus brachypterus von Madarasz. 

 Donacobius atricapillus (not Turdus atricapillus Linnaeus) Allen, Bull. Am. 



Mus. Nat. Hist., XIII, 1900, 180 (Cienaga). 

 Donacobius brachypterus von Madarasz, Orn. Monatsber., XXI, 1913, 22 



(Aracataca; orig. descr. ; type in coll. Budapest Mus.; crit.). 

 Donacobius atricapillus albovittatus (not of Lafresnaye and D'Orbigny} 



Chapman, Bull. Am. Mus. Nat. Hist., XXXVI, 1917, 531 (Cienaga; crit.). 



Thirty- four specimens : Fundaci6n, Trojas de Cataca, and Tucu- 

 rinca. 



The present series are virtual topotypes of the form recently de- 

 scribed by Dr. von Madarasz under the name brachypterus, the local- 

 ity Aracataca (misspelled by him "Aracatuca") lying between Fun- 

 dacion and Tucurinca. Dr. Chapman admits the validity of the form, 

 but adopts for it the earlier name D. albovittatus Lafresnaye and 

 D'Orbigny, on the ground that the type of the latter, as claimed by Mr. 

 Hellmayr {Novitates Zoologicce, XXI, 1914, 158), is a young example 

 of D. atricapillus. But we are in a position to show (and will do so 



