Reddish-brown to dark brown; immediately recognizable by its bizarre face, with folds of skin across chin from ear to ear, a feature unique among North American bats. Short tail projects from upper side of membrane. 2 3/8-2 5/8" (59-66 mm); tail 1" (27 mm).… read more
Only bat in eastern U.S. with noseleaf and no tail. Upperparts various shades of brown; underparts often grayish and usually somewhat paler than back. Often has pale facial stripes above and below eye. Average: 3 1/8" (80 mm).… read more
Gray or brownish above; paler below. Very long nose and tongue; small noseleaf. Large eyes. Tiny tail extends less than half length of tail membrane. 2 1/8-3 1/8" (55-78 mm); tail 1/4- 3/8" (6-10 mm).… read more
Usually gray-brown (sometimes dark brown) above; paler below. Surface of interfemoral membrane well furred. No tail. Short, rounded ears; small tragus. Large eyes. Thickened, M-shaped fold of skin over nostrils.… read more
Reddish brown on back; brownish on belly. Long nose has erect leaf-shaped projection on tip. Large eyes. No visible tail. 2 3/4-3 1/4" (69-84 mm).… read more
Grayish brown above; paler on shoulders and underparts. Long nose has leaf-like projection. Tongue long and protrusible. Medium-size ears. No tail. L 3-3 1/2" (76-88 mm).… read more
Grayish to dark brownish above, with fur nearly white at base; paler below. Large ears. Erect triangular flap on nose. 3 1/4-3 5/8" (84-93 mm); tail 1 1/4-1 5/8" (33-41 mm).… read more
Creamy to beige above; nearly white below. Big ears, separated at base. Wings and tail membrane essentially naked. 4 1/4-5 1/8" (107-130 mm); tail 1 3/8"-1 7/8" (35-49 mm).… read more
Pale gray or brown above; buff below. Wings and tail membrane naked. Enormous ears extend to middle of body when laid back; 2 large glandular lumps on nose. 3 1/2-4 1/4" (89-110 mm); tail 1 3/8"-2 1/8" (35-54 mm).… read more
Brown above, from light (in deserts) to dark (in forests), usually glossy; belly paler, with hairs dark at base; wings and tail membrane black and furless. Short, broad, rounded lobe in ear. 4 1/8-5" (106-127 mm); tail 1 5/8-2" (42-52 mm).… read more
Black above, with 3 large white spots on back (1 on each shoulder and 1 at base of tail); white below. Huge pink ears. 4 1/4-4 1/2" (107-115 mm); tail 1 3/4-2" (46-50 mm).… read more
Tawny above; hairs dark brown at base; underparts slightly paler. No fur on wings or membranes. Lobe in ear 5/8" (16 mm) long. White patches behind enormous ears; flap projects forward from base of ear. 4-4 5/8" (103-118 mm); tail 1 3/4-2 1/8" (46-55 mm).… read more
Nearly black, with silvery-tipped hairs on back, giving frosted appearance. Tail membrane lightly furred above. Short, rounded, naked ears. 3 5/8-4 1/4" (92-108 mm); tail 1 1/2-1 3/4" (37-45 mm).… read more
Red Bat
Lasiurus borealis
Males bright red to orange-red; females dull red to chestnut; both sexes frosted white on back and breast, with whitish patch on each shoulder. Ears small, rounded. Tail membrane furred above. 3 3/4-5" (95-126 mm); tail 1 3/4-2 3/8" (45-62 mm).… read more
Pale brown above, with tips of fur heavily frosted white; throat buffy yellow. Ears short and rounded, with black, naked rims. Tail membrane well furred above. 4-6" (102-152 mm); tail 1 3/4-2 1/2" (44-65 mm).… read more
Yellowish brown, washed with black above. Long, silky fur. Inner half of tail membrane well furred above. Rather large, pointed ears; lobe in ear broad below, tapering near tip. Average 4 1/2" (115 mm); tail 2" (51 mm).… read more
Mahogany brown, with slight silver frosting. Tail membrane furred above. Ears short and rounded; lobe in ear very short. 4 1/4-4 1/2" (108-114 mm); tail 1 3/4-2" (44-52 mm).… read more
Dull brown, with short, thick, woolly fur; hairs show little or no contrast in color between base and tip. Toes have long hairs extending beyond tips of claws. Skull has bony ridge extending along top. 3 1/4-3 7/8" (84-99 mm); tail 1 3/8-1 3/4" (36-45 mm).… read more
Dull fur, light to dark brown with yellowish or orangish cast above, paler below; base of fur blackish. Ears, wings, and tail membrane dark. Foot tiny. 2 7/8-3 3/8" (74-85 mm); tail 1 3/8-1 5/8" (36-42 mm).… read more
