1887.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 581 



33. Thamnophilus intermedius, sp. tiov. 



Sp. guar. — Adult male : Similar to Hmt of T. nhjficrisiatKs Lawr.,* 

 but bill larger, and feathers of crest largely white in middle i)ortioii ; 

 adult female similar to that of T. doUatus, but with larger bill. 



Habitat. — Honduras (Truxillo). 



Adult male (type, No. 112555, Truxillo, nonduras, September 27, 

 1887 ; Charles 11. Townscnd) : Above deep black, the forehead and crown 

 scantily streaked with white, (concealed portion of crest nii.xed with 

 white, and rest of ui)per surface marked with small transverse spots 

 of white ; chiu and throat streaked with white and black, and other 

 lower parts barred with the same in about equal amount. Uill black, 

 becoming dusky livid grayish on basal two-thirds of lower mandible; 

 legs and feet blackish (plumbeous in life?). Length (skin) G.20, wing 

 2.90, tail 2.G0, exposed culmen .80, bill from nostril .50, depth in middle 

 .28, tarsus 1.03. 



Adult female (No. 11255G, same locality and collector, October 1, 1887): 

 Pileum uniform deep chestnut, paler anteriorly, the forehead dull ochra- 

 ceous; back, scapulars, wings, and tail rusty chestnut, the rump duller 

 and paler, or inclining to dull ochraceous ; sides of head and neck buff", 

 broadly streaked with black, the streaks broadest on postocular region 

 and sides of neck; chin and throat light buffy, the latter narrowly streaked 

 with black ; rest of lower parts light ochraceous, deeper laterally ; bill 

 and feet as ia male. Length (skin) G.70, wing 2.90, tail 2.G5, exposed 

 culmen .72, bill from nostril .48, depth in middle .27, tarsus 1.05. 



A series of twenty-two males and twelve females from southern 

 Mexico (including Yucatan), Guatemala, Nicaragua, and Costa Kica, 

 affords no specimens from which the two described above may not be 

 readily distinguished. 



34. Rhamphocaeuus rufiveutris Bp. 

 Two specimens, September 22, 23. 



35. Trogon melanocephalus Gould. 

 Three specimens, September 21, 30. 



36. Chordeiles texensis Lawr. 

 One specimen, September 30. 



"Thamnophilus nigrici-istatus Lawu. Pr. Ac. Nat. Sci. Phil., 1S65, 107 (Isthnins Pan- 

 ama). This species, while related to both T. radiatus Vieill. and T. doliatus (Linx. ), is 

 clearly distinct. The adult male has, like that of T. rrt(?irt<«s, the entire pilenm black; 

 hut the rest of the upper plumage, instead of being more broadly barred Avith -vvhite 

 than in T. doliatus, has the white markings reduced to small spots. The female I 

 am unable to distinguish from females referred to T. radiatus from Veragiia, Panama, 

 and Cartagena, which, however, may in reality belong to T. nigricristains ; tiiough it 

 should be remarked that the National Museum collection contains adult males of what 

 is apparently T. radiatus from the first and last of the above-mentioned localities. A 

 female of T. radiatus from Cearil, Brazil, is certainly very different, having the wing 

 and tail much longer, the bill decidedly shorter though doopsr, the un^cr parts much 

 paler, and the ground-color of the sides of head and neck nearly white. 



