bangs \\D pbnard: notes on uaebican birds. .'{87 



Elellmayr {Joe. cit., p. **>*»<> ) , in Ids "Revision der Spix'schen typen," 

 doubtfully referred Pachyrhynehiu variegatus Spix to Pachyrhyiujhus 

 polychopterus (Vieillot), remarking that it mighl equally well repre- 

 sent the young of P. niger. After careful examination of Spue's plate, 

 which certainly represents a young male of the polychopterus group, 

 we bave decided thai it does not represent true polychopterus of South 

 Brazil. The wing measurement of approximately 75 mm., taken from 

 the plate, is much too small and more in agreement with that of the 

 males of either the I'pper Amazonian or eastern Brazilian forms. 



Sj>i\ failed to state where he obtained the specimen, hut it is reason- 

 able to assume that he procured the young bird at the same place as 

 the adult male figured by him in plate 45 under the name P. niger, 

 the type-locality of which has been designated by Berlepsch and 

 Ilartert {loo. cit.) as " Amazonas prope Fonteboa." 



We would have preferred to place the name variegatus in the syn- 

 onymy of some one of the forms of polychopterus, rather than use it to 

 replace the time-honored name of niger, but in our judgment the evi- 

 dence will not permit of such a course. 



4. Pachyrhamphus polychopterus tristis (Kaup). 



tLanius atricapiUvs Menem, Av. Icon, descr., 1784, p. 26 (Surinam). Cf. 



Berlepsch, Nov. zool., 1908, 15, p. 140. 

 Psaris marginatus tristis Kaup, Proc. Zool. soc. London, 1851, p. 48 (No type- 

 locality stated — we designate Cayenne). Type. — 'Originally in collection 



of Lord Derby. 

 Pachyrhamphus niger tobagensis Cory, Field mus. nat. hist. Publ. 190, prn. 



ser., 1916, 1, no. 10, p. 343 (Tobago Island, West Indies). Type.— Field 



Museum of Natural History. 

 Pachyrhamphus tnacconnelli Chubb, Bull. Brit. orn. club, 1920, 40, p. 73 



(Bonasika River, British Guiana). Type — McConnell collection. 

 Pachyrhamphus oRriUrris Chubb, Bull. Brit. orn. club, 1920, 40, p. 73 (San 



Estaban, Venezuela). Type. — British Museum, Sclater collection. 



Sthspecific characters. — Similar to Pachyrhamphus polychopterus varie- 

 gatus Spix) of Upper Amazon (if at all distinguishable), and of about the same 

 Base, but under parts slightly paler, not so intensely black (See remarks below 

 on individual variation in this form). 



Mkasurements. — Male (fifty-five specimens) — wing, 71.0-77.5 

 7 is); tail, 52.5-60.5 (55.6); tarsus, 17.2-19.0 (18.3); exposed oil- 

 men, 12.0-14.0 (12.8). 



Female (tbirty-one specimens) — wing, 08.0-73.5 (71.1); tail, 



