Species Description: Dinesh KP, Radhakrishnan C, Bhatta G 2008 A new species of Nyctibatrachus Boulenger (Amphibia: Anura: Nyctibatrachidae) from the surroundings of Bhadra Wildlife Santuary, Western Ghats, India. Zootaxa 1914:45-56.
© 2008 K.P. Dinesh (1 of 1)
The snout length is greater than the eye diameter, and the canthus rostralis is rounded; nostrils are nearer to the eye than the snout tip. Eyes are large and protruding, with rhomboidal pupils. The tympanum is indistinct. Parotoid glands, cephalic ridges, and co-ossified skin are all absent. The pineal ocellus is also lacking. Vomerine teeth are present on two ridges posterior to the choanae, with each ridge having three spinose teeth. Males have paired vocal sacs, nuptial excrescences covering the entire first finger dorsally, and prominent, highly conspicuous elongate femoral glands. Fingers are long, unwebbed and unfringed, and expand somewhat into discs that lack circummarginal grooves but have dorsal longitudinal grooves. Relative finger length is III>IV>II>I. Subarticular tubercles are present, with a single tiny round tubercle on fingers I and II and two tubercles on finger III and finger IV. Indistinct palmar tubercle and prepollex. Hindlimbs are moderately long, but tibia are relatively short. The relative length of toes is IV>III>V>II>I. Toe V has a distinct dermal fringe. Subarticular tubercles are moderate, simple, and oval-shaped. A short, spade-shaped inner metatarsal tubercle and inner tarsal ridge are present, while the outer metatarsal tubercle is absent. Supernumerary and tarsal tubercles are lacking. The tarsus bears sparse, small spine-like warts.
The dorsal coloration ranges from reddish-brown or reddish-black to brownish- black or dark black. The arm and the sides of the head have blackish brown mottling. The flanks are mottled yellow, with white spots on the raised fold edges. Ventral surfaces are translucent, except for the posterior part of the thighs, and the throat is translucent creamy white with glandular brown spots but without marbling. In males, each posterior thigh bears a raised, glossy, yellow femoral gland. Internal organs are visible through the pale, translucent venter. Hindlimbs are barred. A yellow dorsolateral band is present on each side. The upper iris is golden yellow. Male nuptial pads are light yellow.
Juveniles, 20.0-22.0mm, also exhibit the distinct fold pattern of three more distinct transverse dorsal folds, plus a dorsolateral fold and two lateral folds on each side. This contrasts with juveniles of N. major, which show less corrugation than adults of the same species. The dorsolateral stripes are white in juvenile N. dattatreyaensis.
Distribution and Habitat
Life History, Abundance, Activity, and Special Behaviors
The specific epithet refers to the type locality, Dattatreya Peeta, where a shrine to Lord Dattatreya is found.
Dinesh, K. P., Radhakrishnan, C., and Bhatta, G. (2008). ''A new species of Nyctibatrachus Boulenger (Amphibia: Anura: Nyctibatrachidae) from the surroundings of Bhadra Wildlife Sanctuary, Western Ghats, India.'' Zootaxa, 1914, 45-56.
Written by Kellie Whittaker (kwhittaker AT berkeley.edu), UC Berkeley
First submitted 2008-11-26
Edited by Kellie Whittaker (2008-12-01)
Species Account Citation: AmphibiaWeb 2008 Nyctibatrachus dattatreyaensis <http://amphibiaweb.org/species/7199> University of California, Berkeley, CA, USA. Accessed Aug 19, 2019.
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Citation: AmphibiaWeb. 2019. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 19 Aug 2019.
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