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PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 401 
Vol. VI, No. 26. Washington, D.C. April 11, 1884. 
*21. Oryzoborus nuttingi sp. nov.* 
Rather common. Found inthe patch of marsh grass referred to under 
G. concreta. They seem to be rather stupid birds, as they remained 
on a little bush on which they were perched until I had loaded and fired 
three times, securing three specimens. 
Apparently gregarious. Four specimens. 
22. Spermophlia corvina Scl. 
Common. Prefers open ground covered with grass and weeds. Four 
specimens. 
23. Embernagra striaticeps (Lafr.). 
Abundant. Found in brush heaps at the edge of the forest. Six 
specimens. 
Fam. ICTERIDAE. 
24. Ostinops montezume (Less.). 
Not nearly so abundant as on the other side of the lake. One speci- 
men. 
appears to be hitherto undescribed. As they agree very well, however, with the males 
of that species in dimensions and white under wing-coverts, I have thought best to 
so name them provisionally, or until males may be obtained.—R. R. 
Note.—Mr. Salvin, to whom these specimens have been sent for comparison, says 
that they ‘‘are probably the female of O. ethiops of Western Ecuador, but the male 
is wanted to make certain. Anyhow, the two birds are closely allied.” Should the 
species prove to be distinct from O. ethiops, as will most likely be the case, I propose 
for it the name of O. salvini.—R. R. 
* ORYZOBORUS NUTTINGI Ridgw. MS. 
Sp. cH.—Adult g: Uniform black, without white on underside of wing or base of 
primaries ; under surface of primaries dull dark grayish, paler (but not inclining to 
white) basally. Billpale brown. Wing, 2.70-2.75; tail, 2.70-2.75; culmen,.70; depth 
of bill at base, .65; width of mandible, .55; tarsus, .70-.75; middle toe, .55. (Types 
91195 and 91196, Los Sabalos, Nicaragua, C. C. NUTTING.) 
Adult 9: Above uniform dark umber-brown; beneath uniform, rather dark, cinna- 
mon-brown ; lining of wings rather light fulvous. Bill brownish black; “iris brown,” 
feet dusky. Wing, 2.70; tail, 2.70; culmen, .70; depth of bill at base, .60; tarsus, 
.70; middle toe, .65. (Type 91198, Los Sabalos, Nicaragua, May 10, 1883; C. C. 
NUTTING. ) 
Young 2: Similar to the adult 9, but tertials bordered with light rusty, and lower 
parts much less reddish. Bill uniform black. Wing,2.60; tail, 2.60; culmen, .65; 
depth of bill at base, .60; tarsus,.70; middle toe,.60. (Type 91,197, same locality, 
etc., as the above specimens.) 
This fine Oryzoborus is very distinct not only from O. funereus, but also from alll 
other species of which I have been able to find descriptions. The adult male is 
characterized by its entirely blaek plumage, with no white whatever on wings or tail, 
the inner webs of the primaries grayish black, becoming paler grayish basally. It is 
one of the largest species of the genus, and has the bill remarkably robust, the base 
_of the culmen much arched, and dividing the frontal feathers for .25 of an inch.—R, R. 
Proc. Nat. Mus. 83 26 
