BIRDS OF NORTH AND MIDDLE AMERICA. 483 



brownish while; lower portion of lores dusky; auricular region and 

 sides of neck light olive (the former with very narrow and indistinct 

 paler shaft-streaks) , fading gradually to dull buffy whitish on chin and 

 thi'oat; chest light buffy olive, paler and more yellowish buffy medi- 

 ally, passing posteriorly into light buify yellow (pale naples yellow or 

 straw yellow) on rest of under parts, the sides and flanks faintly tin^d 

 with olive; maxilla horn brown basally, blackish terminally, mandible 

 horn brown, paler basally; iris dark brown; legs and feet black; 

 length (skins), 120-136 (128); wing, 61-63 (62); tail, 53-55.5 

 (54.3); exposed culmen, 15.5; tarsus, 20.5-21.5 (21); middle toe, 

 10.5-11 (10.7).'* (Adult female and young unknown.) 



Cocos Island, off Pacific coast of Costa Rica (lat. 5° 33' N., long. 

 87'^2' W.). 



Nesolriccus ridgivnyi Townsend (C. H.), Bull. Mus. Coinp. Zool., xxvii, no. 3, 

 July, 1895, 124, plate (Cocos I.;b coll. U. S. Nat. Mus.). — Snoi»gr.\ss and 

 Heller, Proc. Wash. Acad. Sci., iv, 1902, 518 (description). 



[Nesotriccus] ridgioayi Sharpe, Hand-list, iii, 1901, 147. 



Genus CNIPODECTES Sclater and Salvin. 



C'mpodectesc.ScL.VTER and Salvin, Proc. Zool. Soc. Lond., 1873 (pub. Aug. 1), 281. 

 (Type, Cydorhynchus subbrunneiis Sclater.) 



Medium sized Tyrannidse (wing about 70-90 nun.) with plain browTi 

 coloration (paler and grayer below^ with abdomen pale yellowish or 

 yellowish white), outer toe nearly as long as middle toe, whole of basal 

 and a small part of second phalanx of the latter united to outer toe, 

 tail nearly as long as wing, even or slightly emarginate, tarsus more 

 than one-fifth as long as wing, and width of bill at frontal antite equal 

 to about half the length of exposed culmen. 



Bill shorter than, but nuich more than half as long as, head, depressed, 

 broadly wedge-shaped in vertical profile, its width at frontal antise 

 equal to about half the length of exposed culmen and nearly twice its 

 depth at same point; exposed culmen shorter than middle toe with 

 claw, distinctly ridged, nearly straight for most of its length, rather 

 abruptly decurved terminally, the tip of maxilla moderately uncinate; 

 gonys decidedly longer than mandibular rami, slightly convex; 

 maxillary tomium nearly straight, distinctly notched subtermmally. 

 Nostril exposed, rather small, roundish or broadly oval, nonoper- 

 culate, in anterior end of nasal fossae. Rictal" bristles well developed, 

 the feathers of chin and frontal antia? also with distmct bristly tips. 

 Wing rather long, with longest primaries exceeding secondaries b}' 

 length of exposed culmen or more; eighth primary longest, seventh 



« Two specimens. 



b Cocos Island is in the Pacific Ocean southwest of ("osta Rica, in lat. 5° 30' X., long. 

 87° W. 



o"Ki'iip, culex, et Si'/Kn/i, iitordiculor/' 



