476 NOTES ON COSTA RTCAN BIRDS RIDGWAY. 



Young (JTo. 121330,* Volcaii de Irazu, May 1891; Aiiastasio Alfaro): 

 Above dusky brown (nearly clove-brown), each feather with a more or 

 less distinct subterniinal fl-^'^li^PGd or semicircular bar of bistre or sepia 

 brown, the rump and upper tail-coverts with more regular as well as 

 much more distinct bars of a light tawny-brown; wings much browner 

 than in the adult, the greater coverts and tertials with rather indistinct 

 tawny-brown tips; chin and throat pale grayish, mixed with bufl", pass- 

 ing laterally into uniform brownish gray on sides of neck and malar 

 region; ear-coverts uniform slate dusky; chest dull brownisli gray, the 

 feathers of median portion indistinctly tipped with dull buffy grayish; 

 breast and belly dusk.y, conspicuously squamated with bufl"; Hanks, 

 under tail-coverts, etc., as in the adult. Length (skin), 4.40; wing, 1.95 ; 

 tail, 1.50; exposed culmen, .43; tarsus, .80; middle toe, .GS. 



Another adult (No. 5419, Museo Nacional de Costa Rica, same local- 

 ity, etc.), is essentially like the one described, its measurements being 

 as follows : Length (" mummied" specimen), 4.25; wing, 2.05;- tail, 1.48; 

 exposed culmen, 0.45; tarsus, 0.80; middle toe, 0.68. 

 # The only Colombian species with which I have been able to compare 

 this are S. {piselcollis (four specimens) and *S'. analis Lafr. It agrees with 

 the latter in general style of coloration and in the very long and strong 

 liind toe and claw, but is much smaller, has a slenderer bill, with less 

 curved outlines, and is furthermore distinguished by the silvery luster 

 to the plumage of the head, especially on the forehead. 



The discovery of a species of this Antarctic and Andean family at a 

 locality north of the Isthmus of Panama is a notable event, for the 

 achievement of which Mr. Alfaro deserves congratulations. 



7. Chloronerpes caboti (Malh.). ? 



An apparently immature male specimen differs from undoubted 

 adults of C. caboti from both Costa Rica and Honduras in its generally 

 darker and duller coloration. It may be described as follows : 



Immature male (No. 540G, Museo Nacional de Costa Rica, Jim6hez, 

 C. R., March 28, 1891 ; Anastasio Alfaro) : Above, ])lain greenish olive, 

 brightest on the lower back, but nowhere approaching the bright tawnj^- 

 olive of the adult; whole crown and occiput, superficially, red, as in 

 the adult, but the color less bright ; pale subauricular space much less 

 distinct than in the adult ; lower parts dull olive, altogether less bright 

 and tawny or oleagineous than in the adult. " Bill black ; iris dark 

 brown; feet slate-gray." Length (skin), 0.20; wing, 3.30; tail, 1.82; 

 culmen, ,82; tarsus, .68. 



8. Trogon massena Gould. 



Two adult males, one from Pacuare (No. 1591, M. N. C. R., May, 1876, 

 J. C. Zeledon), the other from Jimenez (No. 3948, M. N. C. R., Decem- 

 ber 24, 1889, George K. Cherrie), are remarkably different in the color- 



*No. 5417, Museo Nacional de Costa Rica. 



