Ridgway — New Species of Bird* from Tropical America. 89 



This form has hitherto been referred to .)/. uiorplueus (Halm and 

 Kflster), of eastern Brazil, Imt is decidedly smaller and differs further in 

 the black instead of white malar apex. Six specimens (from Diamantina, 

 Santarem, and Itaituba) agree in the characters mentioned. 



Monasa sclateri sp. aov. 



Type from central Colombia ("Bogota" trade skin). No. (14,076, 

 adult, r. S. National Museum. 



Similar in restriction of white (or pale rusty) on head to forehead and 

 lores (the chin and malar apex being black) to M. pallescens Cassin, of 

 extreme northwestern Colombia, but conspicuously different in much 

 darker coloration of the wing-coverts, which are deep slate-gray instead 

 of pale hoary gray, becoming nearly white on anterior portion of lesser 

 covert area and under side of wing. 



Measurements of type. — Wing, 140; tail, 134; exposed culmen, 35; 

 tarsus, 20; outer anterior toe, 1!). 



This is the " Monasa .pallescens ' '' of Sclater and various authors, but 

 not of Cassin. True M. pallescens seems to be unknown in collections 

 except for the type and co-types, from the Rio Truando, in the collections 

 of the Academy of Natural Sciences, Philadelphia, and the U. S. National 

 Museum. Seven specimens of M. sclateri examined, from " Bogota," 

 and near Honda, Tolima. 



Momotus lessonii exiguus subsp. nov. 



Type from Temax, Yucatan. No. 106,311, coll. U. S. Nat. Mus. 

 Adult male. January, 1885. Collected by F. Gaumer. 



Similar to -1/. 7. lessonii, but general color rather lighter and decidedly 

 greener, the hindneck always green (concolor with back, etc.), and 

 under parts with tawny wash (if present) confined to chest; bill averag- 

 ing decidedly smaller. 



Measurements of type. — Wing, 130; tail, 210; bill from nostril, 26.5; 

 tarsus, 28.5; middle toe, 19. 



Electron* carinatus viridis subsp. nov. 



Type from La Vijagua, northern Costa Rica. No. 21,067, coll. E. A. 

 and 0. Bangs. Adult male. March :;, 1908. Collected by C. F. 

 Underwood. 



Similar to E. c. carinatus, but general color of under parts dull green, 

 tinged on foreneck, chest, and breast with (dive-green, but without the 

 tawny oil green suffusion always present and often conspicuous in 

 E. c. carinatus, the posterior under parts light bluish green; upper parts 



* Elect ron Gistel, Naturg. des Thierreichs fvir liohere Schulen, 1848, p. viii. (New 

 name for Crypticus " Bonaparte " i.e. Swainson, preoccupied.) 



As this name antedates Prfonornis Salvin and Godman (Biol. Centr.-Am., ii, sig. 

 59,* July, L895, 167), I do not see how we can moid its use as the correct name for this 

 genus. 



