Step 2B

Key to Families of Anura (Frogs and Toads)

Choose the description that best fits the animal of interest.
If none fit go back to step one.

• A.     pupil, no external eardrum, males have external copulatory organ ("tail"), no dorsolateral ridges, British Columbia only
• Leiopelmatidae (Tailed Frogs) - formerly Ascaphidae
• B.     vertical pupil, small external eardrum, many small warts but no large parotoid glands, one black horny 'spade' under edge of each hind foot, no dorsolateral ridges, Western Canada only
• Scaphiopodidae (Spadefoots)
• C.     squat, relatively short legs, pupil never vertical, external eardrum, rough warty skin, large parotoid glands, two hard projections on each hind foot, one larger than the other, no dorsolateral ridges
• Bufonidae (Toads)
• D.     small, slim-waist, relatively long legs, pupil never vertical, external eardrum, may have enlarged toe pads, no parotoid glands, no dorsolateral ridges, no larger than 6 cm body length
• Hylidae (Treefrogs)
• E.     robust body, pupil never vertical, prominent external eardrum, no enlarged toe pads, no parotoid glands, well developed webs on hind feet, may have dorsolateral ridges
• Ranidae (True Frogs)