Vol. XIV, pp. 169-175 September 25, 1901 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



DE8CKIPTI0XS OF A NEW GENUS AND ELEVEN 

 NEW SPECIES ANT) SUBSPECIES OF BIRDS 



FPvOM mp:xico. 



BY E. W. NELSON. 



The following def^criptions iirc Iciscd iijiou materinl in tho 

 Biological Survey collection and iiiaijily upon specimens ob- 

 tained during a recent trip to tlie peninsula of ^'ucatan l)v Mr. 

 E. A. (ioldinan and myself. I am indebted to ^Ir. Ko1)ei't 

 Ridgway and Dr. Clias. AV. Richmond, Curator and Assistant 

 Curator of Birds in the National Museum, for theii- usual kind 

 assistance during the ])reparation of this paper. 



All measurements are in millimetei-s. 



Crypturus sall^ei goldmani, new subspecies. Yucatan Tiiiamou. 



Tjipt' No. 107,71.'5, $ ad., U. S. National Museum, l^iolo<rical Survey 

 collection, from Chicken Itza. Yucatan, Mexico. Collected Feljruary 1, 

 1901. by E. W. Nelson and E. \. (ioldnian. 



Dislribiitiiin. — Yucatan. Mexico. 



Siibxjicrijir r/nir<irf( /-x. ~ $ . smaller than typical C. mlkfi \\\i\\ general- 

 ly paler coloration; l}acl< grayer: llie light transverse l^ars more strongly 

 marked and extending farther forward on back and wings: underparls 

 paler, more buffy (less rufous): 9- paler and more strongly and cxt(>n- 

 sively barred with light color on back and wings. 



Dime ndonn of type. — Wing l.)2: tail Ki: culmen 2*': tarsus 14. 



Remarks. — Tlie males of the i)resenl form difTer more from those of 

 C. Kcdlm Iwtb in size and color than do I he females. 



34— BiOL. Soc. Wash. Vol. XIV, 1901. (16y) 



