Nelson, Ne~v Birds from Mexico and Guatemala. 



TAuk 

 Ljan. 



Motzoiongo, in Vera Cruz, in the same region from which came 

 the original specimen, and I am now in position to properly locate 

 the species generically. It forms a distinct type of Wren of 

 generic value and having Microcerculus as its nearest ally. Some 

 of its characters indicate a close relationship to Catherpes as well, 

 so that its position appears to be that of an intermediate group 

 between those two genera. 



The measurements of the two specimens in the collection are 

 given below and show the proportions of the parts. With only the 

 single species to deal with, it is difficult to decide between specific 

 and generic characters, but the distinctive points named will serve 

 until modified by the discovery of other species. 



Measurements of Hylorchilus sumichrasti (Lawr.). 



These birds inhabit the gloomiest recesses of the heavy tropical 

 forest, keeping about jutting rocks on steep hillsides, where the 

 forest is so dense that the undergrowth is sparse and the sun 

 scarcely penetrates to the ground. We found them only at an 

 elevation of from about 800 to 1200 feet above sea level on the 

 base of the Cordillera fronting the Gulf of Mexico. They appear 

 to be very local in their distribution, for we searched for them in 

 similar situations elsewhere in eastern Mexico without success. 



Hemiura pacifica, new species. Pacific Wren. 



Type, No. 142935, U. S. Nat. Museum, Dept. Agric. coll., $, Manzanillo, 

 Colima, Mexico, February 8, 1896. Collected by E. W. Nelson (Orig. 

 No. 46). 



Distribution. — The type and only known specimen of this species was 

 taken at Manzanillo on the west coast of Mexico. 



Description. — Compared with H. leucogastra and //. leucogastra 

 brachyura from the east coast of Mexico this species may be distinguished 



