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406 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 
tbat, when the bird is quite near, the note seems to issue from the trees 
instead of from the ground, whence it really proceeds. 
The note is easily imitated, and I found that the bird could be secured 
by calling it. But itis necessary for the collector to be well concealed, 
as the bird has remarkably keen eyes and will not approach a suspicious 
object. 
Two specimens. 
53. Grallaria dives Salv.* 
Apparently rare. Only one specimen secured, and that was shot 
while running along the ground in the thick woods. 
Fam. TROCHILID A. 
* 54. Pheochroa roberti Salvin. 
Abundant. Two specimens. 
55. Chalybura melanorrhoa Salvin. 
Rather common. One specimen. 
56. Amazilia fuscicaudata (Fraser). 
Common. One specimen. 
Fam. CAPRIMULGIDA. 
*57. Nyctidromus albicollis (Gm.). 
Very abundant. One specimen. 
Fam. PICIDA. 
*58. Campephilus guatemalensis (Hartl.). 
Not common. One specimen. 
59. Melanerpes pulcherani (Malh.). 
Rather common. Two specimens. 
* Costa Rican specimens in the National Museum collection, labeled G. dives, are 
evidently distinct and apparently unnamed. They clearly represent a distinct form, 
somewhat intermediate between G. dives and G. perspicillata; but since it possesses 
some peculiar features, I propose to characterize it as a distinct species, for which the 
name intermedia is proposed. 
The three allied species may be distinguished as follows: 
a. Wing-coverts very distinctly spotted with ochraceous; breast pale buff, or bufty 
white, very broadly and distinctly streaked with black; a very distinct black rictal 
stripe, or “‘ bridle.” 
1. G. PERSPICILLATA. Flanks white, narrowly striped with black or dusky; back 
olive-brown, marked with distinct guttate streaks of buff. Hab. Panama and Vera- 
gua (specimens from the former locality only examined by me.) 
2. G. INTERMEDIA. Flanks bright ochraceous, wholly unstreaked ; back slaty (but 
slightly tinged with olive), with few or no streaks. Hab. Costa Rica (Angostura and 
Talamanca; Tucurrique specimens not seen). 
b. Wing-coverts without trace of ochraceous spots ; breast bright ‘“‘ foxy ” ochraceous, 
narrowly and indistinctly streaked with black ; no trace of black rictal stripe. 
3. G. pives. Flanks bright ‘foxy ” ochraceous, immaculate; back dusky brownish 
slate, the feathers with fulvous shafts. Hab. Nicaragua (Greytown and Los Saba- 
los).—R. R. 
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