CHERRIE: ORNITHOLOGY OF THE ORINOCO REGION. I39 
spots and blotches of various shades of brown, from rufous to chest- 
nut : in one, nearly uniformly distributed, in the other thickest about 
the larjjer end. They are ovate in form and measure 28.25x20; 
28.75 -^ 19 '• 26.5 X ig and 27.75 ^ 20 mm. respectively. The eggs of 
P. albiventcr cannot be distinguished from those of its congener 
F. gymnophthalmus. 
Planesticcs Eumigatus ( Lichtenstein). 
Turdits fninii/atiis Licht., Verz. Doubl. 1823. p. 38; Berlepsch & Hartert 
P- .1 
The marked variation in color presented by a series of these 
thrushes from various localities throughout northern South America 
has been already commented on by ornithologists. The series before 
the writer is entirely too small and too meagre in localities repre- 
sented, to give any satisfactory idea of the geographical distribution 
of the three or four races into which it seems the species might be 
separable. Indeed, the distribution indicated by the material at hand 
is most perplexing. 
The writer has met with this thrush on the upper Orinoco, above 
the falls of Atures and those of Maipures, and in Trinidad. At 
the present time he has for comparison, specimens from Trinidad, 
British Guiana, El Pilar on the north coast of Venezuela, Nericagua 
on the upper Orinoco, Cayenne, and three points in Brazil, viz., Santarem, 
Diamantina and Maranhao. 
From the upper Orinoco region (Nericagua) only one bird is 
available for comparison. It is a female, taken April 23rd, and agrees 
almost exactly in color with an example from Santarem, Brazil (with- 
out sex or other data), but is decidedly smaller, the wing measuring 
only 105 mm. and the tail 95, while in the Brazilian specimen the wing 
measures 118 mm. and the tail no mm. 
The specimens from Trinidad are uniformly much lighter in 
,color than those from the other localities in the series before me, 
being a raw umber, with a pronounced olive wash and with a narrow 
russet edging to the outer edges of the quills, greater, and middle 
wing coverts. The Nericagua and Santarem birds are dark mummy 
brown above with a wash of vandyke, while the tips and outer edges 
of greater and middle coverts are cinnamon-rufous in the Nericagua 
example (a characteristic which mav be due to immaturity). The 
