June, 1903. A List of .Mammals — Elliot. 229 



interorbital constriction greater, rostrum longer; palate narrower; 

 molars larger; coronoid process much higher above angle of man- 

 dible; tragus long, slender, pointed. 



Color. Above, dark wood brown; beneath, very pale broccoli brown; 

 ears, feet, and membranes black. 



Measurements. Total length, 88; tail, 40; foot, 7; ear, 14; width of 

 ear, 10; Coll. meas'ts: forearm, both bones broken; longest finger, 

 60; thumb and claw, 5; tragus, 7; (skin). Skull: occipito-nasal length, 

 13; Hensel, 11; zygomatic width, 8.5; width of brain case, 7; height 

 of brain case at bullae, 4.5; length of rostrum, 6; palatal length, 6; 

 width across middle molars from outer edge, 5; length of upper 

 molar series, 3.5; length of mandible, 9.5; height at coronoid pro- 

 cess from angle, 4.5; length of lower molar series, 3.5. 



This bat is somewhat similar to M. californicus, but is larger in 

 all its measurements, and of a paler color both on upper and under 

 parts. The skull is quite different in shape and larger than that of 

 the species compared. Only three specimens were obtained, two 

 at La Grulla and one at St. Eulalia, high elevations amid the San 

 Pedro Martir Mountains. 



Myotis milled. 



Myotis milled. Elliot, Pub. Field Columb. Mus., 1903, iii., 

 p. 172, Zoology. 



2 Specimens: La Grulla. 



P1PISTRELLUS. 

 Pipistrellus hesperus. 



Pipistrellus hesperus. (H. Allen.) Mon. N. Am. Bats, 1861, p. 

 43. Elliot, Syn. N. Am. Mamm., 1901, p. 409. 



13 Specimens: 3 San Felipe, Gulf of California; 3 Santa Eulalia, 

 2 Santa Rosa, 2 Rosarito, 3 Parral, San Pedro Martir Mountains. 



This was apparently the most abundant species of bat met with, 

 and was generally distributed throughout the range. 



VESPERTILIO. 

 Vespertilio fuscus bernardinus. 



Vespertilio fuscus bernardinus. (Rhoads.) Proc. Acad. Nat. Scien., 

 Phil., 1901, p. 619. 



13 Examples: 1 La Grulla, 12 Parral, San Pedro Martir Moun- 

 tains. 



This is apparently the pale form of V. fuscus, separated by Mr. 

 Rhoads, 1. c. The only place it was numerous was at Parral. The 



