190 PROCEEDINGS OF THE ACADEMY OP 



genus Conopophaga belong. Though with the general form and appearance of 

 Pitta and Grallaria, this bird differs from them in having a very strong depressed 

 and rather wide bill, not compressed as in those genera. In this respect, and 

 other structural characters, it approximates to Conopophaga, and also in having 

 more variegated and agreeable colors than in Grallaria. This bird is in fact, 

 the most handsome bird of its group yet discovered in America. The only 

 specimen in the collection of the expedition is labelled as a male. 



Another and very fine specimen of this bird, kindly loaned to me by Mr. ^ 

 Lawrence, of New York, belongs to the collection of J. McLeannan, Esq., offr 

 that city, and was obtained by him on the Isthmus of Panama. 



" On the river Truando. January 22d, 1858, above its junction with the Atrato, 

 but before reaching the Cordilleras. In the woody places running on the ground 

 very swiftly, and scratching among the leaves, not common." (Mr. C. J. 

 Wood). 



This handsome bird I have named in honor of the commanding officer of the 

 expedition, Lieut. N. Michler, of the U. S. Topographical Engineers, under 

 whose direction, and with whose judicious advice and assistance, the present 

 interesting collection was made, as stated in the preliminary note to this paper. 



91. Formicivoba grisea, (Boddsert). 



Turdus griseus, Bodd. Tab. PI. Enl. p. 39, (1783). 

 Formicivora nigricollis, Swains. Zool. Jour. ii. p. 147. 

 Spix. Av. Bras. ii. pi. 41. Buff. PI. Enl. 643. 

 From Carthagena. 



" On the ' Popa' mountain, at Carthagena. Very abundant in the bushes, 

 but very quick in motion, and shv, flying off on slight noise or alarm. Novem- 

 ber, 1857." (Mr. W. S. Wood, Jr.) 



92. Formicivora quixensis, (Cornalia). 



" Thamnophilus quixensis, et rufiventris, Corn. Sclater." 

 " Myiothera perlata." Label in Mus. Acad. Philadelphia. 



From the river Truando. 



Both sexes, much as given in the descriptions above cited and labelled by 

 the collectors as male and female of the same species. 



" Abundant at the camp in the Cordilleras, on the Rio Truando. In the 

 high trees, actively capturing insects, and never observed descending to the 

 bushes. The two plumages labelled as male and female, were constantly seen 

 together, and were thought by my brother and myself to be the same bird." 

 (Mr. W. S. Wood, Jr.) 



93. Hypocnemis NvBvioides, (Lafresnaye). 



Conopophaga nsevioides, Lafr. Rev. Zool. 1847, p. 69. 



From the falls of the Truando. 



" At camp Floyd, on the south side of the river Truando, before reaching 

 the first range of the Cordilleras. Running on the ground amongst bushes, 

 and always in damp or marshy places, much resembling in its actions the 

 Water Thrush of the United States, (Seiurus noveboracensis) . Frequently seen 

 in January and February, 1858." (Mr. W. S. Wood, Jr). 



94. Myrmotherula pygm-SA, (Gmelin). 



Muscicapa pygmaea, Gm. Syst. Nat. i. p. 983, (1788). 

 Buff. PI. Enl. 831. 

 From the river Truando. 



"Abundant on the 'Cremantina' trees, especially at Camp Toucey, in Janu- 

 ary, 1853. Frequently seen also in the Plaintains or Bananas, constantly 

 searching for insects amongst the fruit and leaves." (Mr. W. S. Wood, Jr.) 



95. Myrmotherula surinamensis, (Gmelin). 



Sitta surinamensis, Gm. Syst. Nat. i. p. 442, (1788). 

 Lath. Gen. Hist. iv. pi. 62. Proc. Zool. Soc. London, 1858, pi. 141. 

 From Turbo. 

 " Frequently seen in the trees at Turbo, and the male was at first supposed 



[May, 



