( 48 ) 



Barcellos ou the Bio Negro. In the British Jluseum there are skins from Pebas 

 (Hauxwell) aud Chyavetas Bartlett). 



/•;. albivertex Pelz. is, of course, totally different from E. a. parvirostris Pelz. 



29. Ramphotrigon raficauda (Spix). 

 Platyrhynchui ruficauda Spix. Av. Bras. ii. p. 9 tab. xi. fig. 1 (1825.— "insylvis fl. Amazonum"). 



No. 888. ? ad., Telle, 23. vi. 00. "Iris greyish brown, feet blackish brown, 

 bill black." 



This bird is topotypical. A series from the Canra valley does not differ in 

 any way. 



30. * Rhynchocyclus poliocephalus poliocephalus Tacz. A 



Rhynchocychis poliocephalus Taczanowski, Orn, Pirou ii. p. 285 (1884.— Nauta, N.E. Peru- type in 

 Museum Berlepsch examined). [Cfr. Hellmayr, Verhandl. Zool. Bot. Get. Wien, 1903, p. 207.] 



No. 800. ? ad., 11. vi. 06. "Iris whitish yellow, feet blue grey, bill black, 

 below pale grey." — Wing 55; tail 45; bill 12 mm. 



Agrees perfectly with two specimens from Eastern Peru, the underparts being 

 of a rather bright yellow, and the throat mainly yellowish. The back is a little 

 brighter green, aud the grey cap more mixed with green thau in ii!. p. sclateri. 



This form is new to the Brazilian fauna. 



31. Myiodynastes solitarius (Vieill.) 



Tyrannua solitarius Vieillot, Nouv. Did. xxxv. p. 88 (1819.— ex Azara no. 196.— Paraguay). 

 No. 833. S in moult, 15. vii. 06. " Iris brown, feet greyish black, bill black." 

 Identical with examples from Sonth Brazil aud Paraguay. 



32. Myiobius erythrurus fulvigularis Salv. & Godm. 



[Myiobius erythrurus Cabanis, Arch. Natitrg. 13. i. p. 249, pi. 5, fig. 1 (1847.— "Guiana, Cayenne ").] 

 Myiobius fiilvigularis Salvin & Godman, Biol. Cento. A met: ii. p. 58 (1889.— Santa Fe", Veragua). 



No. 750. S fere ad., 3. vi. 06. " Iris brown, feet brown, bill blackish brown." 



This bird agrees best with a S from Samiria, N.E. Peru. Both differ slightly 

 from a series of Costa Rica and Chiriqui by having the pileum and back of a rather 

 lighter olivaceous grey, and the lower parts a shade paler ochraceous. The forehead 

 is washed with buff, though less strongly than in true M. e. fulvigularis of Central 

 America. A Bogota skin and an adult bird from S. Mateo, North Bolivia, are 

 perfectly identical with those from the Amazons. 



Specimens from British Guiana, when compared with others from Costa Pica, 

 etc., look at first rather different, the forehead being pure olive grey like the crown, 

 the throat more whitish, and the rest of the nnder-snrface considerably paler 

 ochraceous. A series of skins from the Caura Valley, however, presents a large 

 amount of individual variation in the intensity of the lower parts, some being quite 

 as pale as those from British Guiana, while others are even darker than M. e. 

 fulvigularis of Central America. The same applies to the colour of the throat. 

 Norn- of the Canra specimens, however, shows auy buff tinge on the forehead. 



The specimen from Para, (cfr. Nov. Zool. xiii. p. 362) has the forehead slightly- 

 tinged with buff like those from the Amazons, but differs from all examples of 

 .1/ ('. erythrurus and M. e. fulvigularis by having the whole back strongly suffused 

 with cinnamon. Perhaps it represents a distinct form. 



