Nyctibatrachus dattatreyaensis (above), a new species of frog that is very wrinkled, has been discovered in India.
This is species has been described from the montane Shola forests of Dattatreya Peeta, Bhadra Wildlife sanctuary, Karnataka, southwestern India. This new frog is active during the night (like others in its genus).
Nyctibatrachus dattatreyaensis is a 40-mm-sized frog which differs from the other closely-related species in having a high degree of small corrugations on the body with prominent discontinuous lateral folds.
The new-found species have golden yellow eyes with black rhomboidal pupil and the upper surface of its body is reddish black to stone black with two yellow lateral bands.
“The dorsal color of the species camouflages with the ferruginous substratum of its habitat which is essential for its survival from predators,” the discoverers (Dinesh, KP, Radhakrishnan C. & Gopalakrishna Bhatta) note.
The finding has been published in the October 2008 edition of Zootaxa, the important zoology journal of New Zealand.
The discovery assumes significance as it has come in the “Year of the Frog” as declared by the Amphibian Ark – a joint effort of the World Association of Zoos and Aquariums (WAZA).
As per the current studies, the species is limited to the hilly ranges surrounding the Bhadra Wildlife Sanctuary in India and is not found anywhere else in the world.
The tiny night frog, Nyctibatrachus minimus (above), discovered in 2007, is related to the new 2008 discovery.
The genus Nyctibatrachus is endemic to Western Ghats and the species, named after Lord Dattatreya worshipped in Chikmagalur, is one among the 16 nominal species known in the world.
The new 2008 species’ characteristics, in summary, are the head wider than long; skin on the dorsum highly wrinkled with transverse corrugated folds; three discontinuous longitudinal folds, one dorsolaterally and two laterally; webbing on toes medium (3/4th); two yellowish bands on the dorsolateral area, prominent from sub-adult to adult stage; and femoral glands present.
Reference: Dinesh, KP, Radhakrishnan C & Gopalakrishna Bhatta (2008) A new species of Nyctibatrachus Boulenger (Amphibia: Anura: Nyctibatrachidae) from the surroundings of Bhadra Wildlife Sanctuary, Western Ghats, India, Zootaxa 1914: 45–56.
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