578 MYOTIS. 



trum; interorbital constriction greater; rostrum longer; palate nar- 

 rower; molars larger; coronoid process much higher above angle of 

 mandible; 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 (Collr. Measrts.); forearm ? bones of both arms incomplete; 

 longest finger, 60; thumb and claw, 5; tibia, 15; tragus, 7 (dried 

 skin). Skull: occipito-nasal length, 13; Hensel, n; zygomatic width, 

 8.5 ; width of braincase, 7 ; height of braincase at bullae, 4.5 ; length of 

 rostrum, 6; palatal length, 6; width across middle molar from outer 

 edge, 5; length of upper molar series, 3.5; length of mandible, 9.5; 

 height at coronoid process from angle, 4.5; length of lower molar 

 series, 3.5. 



550. californicus (Vespertilio], Aud. & Bach., Journ. Acad. Nat. 

 Scien. Phil., 1842, p. 285. Elliot, Syn. N. Am. Mamm., 1901, 



P- 403- 



nitidus H. Allen, Proc. Acad. Nat. Scien. Phil., 1862, p. 247. 



oregonensis H. Allen, Mon. N. Am. Bats, 1864, p. 61. 



obscurus H. Allen, Proc. Acad. Nat. Scien. Phil., 1866, p. 281. 



volans H. Allen, Proc. Acad. Nat. Scien. Phil., 1866, p. 282. 



exilis H. Allen, Proc. Acad. Nat. Scien. Phil., 1866, p. 283. 



tenuidorsalis H. Allen, Proc. Acad. Nat. Scien. Phil., 1866, p. 283. 



yumanensis H. Allen (nee H. Allen, 1864), Proc. Acad. Nat. 

 Scien. Phil., 1866, p. 283. 



melanorhinus Merriam, N. Am. Faun., No. 3, 1890, p. 46. 



henshawi H. Allen, Mon. N. Am. Bats, 1893, p. 103. 



nigricans H. Allen (nee Max.), Mon. N. Am. Bats, 1893, p. 97. 



(note.) 

 LITTLE CALIFORNIA BAT. 



Type locality. California. 



Geogr. Distr. Lower California and State of Chihuahua, Mexico, 

 Texas, and Wyoming. 



Genl. Char. Size very small. Calcar very slender, lobule at 

 tip equal to free border of uropatagium, which is naked; ears reaching 

 beyond end of nose; wings from base of toes. Skull: superior outline 

 sloping gradually anteriorly to nasals; teeth feeble. 



Color. Above yellowish brown, beneath paler; fur plumbeous at 

 base. 



Measiirements. Total length, 77.8-82; tail vertebrae, 38.8-39; 

 tibia, 13.9-14.4; foot, 5.4-6; forearm, 31-32; thumb, 4-4.2; longest 

 finger, 55.4-58; ear from meatus, 12.9-14.2; width of ear, 9.9-10; 



