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, rr; 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., rgor, 
Pp. 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 (nec 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 (nec Max.), Mon. N. Am. Bats, 1893, p. 97. 
(note. ) 
LITTLE CALIFORNIA Bart. 
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. 
Measurements. Total length, 77.8-82; tail vertebra, 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; 
