Duttaphrynus melanostictus is commonly called Asian common toad, Asian toad, black-spectacled toad, common Sunda toad and Javanese toad. It is probably a complex of more than one toad species that is widely distributed in South and Southeast Asia. The species grows to about 20 cm long. The species breeds during the monsoons and the tadpoles are black.
An army of poisonous toads is marching into one of the world's last unspoilt wildernesses. Now conservationists want to drive them out. Nobody knows for sure how or when they first arrived, but for the last few years, millions of toxic toads have plagued eastern Madagascar. The Asian toads Duttaphrynus melanostictus first appeared between and , most likely in shipping containers, and have rapidly increased in number to about four million.
It is inches in length and is the largest native toad in the United States. It is olive green to dark brown in color. It has smooth, shiny skin covered in warts. Its belly is cream-colored, and it has one to two warts on the corners of its mouth and large raised warts on its rear legs.
The following information was supplied regarding data availability:. The raw data has been supplied as Supplemental Dataset Files. The effects of ice ages on speciation have been well documented for many European and North American taxa.