Herpetology: Louisiana Frogs

Front 1

Scaphiopus holbrookii

Back 1

Eastern Spadefoot

Front 2

Scaphiopus hurterii

Back 2

Hurter's Spadefoot

Front 3

Bufo americanus

Back 3

American Toad

Front 4

Bufo fowleri

Back 4

Fowler's Toad

Front 5

Bufo nebulifer

Back 5

Gulf Coast Toad

Front 6

Bufo quercicus

Back 6

Oak Toad

Front 7

Bufo terrestris

Back 7

Southern Toad

Front 8

Bufo velatus

Back 8

Woodhouse's Toad

Front 9

Acris crepitans

Back 9

Northern Cricket Toad

Front 10

Hyla avivoca

Back 10

Bird-Voiced Tree Frog

Front 11

Hyla chrysoscelis

Back 11

Cope's Gray Tree Frog

Front 12

Hyla versicolor

Back 12

Gray Tree Frog

Front 13

Hyla cinerea

Back 13

Green Treefrog

Front 14

Hyla femoralis

Back 14

Pine Woods Tree Frog

Front 15

Hyla gratiosa

Back 15

Barking Treefrog

Front 16

Hyla squirella

Back 16

Squirrel Treefrog

Front 17

Pseudacris crucifer

Back 17

Spring Peeper

Front 18

Pseudacris ornata

Back 18

Ornate Chorus Frog

Front 19

Pseudacris foquettei

Back 19

Cajun Chorus Frog

Front 20

Pseudacris streckeri

Back 20

Strecker's Chorus Frog

Front 21

Rana areolata

Back 21

Southern Crawfish Frog

Front 22

Rana catesbeiana

Back 22

American Bullfrog

Front 23

Rana clamitans

Back 23

Bronze Frog

Front 24

Rana grylio

Back 24

Pig Frog

Front 25

Rana palustris

Back 25

Pickerel Frog

Front 26

Rana sevosa

Back 26

Dusky Gopher Frog

Front 27

Rana sphenocephala

Back 27

Southern Leopard Frog

Front 28

Gastrophryne carolinensis

Back 28

Eastern Narrow-Mouthed Toad

Front 29

Eleutherodactylus custignathoides

Back 29

Rio Grande Chirping Frog

Front 30

Eleutherodactylus planirostris

Back 30

Greenhouse Frog

Front 31

Parotoid glands but no cranial ridges

Back 31

Scaphiopus holbrookii

Front 32

Bump or "boss" on top of head b/w eyes

Back 32

Scaphiopus hurterii

Front 33

Parotoid glands separate from cranial ridge or joined with small spur

Back 33

Bufo americanus

Front 34

Dorsum generally unpatterned with faint dorsal stripe

Back 34

Bufo americanus

Front 35

When present, dark dorsal spots have 1 or 2 warts/spot

Back 35

Bufo americanus

Front 36

Two yellow lines from eye to vent form hourglass shape

Back 36

Scaphiopus hurterii

Front 37

Elongate parotoid glands usually touch post‐orbital ridges

Back 37

Bufo fowleri

Front 38

Dark brown/black dorsal spots contain three or more warts per spot

Back 38

Bufo fowleri

Front 39

Narrow cranial crests are low and sharply ridged

Back 39

Bufo fowleri

Front 40

Well developed, yellow cranial crests form “Y” shape

Back 40

Bufo nebulifer

Front 41

Very small (up to 1.25 inches in length)

Back 41

Bufo quercicus

Front 42

Red to red‐brown warts

Back 42

Bufo quercicus

Front 43

High cranial crests with knoblike enlargements at posterior ends of interorbital crests

Back 43

Bufo terrestris

Front 44

Similar in appearance to B. fowleri

Back 44

Bufo velatus

Front 45

Completely terrestrial treefrog

Back 45

Acris crepitans

Front 46

Dark triangle or “V” usually present between eyes

Back 46

Acris crepitans

Front 47

Medium‐sized treefrog (up to 2‐inches in SVL), Smooth skin, Light spot below each eye

Back 47

Hyla avivoca

Front 48

Large treefrog (reaches 2.4 inches in SVL)
• Skin granular and warty
• Dorsum with large, irregular dark blotches
• Yellow or yellow‐orange thighs
• Light spot under each eye

Back 48

Hyla chrysoscelis

Front 49

• Similar in appearance to H. chrysoscelis
• Reaches 2.4 inches in SVL
• Gray, brown or green with large, irregular blotches
• Back of thighs yellow or yellow‐orange
• Light spot beneath each eye

