- Any of several toads of the family Pelobatidae, widely distributed over Europe, southern Asia, northern Africa, and North America, some of which are able to dig deep burrows easily by means of a horny projection on the side of the hind foot.锄足蟾：一种广泛分布于欧洲、南亚、北非和北美的锄足蟾科蟾蜍，有些种类能用后腿边上的角状凸起挖出很深的地洞