NATURAL SCIENCES OF PHILADELPHIA. 189 



and very shy. Has a harsh loud note, and appeared to be pursuing large 

 insects, occasionally alighting on the ground." (Mr. W. S. Wood, Jr.) 



87. Thamnophilus. 

 From Turbo. 



Two specimens labelled as females, nearly allied to T. caesius, (Cuv). and 

 T. cethiops, Sclater. 



88. Thamnophilus, 



From the River Truando. 



Several specimens, all in young plumage, probably of a species allied to 

 T. atricapillus. 



" All of the preceding five species live in the bushes, and are often to be 

 seen on the ground, and appear to subsist by capturing insects in various 

 stages, which are exceedingly abundant. All of them are more or less noisy, 

 having harsh, though not always disagreeable notes, which can constantly be 

 heard where they frequent. When alarmed, they take long flights very pre- 

 cipitately, and are not easily collected." (Mr. W. S. Wood, Jr.) 



89. Pachyrhamphus rufescens, (Spix) ? 



From Turbo. A single specimen in young plumage. 



" On the Cremantina, a high tree with very abundant foliage. Has much 

 the habits of a Fly-catcher, darting out in pursuit of insects, and returning to 

 its perch, and moving his tail in the same manner." (Mr. W. S. Wood, Jr.) 



Genus Pittasoma, nobis. 



General aspect of Conopophaga, Vieillot, but larger, and bearing about the 

 same relation to that genus as Grallaria, Vieillot, does to Grallaricula, Sclater. 

 Also resembling Pitta, Vieillot, but differing from all the genera here men- 

 tioned, except Conopophaga, in having the bill wide and depressed, not com- 

 pressed. 



Form robust, wings short, concave, rounded, fifth, sixth and seventh quills 

 longest ; tail very short ; bill strong, wide at base and narrowing gradually, 

 depressed, upper mandible notched near the tip, and with the culmen distinct, 

 a few rudimentary bristles at base ; nostrils oval, inserted in a large membrane ; 

 legs long, very strong, tarsus with about five large scales in front, which 

 become nearly integral on the outside, and quite so behind ; toes moderate ; 

 claws curved, sharp. 



90. Pittasoma Michleri, nobis. 



tf Head above black, the shafts of the feathers lustrous, large space on the 

 cheek, extending completely around the neck behind, bright chestnut, throat 

 black, many of the feathers tipped with white, and with chestnut, lores white ; 

 back reddish olive, many feathers edged with black on each side ; rump, upper 

 tail coverts and wing coverts greenish rufous, the last (wing coverts) with 

 small terminal spots of white, which spots are edged and nearly enclosed with 

 black ; under parts white, every feather having two or three rather wide, 

 transverse, waved or crescent- shaped bands of deep black; abdomen and 

 under tail coverts, tinged with ferruginous, but transversely striped with black, 

 same as other under parts of body; under wing coverts, dull greenish brown, 

 striped and spotted with white and black ; quills greenish rufous, some of the 

 shorter quills having sub-terminal spots of light rufous, edged with black ; 

 tail greenish rufous ; upper mandible dark bluish horn color, lighter towards 

 the tip ; under mandible yellow, legs light horn color. 



Total length from tip of bill to end of tail, about 7 inches, wing 3|, tail If, 

 bill from gape If, tarsus If inches. 



Hab. River Truando, New Grenada. Discovered by Mr. William S. Wood, 

 Jr. and Mr. Charles J. Wood. (Panama, Mr. J. McLeannan). Spec, in Nat. 

 Mus. Washington. 



This is the most remarkable bird in the collection of the expedition, and is 

 one of the most handsome of the Ant Thrushes, if indeed to that group it and the 



I860.] 



