Species of South- American Birds. 269 



3, Tyranneutes brachyurus, sp. nov. 

 Olivaceus, alis caudaque fuscis olivaceo limbatis; crista 

 verticis brevi, celata, flavaj subtus dilutior, medialiter 

 flavicans, subalaribus ventre et crisso pallide limonaceis ; 

 rostri maxilla cornea, mandibula ad basin albicante ; 

 pedibus fuscis : long, tota 2*7, alae 2*0, caudae O'Q. 

 Hab. Guiana Britannica {WJiitely). 

 Mus. S.-G. et P. L. S. 



Mr. Whitely has sent several skins of tliis little Tyrant in 

 his collections from Bartica Grove (Sept. 1879 and February 

 1880). It is quite unknown to us^ and we are constrained 

 to refer it to a new generic section. 



The feathers on the vertical line are yellow at their bases ; 

 but this colour is scarcely apparent unless the feathers are 

 disturbed. The short tail is slightly rounded. 



-' 4. Myiarchus apicalis, sp. nov. • 



Obscure olivaceus ; alis nigris, secundariis extus flavido lim- 

 batis, primariorum marginibus externis (in quibusdam 

 exemplis) anguste rufescentibus ; subtus ad medium 

 pectus pallide cinereus ; abdomine et subalaribus sul- 

 phureo-flavis ; caudse nigricantis rectricis externae po- 

 gonio externo et ceterarum apicibus latis flavido- albi- 

 cantibus : long, tota 7'0, alse 3'5, caudse 3*3. 

 Hab. Columbia interior. 

 Mus. P. L. S. et S.-G. 



Obs. Similis M. tyrannulo, sed rectricum apicibus late 

 albidis distinguendus. 



We are sorry to be obliged to add to the difficult series of 

 this genus, but cannot avoid recognizing the claims of this 

 bird to an independent status. We characterize it under the 

 term by which it has been designated in Sclater^s collection 

 since 1870. Four examples of it are now before us (all of 

 the peculiar Bogota make) ; and we have seen others. 



5. Myrmotherula gutturalis, sp. nov. 

 Supra pallide brunuea; alis intus nigris, extus dorso con- 

 coloribus ; harum tectricibus maculis rotundis apica- 

 libus albis ornatis ; subtus cinerea, gutture nigro, albo 

 striato ; lateribus et crisso rufescenti perfusis ; subala- 

 ribus et remigum marginibus iuteruis pallide fulvis ; 



