Black softshell turtle

Species of turtle

The black softshell turtle or Bostami turtle, previously placed in genus Aspideretes, is a species of freshwater turtle found in India and Bangladesh. It was long believed to consist of inbred individuals of the Indian softshell turtle or the Indian peacock softshell turtle, but while it is a close relative of the latter, it is a distinct species. In the 1800s it was believed these turtles were brought from Iran to Chittagong shrine pond by Hazrat Bayezid Bostami. His turtles he had brought to this pond were treated as sacred and respected by the public. Previously declared extinct by the International Union for Conservation of Nature in 2002, these turtles were found still to exist in a temple's pond called the Hayagriva Madhava Temple located in Assam, and in Kalyan Sagar lake in Tripura Sundari Temple in Udaipur, Tripura, India. Through conservation methods and protection of the species, some of these turtles can be found today throughout the wild, and scientists and environmental biologists are continuing to work hard to preserve this endangered species and their natural habitat. Their mitogenome represents relatedness to 19 other species of the Testudines. When looking at the phylogenetic tree, Nilssonia nigricans is a sister group to Nilssonia formosa.

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