FAMILY TYRANNIDAE 573 



tree standing at the edge of forest. The two eggs in this set, in which 

 incubation had begun, had chestnut spots of sHghtly larger size 

 scattered over the larger end, as in the others. The eggs measure 

 17.4X 13.5 and 17.2 x 13.8 mm. and are somewhat pointed subelliptical 

 in form. 



The series of specimens of this form at hand from the mainland 

 area, Coiba, and the inshore islands, are fairly uniform, with the 

 usual variation in darkness of the dorsal surface due to the slight, 

 slow fading from intensity of light as the season progresses. Salvin's 

 type (sex not indicated), examined in the British Museum, is a 

 well-formed specimen in good condition. Its measurements of wing 

 69.7, tail 65.4, and culmen from base 11.6 mm, agree closely with 

 the average for the female. 



Those from the Archipielago de las Perlas have been interesting 

 since they are somewhat intermediate toward Sublegatus a. atrirostris 

 (Lawrence) of northern Colombia. The 11 males and 9 females 

 from the islands, as listed in the range given above, average faintly 

 darker dorsally, with a slight brownish cast, thus indicating rela- 

 tionship to that form. The gray of the anterior lower surface how- 

 ever is like that of typical arenartmi. Zimmer (Amer. Mus. Nov., no. 

 1109, 1941, p. 7) listed three specimens from Islas San Jose and 

 Pedro Gonzalez as atrirostris, and with them included two from Isla 

 Coiba. In an account of the birds of Coiba (Smithsonian Misc. Coll., 

 vol. 134, no. 9, 1957, p. 69), I indicated agreement with him, with 

 regard to the Perlas Islands series (but not from Coiba). Since then 

 our larger series indicates an intermediate condition, but with the 

 birds nearer arcnarmn. 



PHYLLOMYIAS GRISEICEPS CRISTATUS Berlepsch: Crested 

 Tyrannulet, Moscareta Crestada 



Phyllomyias cristatiis Berlepsch, Journ. f. Orn., vol. 32, April 1884, p. 250. 



(Bucaramanga, Magdalena, Colombia.) 

 Phyllomyias grisciccps quantulus Wetmore, Smithsonian Misc. Coll., vol. 122, 



no. 8, December 17, 1953, p. 8. (Cana, Darien, Panama.) 



Very small ; a short, somewhat bushy crest ; greenish olive above, 

 with darker crown ; yellowish on abdomen. 



Description. — Adult (sexes alike), crown fuscous-black, shading 

 on hindneck to dull greenish olive on back and scapulars ; rump and 

 upper tail coverts somewhat paler ; wing coverts basally dusky ; the 

 lesser coverts edged with greenish olive ; middle and greater coverts 

 tipped irregularly and indistinctly with dull grayish brown ; secon- 



