152 Nelson New Birds from Southern Mexico. 



Dimensions of type. Wing, 160; tail, 113; culmen, 16; tarsus, 43. 

 Remarks. This form is based on eleven specimens all from the type 

 locality. 



Dactylortyx thoracicus sharpei, subsp. nov. 

 Yucatan Long-toed Grouse. 



Type.'So. 167,737, $ ad., U. S. Nat. Mus., Biological Survey Coll. 

 From Apazote, Campeche, Mexico. Collected December 31, 1900, by E. 

 W. Nelson and E. A. Goldman. 



Distribution. The Peninsula of Yucatan, including the States of Cam 

 peche and Yucatan (below 1,000 feet). 



Subspecific characters. Smaller than D. thoracicus; white area on ab 

 domen larger; color of breast, flanks, top of shoulders, back and upper 

 surface of wings paler; cheeks and superciliary stripe of type deeper and 

 richer cinnamon rufous and top of head richer and brighter chestnut 

 brown than in any male seen of other races of this species. 



Dimensions of type. Wing, 122; tail (?); culmen, 16; tarsus, 35. 



Remarks. In the Biologia, Vol. Ill, p. 309, Dr. Sharpe first called at 

 tention to the small .size and paler colors of these grouse from Yucatan. 

 Three specimens in our collection from Campeche agree with the Yuca 

 tan birds in these characters, and evidently represent a recognizable geo 

 graphic race peculiar to the arid peninsula of Yucatan, which I take 

 pleasure in dedicating to Dr. Sharpe. 



In this connection I wish to record the confirmation of the validity of 

 Dactylortyx demus, Nelson, by a series of 13 specimens taken by Mr. 

 Goldman and myself at Omilteme, Guerrero, during May, 1903. It is al 

 together probable that specimens from intermediate territory will show 

 that this is merely a well-marked geographic race of D. thoracicus. 



Syrniutn occidentale lucidum, subsp. nov. 

 Mexican Spotted Owl. 



Type. No. 185,269, 9 ad., U. S. Nat. Mus., Biological Survey Coll, 

 From Mt. Tancitaro, Michoacan, Mexico. Collected February 27, 1903, 

 by E. W. Nelson and E. A. Goldman. 



Distribution. Known only from the forested mountains about the 

 southern end of the Mexican tableland (above 6,500 feet). 



Subspecific characters. Darker and with much less yellowish buffy suf 

 fusion throughout than in S. occidentale; white markings larger and 

 clearer white. 



Description of type.- Light markings as in S. occidentale but larger, 

 clearer 'white and much more distinct; main color on top and sides of 

 head, neck, body and underparts dark sepia brown, contrasting strongly 



