Argyrophis diardii, known commonly as Diard's blind snake, the Indochinese blind snake, the large blind snake, or the large worm snake, is a species of harmless snake in the family Typhlopidae. The species is endemic to South Asia and Southeast Asia.[1] There are two recognized subspecies.
A. diardii is distributed in India (Jalpaiguri-West Bengal, as far west as Dun Valley in Assam), Bangladesh, Myanmar, Thailand, Laos, Cambodia, Vietnam, the Malay Peninsula, Nias Island, Sumatra, Web Island (off northwest Sumatra), Bangka, and Borneo.[1]
Both the specific name, diardii, and the common name, "Diard's blindsnake", are in honor of French naturalist Pierre-Médard Diard.[4][5]
A. diardii was first described by Hermann Schlegel in 1839, as Typhlops Diardii.[4] The type locality of Schlegel's specimen was "Cochinchina [southern Vietnam]". Saint Girons (1972: 32) described it as "Cochinchina sans certitude [southern Vietnam without certainty]", and Hahn (1980: 56) as "East Indies".[2]
The preferred natural habitats of A. diardii are forest, shrubland, and grassland, but it has also been found in agricultural areas.[1]
A. diardii is heavy-bodied for a blindsnake. It has 22–25 scale rows around the body at midbody. The belly is distinctly flat.[3]
Two subspecies of Typhlops diardii are recognized as being valid, including the nominotypical subspecies:[3]
Argyrophis diardii, known commonly as Diard's blind snake, the Indochinese blind snake, the large blind snake, or the large worm snake, is a species of harmless snake in the family Typhlopidae. The species is endemic to South Asia and Southeast Asia. There are two recognized subspecies.