386 Ant. Reichenow und Herrn an Schale w: 



the base, anterior to which the edge is decidedly concave ; maxillary 

 tomia with a decided notch near the base, immediately above the 

 mandibular angle; gonys very long (about equal to the exposed 

 portion of the culmen); nostrils exposed, small, longitudinal, 

 occupying less than the lower half of the nasal fossae. Tarsus 

 a little longer than the mittle toe and claw, divided into about 

 six plates, but these entirely fused on the outer side, except the 

 lower one, which is distinct; lateral toes equal, the points of their 

 claws falling short of the base of the middle claw; inner toe 

 entirely separated at the base from the middle toe, and outer with 

 only its first phalanx united; hallux about equal in length to the 

 lateral toes, but much stronger, its claw decidedly larger than that 

 of the middle toe. Wings decidedly longer than the tail, very 

 concave beneath, the 3d, 4th, and 5th quills nearly equal and 

 longest, the 2d very little shorter, the Ist about equal to the 7th. 

 Tail about equal to the wing measured to the ends of the secon- 

 daries, nearly even or very slightly rounded, consisting of twelve 

 rectrices, which are acute but not stiffened at the points; the outer 

 web of the intermediae broader at the base than the inner v^eb. 

 Type: A. Bairdi Ridgway. 

 "f- 258. Acanthidops Bairdi. 



R. Ridgway,Proc. ün.St.Nat.Mus. Vol. 4 1881. March 10. 

 1882. p. 336. 



$ : Above dull olive-brown, the back washed with rusty ; wings 

 dusky, the middle and greater coverts tipped vrith pale rusty, 

 forming two distinct bands, the inner secondaries broadly edged with 

 darker rusty; remaining secondaries narrowly skirted with dark 

 umber-brown, the primaries with light, dull ochraceous or yellowish 

 olive. Tail dusky, the outer webs slightly greenish olivaceous. 

 Pileum indistinctly streaked with dusky ; sides of the head and neck 

 dull olivaceous, lighter than the crown and nape; chin and throat 

 still paler, the feathers pale ashy beneath the surface ; rest of lower 

 parts dull, light olivaceous, tinged with deeper olive across the 

 breast and along the sides. Maxilla blackish, paler along the 

 edge ; mandible whitish; legs and feet light brownish (in dried skin); 

 iris pale blue. 



Wing 2,50; tail 2,20; culmen 0,58; tarsus 0,80; middle toe 0,60. 



Hab.: Volcan de Jrazü, Costa Rica. 



259. Picolaptes peruviamis. 



L. Taczanowski, P. Z. S. 1882. p. 28. 



P. lacrymiger Tacz. P. Z. S. 1874 p. 579. 1879 p. 232. 1880 

 p. 201. 



P. supra olivaceo-rufus, pileo obscuriore ; uropygio, alis caudaque 

 cinnamomeis; pileo usque ad nucham maculis miuimis subtrian- 

 gularibus, pallide fulvis, nigro terminatis notato; gutture fulvo 

 immaculato ; capitis lateribus superciliisque albidis brunneo striatis; 

 pectoris abdominisque plumis rufo-olivaceis, striga mediana oblouga 

 tiilva aut albida, apice plus aut minus acuta, nigro marginata notatis, 



