()20 BULLETIN r)0, UNITED STATES NATIONAL MUSEUM. 



NANNORCHILUS LEUCOGASTER MUSICUS (Nelson). 

 PALENGUE WREN. 



Similar to 3^. /. Itucogaster but decidedlj- darker, the upper parts 

 (in spring and summer plumage") deep russet brown (between raw- 

 umber and prouts brown), the flanks deep Isabella color or wood brown. 



Adult m«/^.— Length (skins), 90-99 (94.5); wing, 50-52(51); tail, 

 28-29.5 (28.7); exposed culmen, 13; tarsus, 18-19 (18.5); middle toe, 

 11-11.5 (11. 2). « 



Southern ]Mexico, in States of Tabasco (Teapa) and Chiapas (Palenque) 

 and adjacent parts of Guatemala. 



Bemiura leucogastra musica Nelson, Proc. Biol. Soe. Wash., xvi, Nov. 30, 1903, 

 159 (Teapa, Tabasco; coll. U. S. Nat. Mns.). 



NANNORCHILUS LEUCOGASTER BRACHYURUS (Lawrence). 



TEMAX WREN. 



Similar to //. /. lencogaHtra^ but bars on tail very much more distinct 

 (both darker in color and more sharply defined), and under tail- cov- 

 erts whitish distinctly barred with dusky. 



Mult W7rt/^.— Length (skins), 90-101 (96); wing, 46.5-52 (50.1); tail, 

 29.5-33 (31.5); exposed culmen, 13-14.5 (14); tarsus, 17.5-19.5 (18.9); 

 middle toe, 11-12.5 (11.7).'' 



Adult female.— \^^x\^i\\ (skins), 87-97 (91); wing, 46-49.5 (47.9); tail, 

 25.5-30 (28.1); exposed culmen, 12-13.5 (13); tarsus, 17.5-19.5 (18.7); 

 middle toe, 10.5-12(11.2).'' 



Yucatan (Temax; Chichen-Itza; Tunkas; Puerto Morelos) and Cam- 

 peche (Apazote; Campeche). 



Trofjlodytes brachyurm Lawrence, Ann. N. Y. Acad. Sci., iv, no. 2, June, 1887, 



67 (Temax, Yucatan; coll. G. N. Lawrence. 

 Hemiura hraclvjura Chapman, Bull. Am. Mus. X. H., viii, Dec. 11, 1896, 277 



(Chichen-Itza, Y ucatan ) . 



Genus THRYOPHILUS Baird. 



ThrtiopMlus Baird, Eeview Am. Birds, Aug., 1864, 127. (Type, Thri/othorus 

 rufalbus Lafresnaye. ) 



Medium sized to rather small Troglodytidiv (wing 51-76 mm.) 

 resembling Ph<3ugoped!u.s^ but with l)ill distinctly notched, and nostril 

 small, roundish or oval, nonoperculate, opening into anterior end of 

 nasal fossa. 



Bill usually shorter than head, compressed anterior to nostrils, its 

 depth at latero-frontal antia? equal to much less than half (sometimes 



a Two specimens, one from Tabasco the other from Chiapas; an adult from Guate- 

 mala (sex not determined and exact locality unknown) is precisely similar in 

 coloration. 



^ Ten specimens. 



c Seven specimens. 



