60 
Mr. Charles Chubb on the 
CoLUMBA PALLIDICRISSA, Sp. n. 
Like C. rujina , this bird has no distinct subterminal blackish 
shade on the tail such as is seen in C. sylvestris, although there 
is a slight dusky appearance before the pale end of the feathers. 
It differs from C. rujina in its much paler under tail-coverts, 
these being white fundamentally, with a slight tinge of pearly 
grey. The characters seem fairly constant throughout the 
series of skins in the British Museum. 
This species inhabits Central America from British 
Honduras to Panama. Type, $, Costa Rica (J. Carmiol: 
Mus. Salvin-Godman). 
The four allied species may be diagnosed as follows : — 
a. Cheeks and ear-coverts ashy. 
a'. Subterminal shade before the light ashy tips of the 
tail-feathers distinctly blackish ; under tail-coverts 
slaty grey. sylvestris. 
V . Subterminal shade before the paler ends of the tail- 
feathers dusky blackish or dull ashy ; under tail- 
coverts pale ashy grey . rujina. 
c'. Scarcely any sub-terminal shade before the paler 
ends of the tail-feathers ; under tail-coverts whitish 
with a slight wash of pearly grey . pallidicrissa. 
b. Cheeks and ear-coverts vinous ; under tail-coverts of a 
dark lead-colour, darker than the abdomen; tail- 
feathers black with no subterminal band . cenops. 
7. Zenaida auriculata. 
Paloma parda manchada Azara, Apunt. iii. p. 17. no. 
cccxxii. (1805) ; Vieill. N. Diet. d’Hist. Nat. xxvi. p. 351 
(1818). 
Columba maculata Vieill. (nee Gm.) Enc. Meth. i. p. 376 
(1820), ex Azara. 
Zenaida aurita Hartl. Ind. Azara, p. 20. no. 322 (1847). 
Zenaida maculata (Vieill.), Berlepsch, J. f. O. 1887, 
p. 34 (Pilcomayo). 
Zenaida auriculata (Des Murs), Salvad. Cat. B. Brit. 
Mus. xxi. p. 384 (1893) ; Ihering, Revista Mus. Paulista, 
vi. p. 341. 
Zenaida virgata Bertoni, Aves Nuev. Paraguay, p. 24 
(1901). 
