Overview

Distribution

Range Description

This species is found in Orissa, India. It has been documented from only two locations, the type locality of Barkuda Island, Chilka Lake, Ganjam District and adjacent Nandan Kanan Biological Park, Cuttak District (Das 1999).
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Continent: Asia
Distribution: India (Orissa: Chilka Lake)  
Type locality: Barkuda I., Chilka Lake, Madras Pres.
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Source: The Reptile Database

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species lives in the semi-evergreen forests of the low hills in Orissa. It burrows in loose earth around the roots of trees and is insectivorous and nocturnal (Sharma 2002).

Systems
  • Terrestrial
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
DD
Data Deficient

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Das, I.

Reviewer/s
Böhm, M., Collen, B. & Ram, M. (Sampled Red List Index Coordinating Team)

Contributor/s
De Silva, R., Milligan, H.T., Wearn, O.R., Wren, S., Zamin, T., Sears, J., Wilson, P., Lewis, S., Lintott, P. & Powney, G.

Justification
Barkudia insularis has been assessed as Data Deficient because it is known from only two records. Threats to the habitat are present, however, the impacts of these threats on the species are unknown. Further research on the distribution and threats to this species is needed before a more accurate assessment of conservation status can be made.

History
  • 1996
    Data Deficient
  • 1994
    Rare
    (Groombridge 1994)
  • 1990
    Rare
    (IUCN 1990)
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Population

Population
There is no population information available for this species.

Population Trend
Unknown
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Threats

Major Threats
It is unknown whether this species is being impacted by any major threats, however, it may be affected by habitat loss. The forests in Orissa are very fragmented, as there has been extensive deforestation for fuel-wood and to clear land for agriculture and settlements (WWF 2001).
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Management

Conservation Actions

Conservation Actions
There are no species-specific conservation measures in place for this species. Further research on the distribution and threats to this species is needed.
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Wikipedia

Barkudia insularis

Map of lake Chilka.

Barkudia insularis is a limbless lizard which was described in 1917 by Nelson Annandale and rediscovered in the wild in 2003. Little is known about the species but it is believed to be found only in the mangrove habitats near Barkud Island in Chilka Lake, Odisha, India.[1] The lizard looks like a large earthworm and lives in the subsoil and probably feeds on small arthropods.

The holotype was found in loose earth near the roots of a banyan tree of Badakuda island of Chilika lagoon in 1917. The most recent report of the species is from 2003.

Taxonomic description[edit source | edit]

Barkudia (Annandale, Rec. Ind. Mus. xiii, 1917 p. 20 - type species insularis) is characterised by the palatine bones not meeting on the mid-line of the palate, which is toothless; nostril between the nasal and the rostral in an emargination of the latter; supranasals present; pre-frontals and frontoparietals absent; body elongated; no limbs;

Barkudia insularis has the snout depressed, obtusely pointed, projecting strongly beyond the labial margin; rostral large, emarginate laterally to receive the nasal shield; supranasals large, in contact with one another and with the first labial; fronto-nasal broader than long, larger than the frontal; interparietal much larger than the frontal; parietals narrow, obliquely placed, in contact with one another behind it; 3 supraoculars, the first entering the supraciliarly margin, the first two in contact with the frontal; 1 large supraciliary in the angle formed by the 3 suboculars; nasal shield comparatively large, the nostril at its anterior extremeity; 1 large loreal; a preocular; lower eyelid composed of 2 or 3 opaque scales; upper eyelid vestigial; 4 supralabials, the third below the eye; ear-opening minute; a singly azygous postmenta; body elongate with 140 ventral scales between the post-mental and pre-anal plates; 20 smooth scales round the mid body. Tip of the tail blunt and not much narrower than the base of the tail.

Light brown above, each dorsal scale with a central dot; altogether thee form 12 or 14 longitudinal lines down the back and along the tail; lower parts whitish; top of head clouded with brown. The type was dug from loose earth at the root of a banyan tree. A second was seen in the same locality by Frederic Henry Gravely in the rainy season of 1919. It burrowed rapidly into the ground.[2]

References[edit source | edit]

  1. ^ Behera, P.K. ECOTECH EDUCATION AND ECOSYSTEM CONSERVATION OF THE LAKE CHILIKA, ORISSA.. 
  2. ^ Smith, M. A. 1941 Fauna of British India. Reptilia and Batrachia. p. 352-353

Notes[edit source | edit]

  • World Conservation Monitoring Centre (1996). Barkudia insularis. 2006. IUCN Red List of Threatened Species. IUCN 2006. www.iucnredlist.org. Retrieved on 12 May 2006.
  • Annandale, N. 1917 Rec.Ind. Mus. 13: 20
  • Biswas, S. or Acharjyo, L.N. (1979) A Note on the Distribution of Barkudia insularis, a Rare Limbless Lizard from Orissa J. Bombay Nat. Hist. Soc. 76: 524-525
  • Das, Indraneil; Dattagupta, Basudeb 1997 Rediscovery of the holotypes of Ophisops jerdoni Blyth, 1853 and Barkudia insularis Annandale, 1917. Hamadryad 22 (1): 53-55
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