Long, glossy fur, light brown to brown. Ears dark, usually black; longer than in any other myotis; when laid forward extend 1/4"(7 mm) beyond nose. Lobe inside ear long and thin. 3-3 3/4" (75-97 mm); tail 1 3/8-1 3/4" (36-46 mm).… read more
A medium-size bat. Grayish or brownish; hairs uniform in color from base to tip. Ears relatively short; lobe in ear relatively short and rounded. Wing membrane attaches at ankle rather than base of toes. 3 1/8-3 3/4" (80-96 mm); tail 1 1/4-1 3/4" (32-44 mm).… read more
Glossy fur, light tan to golden brown above; buff to nearly white below. Black ears; black mask. Wings and tail membrane dark brown. 2 3/4-3 1/4" (71-82 mm); tail 1 1/8-1 1/4" (30-38 mm).a… read more
Variable shades of glossy brown above, with tips of hairs burnished brown; buff below. Lobe in ear rounded and short. Hairs on toes project beyond ends of toes. 31/8-3 5/8" (79-93 mm); tail 1 1/4-1 5/8" (31-40 mm).… read more
Dull brown; paler below, belly somewhat yellowish. Hairs bicolored, with base and tips contrasting. Ears long; when laid forward they protrude 1/8" (4 mm) beyond nose.… read more
Uniformly dark pinkish brown. Lips, nose, and forearms pinkish. Ears moderate in size; lobe in ear relatively short and rounded. Feet small; hairs on toes short and inconspicuous. 2 3/4-3 5/8" (71-91 mm); tail 1-1 3/4" (27-44 mm).… read more
Reddish brown or brown above; slightly paler below. Unique among myotises in having fringe of stiff hairs along edge of tail membrane. 3 1/8-3 3/4" (80-95 mm); tail 1 1/2-1 5/8" (37-42 mm).… read more
A large myotis. Pale brown in eastern part of range to black in western part. Fur dull; often has bare patch on midback and rather pale facial skin. Ears reach tip of nose when extended forward. 3 1/2-4 1/2" (90-115 mm); tail 1 5/8-1 7/8" (41-49 mm).… read more
A large myotis. Tawny or reddish to nearly black above; grayish to pale buff below. Underarm and tail membrane furred to elbow and knee. Ears short. 3 3/8-4" (87-103 mm); tail 1 1/2-1 7/8" (37-49 mm).… read more
Short, dull fur; variable shades of brown above, paler below; throat sometimes whitish. 3 1/4-3 7/8" (84-99 mm); tail 1 1/4-1 3/4" (32-45 mm).… read more
Reddish brown to dark brown above; tawny below. No fur on wings or tail membrane. Lobe in ear short and curved. 3 1/8-3 5/8" (78-93 mm); tail 1 3/8"-1 1/2" (35-37 mm).… read more
Pale yellow or grayish to reddish brown above. Belly whitish. Wings, tail membrane, ears, nose, and feet blackish. Lobe in ear short and blunt. 2 3/8-3 3/8" (60-86 mm); tail 1-1 1/4" (27-32 mm).… read more
Reddish to light brown. Hairs tricolored: dark at base, pale in middle, dark at tip. Lobe inside ear blunt. 3 1/8-3 1/2" (81-89 mm); tail 1 3/8-1 3/4" (36-45 mm).… read more
Brown, with white-tipped fur on belly. Wings and tail membrane naked. Large ears extend to middle of back when laid down. 2 large glandular lumps on nose. 3 5/8-4 1/8" (92-106 mm); tail 1 5/8-2 1/8" (41-54 mm).… read more
The largest bat in North America. Body sparsely furred; fur dark brown; hairs white at base. Enormous ears, joined at base, protrude over forehead. 5 1/2-7 1/4" (140-185 mm); tail 1 3/8-3 1/8" (35-80 mm).… read more
A large bat. Fur reddish brown, dark brown, or black; hairs white at base. Tail extends 1" (25 mm) or more beyond tail membrane. Ears joined at base; extend beyond tip of nose when laid forward. 5 1/8-5 5/8" (129-144 mm); tail 1 5/8-2" (43-50 mm).… read more
Dark brown or dark gray above, with hairs whitish at base. Ears separated at base. Tail extends beyond tail membrane for more than half its length. 3 1/2-4 1/4" (90-110 mm); tail 1 1/4-1 3/4" (33-44 mm).… read more
Gray above, sometimes with darker stripe down back; white below. Tail short, dark on top. L 4 1/3-5 3/4" (108-145 mm); T 1 5/8 -2 3/8" (40-60 mm).… read more
Bull buff above, reddish brown below; dark brown flippers; massive neck and forequarters; prominent, otterlike forehead. Cow all brown, one-third size of male, more cylindrical in shape. Male 8' 10"-10' 6" (2.7-3.2 m), female 6' 3"-7' 3" (1.9-2.2 m).… read more
A large seal, with proportionally small head. Uniformly grayish to yellowish. Bearded with tufts of long, flat bristles at sides of snout. Fore flippers squared off; third digit longer than others. Female slightly larger than male. 6'11"-7'11" (2.1-2.4 m).… read more
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