There are rotund, short-legged frogs in several families (Nomura et al. 2009) that spend the majority of their time underground but emerge with seasonal rains to breed. Microhylid frogs that lay aquatic eggs commonly behave in this way, and the tadpoles are suspension feeders with depressed bodies, a reduced oral apparatus without keratinized mouthparts, lateral eyes, and a midventral spiracle. The nonbreeding biologies of burrowing frogs are poorly known, but Nasikabatrachus (Zachariah et al. 2012)