Back 49

Hyla versicolor

Front 50

• Medium green frog (reaching 2.5 inches SVL)
• Golden flecks scattered on the dorsum
• White stripe from upper lip to groin
• Light stripe on posterior edge of foot and lower hind limb
• Appear gray when cold or shaded

Back 50

Hyla cinerea

Front 51

• Small treefrog (up to 1.75 inches in SVL)
• Color variable
• Have long, dark blotches on dorsum that are often fused
• Have white, yellow, or orange spots on the back of each
thigh

Back 51

Hyla femoralis

Front 52

• Biggest Louisiana treefrog (up to 2.75 inches in SVL)
• Granular skin with many rounded spots with a darker border
• Background color highly variable

Back 52

Hyla gratiosa

Front 53

• Small treefrog (maximum length = 1.7 inches SVL)
• Brown to green in color with extremely variable small, dark spots on the dorsum
• Faint, wavy line runs from upper lip to side of body

Back 53

Hyla squirella

Front 54

• Small treefrog (up to 1.4 inches in SVL)
• Brown with a dark mark between the eyes
• Dorsum usually has an “X”

Back 54

Pseudacris crucifer

Front 55

• Small, stocky treefrog (up to 1.45 inches SVL)
• Toe discs small (only slightly larger than toe)
• Dark triangular spot sometimes present between eyes
• Most individuals have a mask covering eyes
• Groin is yellow

Back 55

Pseudacris ornata

Front 56

• Small (up to 1.4 inches SVL)
• Color and pattern variable with three, longitudinal stripes
• Light stripe on upper lip and dark stripe from lip through eye and down to groin
• Yellow groin

Back 56

Pseudacris foquettei

Front 57

• Stout, up to 1.8 inches in SVL
• Stocky forearms, like a toad
• Dark stripe through eye and dark spot below eye
• Dark triangle between eyes
• Dark dorsal and lateral irregular spots on body
• Yellow groin

Back 57

Pseudacris streckeri

Front 58

• Large (up to 3.8 inches SVL), shy frog
• Skin from warty to creased to smooth
• Prominent, dull‐colored dorsolateral ridges
• Dorsum with blocky to circular brown spots
• Upper lip heavily mottled
• Ventral surface unmarked and light colored
• Groin and thighs yellow
• Generates a foul‐smelling secretion

Back 58

Rana areolata

Front 59

• Largest frog in North America (up to 8 inches SVL)
• Large tympanum
• Green to brown dorsum with black dots
• Ventral surface white or yellow and usually mottled
• Dorsolateral ridge wraps around part of tympanum

Back 59

Rana catesbeiana

Front 60

• Medium sized (up to 3.5 inches SVL)
• Dosrum from brown to bronze with dark spots
• Dorsolateral ridges run down 3⁄4 of back
• Ventral surface white

Back 60

Rana clamitans

Front 61

• Large (up to 6.4 inches SVL)
• Dorsum from blackish brown to copper‐green
• Venter white to yellow and darkly mottled
• Dorsolateral ridges run down 3⁄4 of back and encircle part
of tympanum
• Head pointed

Back 61

Rana grylio

Front 62

• Medium‐sized (up to 3.44 inches SVL), spotted frog
• Square brown or black spots on the dorsum arranged in two adjacent rows
• Dorsolateral ridges run all the way down the back
• Ventral surface yellow or orange
• No light spot on tympanum
• Skin secretion irritating to some people

Back 62

Rana palustris

Front 63

• Medium, stocky frog with dorsolateral ridges
• Dark brown or black dorsum covered in dark spots and warts
• Venter heavily pigmented
• Probably extinct from Louisiana

Back 63

Rana sevosa

Front 64

• Medium‐sized frog (up to 5 inches SVL)
• Dorsum with irregular brown or black, rounded spots
• Light spot in center or tympanum

Back 64

Rana sphenocephala

Front 65

Secretive, small, round toad with short limbs and a pointed head
• Distinct skin fold across the back of the head
• Toes unwebbed
• Males have a dark throat patch. Females do not.
• Broad, mid‐dorsal stripe bordered by lighter stripes (but sometimes obscured by dark blotches)

Back 65

Gastrophryne carolinensis

Front 66

• Small (up to 1 inch SVL)
• Skin smooth
• Body flat and elongate with pointed snout
• Dark line from nostril through eye

Back 66

Eleutherodactylus cystignathoides

Front 67

Very small (15‐17.5 mm SVL)
• Two patterns occur: striped with longitudinal stripes, or mottled with irregular light and dark markings
• Brown skin with red undertones
• Eyes have a red tint
• Long, slender toes with tubercles at the joints

Back 67

Eleutherodactylus planirostris