r>38 



NOTES ON COSTA RIOAN BIRDS. 





The difference in coloration is not great, both being plain olive or 

 olive-green above and plain grayish beneath; but while Zeledonia has 

 a largo brownish-orauge crown-patch, bordered laterally by a black 

 stripe, Xenicus has a brown pileum, bordered laterally with black, and 

 a broad white superciliary stripe. 



Xenicus is now referred to the Clamatorcs ; but whether Zeledonia is 

 a related form belonging to the same suborder or an aberrant osciniue 

 type, can not, probably, be determined without examination of its anat- 

 omy.* 



I have named this genus in honor of Senor Don Jose C. Zeledon, of San 

 Jose, Costa Rica, to whom chiefly we are indebted for our knowledge of 

 the richly diversified ornithology of that interesting country. 



Zeledonia coronata, sp. nov. 



Sr. Char. — Adult female (type, No. 11G591, U. S. Nat. Mus., Laguna 

 del Volcan de Poas, Costa Rica, Nov. 23, 1888; A. Alfaro).— Pileum 

 orange-ochraceous, bordered laterally by a rather broad stripe of black; 

 restof head (including superciliary region), together with under parts, ex- 

 cept sides, flanks, and under tail-coverts, plain slate color or slate-gray ; 

 hind neck and other upper parts plain dark greenish olive, tinged with 

 brown in certain lights; sides and flanks similar, but paler; under tail- 

 coverts olive-grayish. Bill and feet black; iris black. t Length (skin), 

 4.35; wing, 2.40; tail, 1.55; culinen, .57; tarsus, 1.02; middle toe, .60. 



Campylorhynchus capistratus (Less.). 



A pair of adults belonging to the Costa Rica Natioual Museum agree 

 with other Costa Rican specimens, as well as those from Nicaragua, in 

 the Smithsonian collection, in the characters already pointed out by me 

 (these Proceedings, Vol. x. p. 507) as distinguishing C. cwpistratas 

 from ft castancus Ridgw., of Honduras and Guatemala, except that the 

 back is more deeply and uniformly chestnut. Still the lower back is 

 distinctly spotted with blackish and pale rusty, which is not the case 



" Since the above was written I have received from Mr. Zeledon skeletons of Zele- 

 donia and Calharus gradlirostris, and they are now in the hands of Mr. Frederic A. 

 Lucas, who will prepare a paper giving the results of his comparisons. Mr. Lucas 

 informs me that so far as his investigations have gone they show that Zeledonia is not 

 related to Catharu8, hut he is not yet prepared to give any farther opinion as to its 

 relationships. 



t Fide M.S. on label. 



