90 BIOLOGICAL SOCIETY OF WASHINGTON. 



P. minimus, but are light colored beneath as in californiciis, being 

 thus, as should be expected, intermediate ; further north, along the 

 humid, densely wooded coast, specimens probably approximate 

 more closely to the typical form. 



Types, Nos. 91,643, $ ad., Baird, Shasta Co., California, May 

 27, 1883, Chas. W. Townsend; 71,935, 9 ad.. Ft. Tejon, Cal., 

 Aug. 7, 187s, H. W. Henshaw; 71,924, Walker's Basin, Cal., fall; 

 71,918, 9 ad., same locality and collector, Nov. 10, 1875 ^ 915890, 

 juv., Baird, Shasta Co., California, June 26, 18S3, Chas. W. Town- 

 send. 



3. Colaptes mexicanus aaturatior, new subspecies. 



SuBSPECiFic Characters. — Similar to C. mexicamts, but much 

 darker colored. Back, etc., rich, dark umber-brown, throat deep 

 plumbeous-gray, and lower parts deep vinaceous-pink. JIab. North- 

 west coast, from the Columbia River to Sitka. 



Types, Nos. 40,063, $ ad., Neah Bay, Washington Territory, 

 J. G. Swan; 13,516, 9 ad., Simiahmoo, Washington Territory, 

 Dr. C. B. Kennerly. 



4. Myiarchus mexicanus magister, new subspecies. 



SuBSPECiFic Characters. — Differing from typical M. mexicamis 

 in much larger size, with proportionally longer and stronger bill. 

 Wing, 4.05-4.40; tail, 4.10-4.60; culmen, 1.10-1.27; bill from 

 nostril, .60-. 82 (average about .70) ; tarsus, .88-. 95 (average about 

 .92). Hab. Western Mexico, north to southern Arizona. 



Types, Nos. 86,005, $ ad.. Camp Lowell, Arizona, and 57.640, 

 9 ad., Tehuantepec, Mexico. 



In order to determine positively, if possible, the relationship of 

 the larger Mexican Myiarchi, I sent recently to Dr. Sclater a series 

 of specimens, asking him to compare them with Kaup's types of his 

 Tyrannula mexicana and T. cooperi, which were supposed to be in 

 the British Museum. His reply has just been received, and is, in 

 substance, as follows : 



" The original of Kaup's description [of T. mexicand\ is not in 



