576 MYOTIS. 



Genl. Char. Similar to M. calif or nicus; foot larger, ear smaller. 



Color. Above clove brown; beneath light broccoli brown. 



Measurements. Total length, 68.5 ; tail vertebrae, 38.1 ; tibia, 13.9 ; 

 foot, 7.1; forearm, 34.2; thumb, 5; longest ringer, 58.5; ear from 

 meatus, 13.9; width of ear, 8.6; tragus, 7.6. Skull: occipito-nasal 

 length, ii ; zygomatic width, 5; width of braincase, 6; width of ros- 

 trum, 3.5; interorbital constriction, 3; length of mandible, 9; length 

 of upper molar series, 3.5 ; of lower molar series, 4. 



546. chiriquensis (Myotis), Allen, Bull. Am. Mus. Nat. Hist., 1904, 



P- 77- 

 CHIRIQUI BAT. 



Type locality. Boqueron, Chiriqui, Panama. 



Genl. Char. Size very small; pelage thick, soft, short; wing from 

 base of toes; uropatagium naked above, slightly hairy at extreme 

 base below; ears medium, rather pointed, deeply incised on outer 

 border. 



Color. Above very dark brown, paler beneath; basal two-thirds 

 of face plumbeous; beneath surface blackish; ears and membrane 

 dark brown. 



Measurements. Total length, 73; tail vertebrae, 30; tibia, 11.5; 

 foot, 6.5; forearm, 26; thumb, 4; third finger, metacarpal, 31; ear 

 from meatus, 10; tragus, 5. Skull: total length, 13.6; mastoid 

 breadth, 6.5. 



547. dominicensis (Myotis), Miller, Proc. Biol. Soc. Wash., xv, 1902, 



p. 243. 

 DOMINICAN COMMON BAT. 



Type locality. Island of Dominica. 



Genl. Char. Similar to M. nigricans, but smaller; facial line of 

 skull more abruptly elevated above level of rostrum. 



Color. Above uniform Prout's brown; beneath tinged with burnt 

 umber; hairs on back blackish at base; those of under parts slaty 

 black on proximal half. (Alcoholic specimen.) 



Measurements. Total length, 63; tail vertebras, 27; tibia, 12.4; 

 foot, 7; forearm, 32.4; first digit, 6.4; second digit, 28; third digit, 48; 

 fourth digit, 4; fifth digit, 37; ear from meatus, n; from crown, 8; 

 width of ear, 6. Skull: greatest length, 12.4; basal length, 11.2; 

 basilar length, 9.4; zygomatic breadth, 7.2; interorbital constriction, 

 3; mandible, 8.8; maxillary tooth row, exclusive of incisors, 5; 

 mandibular tooth row, 5. (Miller, 1. c.) 



548. yumanensis (Vespertilio), H. Allen, Mon. N. Am. Bats, 1864, 



p. 58. Elliot, Syn. N. Am. Mamm., 1901, p. 403. 



