Tear-shaped bodies, very narrow mouths; mostly fossorial or terrestrial burrowers, but some arboreal ecomorphs; axillary or glued amplexus; firmisternal pelvic girdle; some symbionts with tarantulas, only family to exhibit froglet transport
Terrestrial burrowing, aquatic, or fossorial ecomorphs; Inguinal amplexus; arciferal pelvic girdle; true mouth brooding genera
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