26 PROCEEDINGS OF THE ACADEMY OF [Jan., 



Nyctinomus mexicanus (Saussure). 



1860. M[olossus] mexicanus Saussure, Revue et Magasin de Zoologie, 2e s^r., 

 XII, p. 283. (Plateau and higher mountains of Central Mexico, — Cofre 

 de Perote (13,000 feet), Ameca and foot of Popocatepetl (8,500 feet) 

 specified. 



The name mexicanus is used provisionally for the Nyctinomus of cen- 

 tral and western Texas and southern New Mexico. Further study may 

 show that it is not identical with the central Mexican form, but as far as 

 can be judged by Saussure's measurements, closer relationship exists 

 with mexicanus than with cynoccphalus. The latter form is a smaller 

 animal, the average length of the forearm in five specimens from Tarpon 

 Springs, Fla., being 40.1 mm., while five specimens from New Mexico 

 and Texas average 42.7 mm. True hrasiliensis is, of course, a quite 

 different animal. Specimens have been examined from Mesilla, Donna 

 Ana comity, N. M.; Pecos, Reeves county; Helotes, Bexar county, and 

 San Diego, Duval county, Tex. 



BIRDS. 



The birds oljtained number 122 specimens, representing thirty-one 

 species, while ten others are added to the list which were seen but not 

 secured. These latter are marked with an asterisk. 



Under each species are given Mr. Rehn's field-notes relative to its 

 distribution, abundance, etc. 

 *Querquedula discors (Linn.). 



"(Jne observed in alkali stream, Laluz Canon, April 18." 

 *Callipepla squamata (Vig.). 



" Several observed near the mouth of Dry Canon, May 2 and 9." 

 Zenaidura macroura (Linn.). 



"Observed frequently April 16 to May 19. In the open country it 

 was most frequent about cultivated tracts, and in the canons could 

 almost always be looked for in the vicinity of water." 

 *Catliartes aura (Linn. ) ? 



" Seen on four occasions, April 18-29. ' ' 

 Dryobates scalaris bairdi (Malh.). 



"Found frequently in Dry Canon. It was comparatively wild, and 

 showed a decided preference for a peculiar species of cactus." 

 Chordeiles acutipennis texensis (Lawr.). 



"Found several times in the Larrea belt, and was apparent^ nesting 

 between the grease wood and mesquite bushes. All those seen were 

 flushed from the ground, but careful search failed to reveal the eggs. 

 Mav 2 to Mav 17." 



