October io, 1902 Vol. Ill, pp. 91-92 



PROCEEDINGS 



OF THE 



NEW ENGLAND ZOOLOGICAL CLUB 



DESCRIPTION OF A NEW THRUSH FROM CHIRIQUI. 

 BY OUTRAM BANGS. 



When I wrote my last paper on the birds Mr. W. W. Brown, Jr., 

 collected in Chiriqui, 1 I referred the thrush of the Merula tristis 

 series to Merula dagnce (Berlepsch), calling it Merula leucauchen 

 dagnce. I never felt sure of this identification, having been unable 

 to examine specimens of the Colombian bird. I therefore sent 

 some skins of the Chiriqui form to Mr. C. E. Hellmayr, who very 

 kindly compared them with authentic examples of M. dagnce and 

 wrote me as follows : — 



"The true Turdus dagnce Berl. ex S. W. Colombia and N. Ecua- 

 dor (Cachavi, S. Savier, and Ventana) differs at once from the 

 Chiriqui bird, so named in your paper, in its bistre — or mummy 

 brown — (Ridgway, Nomenclature of Colors, PI. 3, figs. 6 and 10) 

 upper surface, and light sepia brown breast and sides. Moreover, 

 the bill in my specimens, taken in the same months (March and 

 April) as those of Brown, is wholly black, and wing and tail are 

 much shorter (ten specimens measured: ala, 103-106 ; c, 75-85 

 mm.). The much darker colors stamp it as at least a very well 

 marked subspecies of T. leucauchen. The Chiriqui birds (three 

 specimens examined), however, are much more like typical leucau- 



1 Proc. New England Zool. Club, Vol. Ill, pp. 15-70, Jan. 30, 1902. 



