44 Hollister — New Bats.from the Sovthwestern United States. 



Bfmarhs. — Only two specimens of this bat are at hand. They were shot 

 in the dense Cottonwood bottomlands of the Colorado River JNIay 14 and 

 15, 1905. The topotype is preserved in alcohol. 



Myotis baileyi sp. nov. 



Type from base of AVhite Mountains (7,500 ft.) near Ruidoso, New 

 Mexico. No. 125,787 U. S. National Museum, Biological Survey Collec- 

 tion. 9 adult, in alcohol. September 10, 1902. N. Hollister. Original 

 No. 195. 



General characters. — Nearest to 31. velifer but smaller; forearm shorter; 

 tragus very broad at base and sharply pointed ; calcar about equal to free 

 border of interfemoral memljrane, which is thinly haired; wing from base 

 of toes. Larger than either peninsularis or occuUus, with larger ears and 

 skull. 



Color. — Back sepia; underparts smoke gray; face blackish; ears and 

 ' membranes black. 



Shdl. — Like that of 31. velifer but smaller, with lower, flatter braincase. 

 Compared with peninsularis it is larger; braincase proportionately lower 

 with straighter sides. Much larger than in occultus and higher posteriorly. 

 Five out of the six known specimens, including the type, lack the middle 

 upper premolar; teeth otherwise essentially as in velifer. 

 \ 3Ieasurements of type. — Forearm, 40.3; tibia, 17.9; foot, 9.1; ear, 14.9; 

 tragus, 6.5; thumb, 0.4. Skull: Condylobasal length, 10.1; zygomatic 

 breadth, 10; breadth of braincase, 7.8; interorbital constriction, 4.1; 

 maxillary toothrow, 6.1. 



i^ernar^s.— Besides three specimens from the type locality, only three 

 others have come to light; these w^re collected by Vernon Bailey and 

 Clarence Birdseye at Luna, Gila National Forest, New Mexico, September 

 6 and 7, 1908. 



