BIRDS OF NORTH AND MIDDLE AMERICA. 



795 



with dull olive-green or grayish olive, the middle and greater coverts 

 tipped with pale yellow or yellowish white (forming two distinct 

 bands), the secondaries edged (except basally) with the same, the 

 primaries narrowly edged with light olive; an indistinct superciliary 

 streak o"f pale gray (grayish white anteriorly) ; a narrow loral streak 

 of dusky; suborbital and auricular regions pale gray or grayish white, 

 usually more or less tinged with pale j'ellow, fading gradually into 

 grayish white (usually more or less tinged with pale yellow) on chin 

 and throat; chest light yellowish olive, fading into olive-yellow on 

 breast and sides, this into light yellow (between straw and sulphur) on 

 abdomen, anal region, and under tail-coverts; axillars and under w^ing- 

 coverts light yellow (between straw and sulphur); inner webs of 

 remiges broadly edged with primrose yellow or yellowish white; bill 

 brownish black or dusky, the mandible slight h" more brownish 

 basally; legs and feet grayish dusky (bluish gray in life?). 



Adult male.— J jength (skins), 94-103 (97); wing, 47.5-52 (49.8); 

 tail, 39-41 (40.2); exposed culmen, 7.5-8 (7.7); tarsus, 12.5-13.5 (13); 

 middle toe, 7-8 (7.3).« 



Adult female. —Ijength. (skins), 93-101 (96); wing, 47.5-50 (49); tail, 

 39-40.5 (39.7); exposed culmen, 7.5-8 (7.7); tarsus, 12-13 (12.13); 

 middle toe, 7." 



<^ Three specimens. 



Locality. 



One adult male ( T. elatus datus) from Cayenne 



One adult male from Colombia (Bonda, Santa Marta) 



Two adult males ('' Tyrannulus reguloides panamensis") 

 from Panama 



One adult female from Colombia (Bonda) 



Two adult females ( T. r. panamensis) from Panama. 



SEX UNKNOWN. 



Four adults from Colombia (Bonda and Bogota) 



One adult (type of T. reguloides) from Diamantina, Brazil.. 



41.4 

 36 



Middle 

 toe. 



I am unable to distinguish Panama specimens from the type of T. rcgxtloides (from 

 Diamantina, Lower Amazon) as to coloration, Colombian specimens being, so far as 

 I am able to see, precisely similar. It is true the Panama 1)irds are larger than the 

 type of T. reguloides: but if size alone is to be made a criterion the Colombian speci- 

 mens must be separated, for they are still larger. On the whole, therefore, it seems 

 best, at least until a very much better series of specimens can be studied, to consider 

 all, except the decidedly darker and easily distinguished Cayenne bird, as represent- 

 ing a single form, which varies locally in dimensions. I would not be surprised if a 

 satisfactory series from Cayenne should show that there is in reality no occasion for 

 subdividing the species at all, though the sinsfle Cayenne specimen examined by me 

 is certainly very different in coloration from any other specimen I have seen. 



