Common Name: Black Toad, Inyo Toad, and Deep Springs Toad
Scientific Name: Anaxyrus exsul
Family: Bufonidae – True Toad family
Locations: United States – California
Size: 1.75 – 3 inches (44.45 – 76.2 mm)
The Black Toad lives in the Deep Springs Valley in Inyo County in California, which explains some of its other names such as Deep Springs Toad and Inyo Toad. They live near springs, marshes, ponds, and bogs as they are more aquatic than most toad species.
Breeding takes place for the Black Toad in these water bodies from March into May. The male toads do not make a mating call to attract female toads due to the fact they don’t have vocal sacs. Mating takes place in shallow water. Once the female toad approaches, the male toad grasp the female toad from behind in the amplexus position. Next, the female toad starts to lay her eggs and the male toad fertilize them. The number of eggs the female toad lays is unknown. The eggs hatch in under 5 days into tadpoles. The larval phase of the toad doesn’t last long, between 3 and 5 weeks long.
The Black Toad is listed as Vulnerable to Extinction by the International Union for the Conservation of Nature (IUCN) Red List due to their small range. Their whole range is on the property of the Deep Springs Valley College. The college grazes their livestock in the area during the winter, when the toads are hibernating, to not disturb the toads. They also take care of the vegetation in the area and protect the streams.
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