MYOTIS. 579 



tragus, 7.5-8.3. Skull: occipito-nasal length, 12; Hensel, n; zygo- 

 matic width, 8; interorbital constriction, 4; length of upper molar 

 series, 4; length of mandible, angle to symphysis, 10; length of lower 

 molar series, 5. 



a. jaliscensis (Myotis), Menegaux, Bull. Mus. Hist. Nat., Paris, 



1901, p. 321. 

 JALISCO BROWN BAT. 



Type locality. Vicinity of Lake Zacoalco, State of Jalisco, Mexico. 



Genl. Char. Larger than M. calif onticiis, with longer forearm 

 and third finger. 



Color. Upper parts brown, becoming grayish on the belly, and 

 red near anal region. 



Measurements. Total length, 82; tail, 32-35; tibia, 16-17; foot, 

 7; forearm, 42; third finger, 71; thumb, 5; ear, 12-14; width of ear, 

 9; tragus, 7.8. Skull: total length, 16; length of braincase, 9; width 

 7; interorbital constriction, 3.5. 



b. m-exicanus (Vespertilio), Sauss., Rev. Mag. ZooL, 2me Se"r., 



xii, 1860", p. 282. 

 LITTLE MEXICAN BAT. 



Type locality. Unknown. 



Geogr. Distr. States of San Luis Potosi, Michoacan, and Oaxaca, 

 Mexico; range unknown. 



Genl. Char. Larger and darker than M. calif ornicus. 



Color. Above yellowish brown, paler beneath. 



Measurements. Total length, 81.5; tail vertebra?, 38; tibia, 14.2; 

 foot, 5.9; forearm, 34.1; thumb, 4.4; longest finger, 60; ear from 

 meatus, 14; width of ear, 9.6; tragus, 7.2. 



c. pallidus (Myotis}, Stephens, Proc. Biol. Soc. Wash., xni, 



1900, p. 153. Elliot, Syn. N.-Am. Mamm., 1901, p. 405. 

 PALE BAT. 



Type locality. Vallecito, San Diego County, California. 



Geogr. Distr. Lower California, Mexico, into southern California. 



Genl. Char. "Size small, wings short, wing membrane thin and 

 light; ears small; general appearance delicate." 



Color. "Light ochraceous buff or brownish cream buff; below dull 

 white; basal part of pelage above and below blackish." 



Measurements. "Total length, 80; expanse, 208; tail vertebrae, 

 42; ear, n ; thumb, 4; forearm, 30; tibia, 15." (Stephens, 1. c.) 



d. durangae (Myotis}, Allen, Bull. Am. Mus. Nat. Hist., 1903, 

 p. 612. 



