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and malar region is deep violet. The occiput and nape are uniform whitish blne. 
C. c. chrysops has the former only of that colour, which passes into bright violet on 
the hindneck. Theadult male shows the following dimensions : wing 167; tail 163; 
bill 263 mm.; whereas nine adult birds of C. c. chrysops measure: wing 150—160; 
tail 160—170 ; bill 29—33 mm.] 
85. Ochthornis littoralis (Pelz.). 
Elainea littoralis Pelzeln, Zur Orn. Bras. ii, pp. 108, 180 (1868.—Cachoeira de Guajara4guagu and 
Bananeira, on the Mamoré ; Borba, Rio Madeira). 
No. 806. d ad., Allianca, 29. xi. 1907.—Wing 74 ; tail (in moult); bill 13mm. 
No. 104. ¢ ad. (worn plumage), Calama, 25. vi. 1907.—Wing 69; tail 58 ; 
bill 12 mm. 
“Tris brown, feet and bill black.” 
Specimens from the Caura Valley in the Munich Museum differ by their more 
sandy (less greyish) back, darker pileam, and slightly more yellowish (less greyish) 
under parts, but others from the same region in the Tring Museum are scarcely 
distinguishable from the typical Madeira birds. 
In O. Littoralis there is a marked difference in size between the sexes, the males 
being considerably larger. 
Five adult males (Rio Madeira and Caura). Wing 73—75; tail 58—60} mm. 
Seven females “ a . ee » 66—70; ,, 54-58 ,, 
86. Fluvicola albiventer (Spix). 
Muscicapa albiventer Spix, Av. Bras. ii, p. 21. p), xxx. fig. 1 (1825.—“in campis Brasiliae” : 
part. ¢) 
No. 111. Juv. (not sexed), Calama, 26. vi. 1907. “Iris brown, feet and bill 
black.”— Wing 64; tail 47; bill 14 mm. 
Agrees with one of Spix’s typical specimens in the Munich Museum, but is 
rather more blackish above, and has brownish white apical margins to the greater 
upper wing-coverts. The scapulars are blackish brown like the back ; the ramp is 
crossed by a narrow white band ; the rectrices are uniform blackish without white 
apical edges, which are always well defined in the allied F. pica (Bodd.). 
F, albiventer has a wide range in Brazil, Argentine, etc. 
87. Knipolegus pusillus Scl. & Salvy. 
Cnipolegus pusillus Sclater & Salvin, Nomencl. Av. Neotrop, p. 158 (1873.—Amazonia inf., exact 
__ locality not known). 
No. 551. 3 ad., Jamarysinho, R. Machados, 14. ix. 1907. “Iris dark brown, 
feet black, bill plumbeous.”—Wing 59 ; tail 51; bill 12 mm. (Tring Museum.) 
- Agrees with an example from Perico, Upper Orinoco (Cherrie coll.), which [ 
had previously compared with the type in the British Museum. The small size and 
glossy black plumage together with the narrow, acuminate, three outer primaries 
distinguish this species among its congeners, It bears a striking likeness to 
NXenopipo atronitens, but on closer examination the two birds are seen to be quite 
distinct. K. pusillus has shorter wings, a much larger, differently coloured bill, 
numerous strong rictal bristles, ete. : 
The type, obtained by Wallace, remained unique until Cherrie obtained two 
