180 Proceedings of the Biological Society of Washington. 



Brazil). — Snethlage, Journ. f. Orn., LVI, 1908, 526, part (Arumatheua, 



Rio Tocantins; Brazil); LXI, 1913, 524, part (lower Amazon, Brazil; 



local range). — Snethlage, Bol. Mus. Goeldi, VIII, 1914, 413 part 



(localities in lower Amazonia, Brazil; descr.). 

 Mionedes oleagineus oleagineus Hellmayr, Nov. Zool., XIII, 1906, 360, 



part ([San Antonio do] Prata, Pard district, Brazil). — Hellmayr, Abhand. 



K. Bayerischen Akad. Wiss., Math.-phys. Kl., XXVI, 1912, 22, part 



(Peixe-Boi, Mexiana Island, Brazil), 89 (localities in Pard district), 106, 



119 (Mexiana Island). 



Type, No. 51,396, Collection Carnegie Museum, adult male; Buena- 

 vista, Santa Cruz de la Sierra, Bolivia, June 21, 1915; Jos6 Steinbach. 



Subspecific characters. — Similar to Pipromorpha macconnelli macconnelli, 

 but under parts brighter, more rufescent, the abdomen buffy light orange 

 yellow, brightening into warm orange buff in the crissum. 



Measurements.— Male: wing, 64-69 (66.3); tail, 45-52 (48.5); bill, 11-12.5 

 (11.5); tarsus, 15-17 (15.6). Female: wing, 59-62 (60.5); tail, 42-46 

 (44.5); bill, 9.5-11.5 (10.8); tarsus, 14-16.5 (15). 



Range. — Valley of the Lower Amazon, west and south to central Bolivia, 

 but exact limits of range unknown. 



Remarks. — This form also differs from typical macconnelli in its richer 

 coloration, but the variation is in a different direction from that it takes in 

 roraimoe, as above indicated. Individual variation is also in evidence, 

 some specimens being obviously darker green above (or even with a brown- 

 ish tinge), and duller below than others from the same locality, the latter 

 appearing to be in fresher plumage. Bolivian skins are slightly paler and 

 more uniform below, but after careful examination of the series as a whole 

 we are satisfied that no formal separation between Bolivian and lower 

 Amazonian specimens is admissible. 



Authors have uniformly failed to discriminate this form from P. oleaginea 

 chloronota, the two species occurring together throughout the range of the 

 present bird, apparently equally common. In a series of forty-three 

 specimens of Pipromorpha from various localities in lower Amazonia, for- 

 warded for study by the Gceldi Museum, there are twenty-five examples of 

 P. oleaginea chloronota and eighteen of P. macconnelli amazona, and the series 

 from this region in the Carnegie Museum collected by Mr. Samuel M. 

 Klages divide up in a very similar ratio. Both forms are represented in the 

 specimens from San Antonio do Prata in the Tring Museum, as we are 

 informed by Dr. Hartert, but without such further information it is of 

 course impossible to place with any certainty many of the published records 

 from this general region, or to define the range of the present form with pre- 

 cision. 



Specimens examined. — Brazil: Benevides, 9; Colonia do Mojuy, 1; Villa 

 Braga, 12; Miritituba, 3; Aveiros, 2; Cameta. Rio Tocantins, 2; San 

 Antonio do Prata, 2; Ananindeua, 1; Providencia, 1; Our^m, 1; Peixe-Boi, 

 2 ; Santa Helena, Rio Jamauchim, 1 ; Conceigao, 2 ; Arumatheua, 2. Bolivia : 

 Buenavista, 4; Rio Surutu, 1; Cerro Hosane, 1. Total, 47. 



