Uropeltis Ceylanica
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:''Common names: Ceylon earth snake, Cuvier's shieldtail, Kerala shieldtail.'' ''Uropeltis ceylanica'' is a
species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of nonvenomous shieldtail snake in the
family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Uropeltidae The Uropeltidae, also known Common name, commonly as the shieldtails or the shield-tailed snakes, are a Family (biology), family of primitive, nonvenomous, burrowing snakes native to peninsular India and Sri Lanka. The name is derived from the Gr ...
. The species is
endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to the Western Ghats of
South India South India, also known as Dakshina Bharata or Peninsular India, consists of the peninsular southern part of India. It encompasses the Indian states of Andhra Pradesh, Karnataka, Kerala, Tamil Nadu, and Telangana, as well as the union territo ...
. No
subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...
are currently recognized as being valid, but the presence of several synonyms, many recently resurrected, calls for further taxonomic studies of this species complex. It is a burrowing snake with a pointy head equipped to penetrate the soil. It has a thick tail which looks as if it has been cut at an angle. In Kerala it's called ''iru thala moori'', which means two headed organism, as the tail end looks like another head. It primarily eats earth worms.


Geographic range

''U. ceylanica'' is found in the Western Ghats of southern
India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
from
Goa Goa () is a state on the southwestern coast of India within the Konkan region, geographically separated from the Deccan highlands by the Western Ghats. It is located between the Indian states of Maharashtra to the north and Karnataka to the ...
, Castle Rock southwards to
Travancore The Kingdom of Travancore ( /ˈtrævənkɔːr/), also known as the Kingdom of Thiruvithamkoor, was an Indian kingdom from c. 1729 until 1949. It was ruled by the Travancore Royal Family from Padmanabhapuram, and later Thiruvananthapuram. At ...
(
Agasthyamalai Agastyaarkoodam is one of the peaks in the Western Ghats of Tirunelveli District of Tamil Nadu, India. This peak is a part of the Agasthyamala Biosphere Reserve which lies on the border between the Indian states of Tamil Nadu, Tirunelveli ...
) near
Trivandrum Thiruvananthapuram (; ), also known by its former name Trivandrum (), is the capital of the Indian state of Kerala. It is the most populous city in Kerala with a population of 957,730 as of 2011. The encompassing urban agglomeration populati ...
. The type locality given as "Ceylan"— is a mistake, since this species has never been found in
Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...
.


Description

The dorsum of ''U. ceylanica'' is brown or blackish brown; sometimes patterned with spots or streaks. The venter is yellowish; some specimens have dark brown spots or are entirely brown. The ventral side of the tail is brown or black in the middle, and yellow on the sides. Adults may attain a total length (including tail) of . The
dorsal scales In snakes, the dorsal scales are the longitudinal series of plates that encircle the body, but do not include the ventral scales. Campbell JA, Lamar WW (2004). ''The Venomous Reptiles of the Western Hemisphere''. Ithaca and London: Comstock Publis ...
are arranged in 17 rows at midbody (in 19 rows behind the head). The
ventrals In snakes, the ventral scales or gastrosteges are the enlarged and transversely elongated scales that extend down the underside of the body from the neck to the anal scale. When counting them, the first is the anteriormost ventral scale that cont ...
number 120-146; the
subcaudals In snakes, the subcaudal scales are the enlarged plates on the underside of the tail.Wright AH, Wright AA. 1957. Handbook of Snakes. Comstock Publishing Associates (7th printing, 1985). 1105 pp. . These scales may be either single or divided (pair ...
number 8-12. The snout is rounded. The rostral is one-fourth the length of the shielded part of the head. Portions of the rostral are visible from above and shorter than its distance from the
frontal Front may refer to: Arts, entertainment, and media Films * ''The Front'' (1943 film), a 1943 Soviet drama film * ''The Front'', 1976 film Music * The Front (band), an American rock band signed to Columbia Records and active in the 1980s and e ...
. Nasals are in contact with each other behind the rostral. The frontal is slightly longer than it is broad. The diameter of the eyes is more than half the length of the ocular shield. The total length of the snake is 21 to 29 times the diameter of the body. The ventrals are twice as large as the contiguous scales. The end of tail is flat dorsally, obliquely truncated, with strongly
keeled scales Keeled scales refer to reptile scales that, rather than being smooth, have a ridge down the center that may or may not extend to the tip of the scale, Campbell, J. A., Lamar, W. W. (2004). ''The Venomous Reptiles of the Western Hemisphere''. Ithac ...
which are bi-, tri-, or quadricarinate. It has a terminal
scute A scute or scutum (Latin: ''scutum''; plural: ''scuta'' "shield") is a bony external plate or scale overlaid with horn, as on the shell of a turtle, the skin of crocodilians, and the feet of birds. The term is also used to describe the anterior po ...
with a transverse ridge and two points. Boulenger, G.A. (1893). ''Catalogue of the Snakes in the British Museum (Natural History). Volume I., Containing the Families...Uropeltidæ...'' London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xiii + 448 pp. + Plates I–XXVIII. (''Silybura brevis'', pp. 158–159).


References


Further reading

* Beddome, R.H. (1863). "Descriptions of New Species of the Family Uropeltidæ from Southern India, with Notes on other little-known Species". ''Proceedings of the Zoological Society of London'' 1863: 225–229 + Plates XXV–XXVII. *Beddome, R.H. (1863). "Further Notes upon the Snakes of the Madras Presidency; with some Descriptions of New Species". ''Madras Quarterly Journal of Medical Science'' 6: 41–48. eprint: (1940). ''J. Soc. Bibliogr. Nat. Sci., London'' 1 (10): 306–314 *Beddome, R.H. (1864). "Descriptions of New Species of the Family Uropeltidæ from Southern India, with Notes on other little-known Species". ''Annals and Magazine of Natural History, Third Series'' 13: 177–180. *Beddome, R.H. (1886). "An Account of the Earth-Snakes of the Peninsula of India and Ceylon". ''Ann. Mag. Nat. Hist., Fifth Series'' 17: 3–33. * Cocteau, J.T. (1833). "''Sur le genre de reptiles ophidiens nommé'' Uropeltis ''par Cuvier, et description d'une espèce de ce genre''". ''Magasin de Zoologie Guérin, Paris, Class. III'', seven unnumbered pages + Plate 2. (in French). * Cuvier, (1829). ''Le Règne Animal Distribué, d'après son organisation, pour servir de base a l'histoire naturelle des animaux et d'introduction a l'anatomie comparée. Nouvelle édition, revue et augmentée. Tome II.'' Paris: Déterville. xv + 406 pp. (''Uropeltis ceylanicus'', new species, p. 76). (in French). * Ganesh, S.R.; Aengals, R.; Ramanujam, E. (2014). "Taxonomic reassessment of two Indian shieldtail snakes in the ''Uropeltis ceylanicus'' species group (Reptilia: Uropeltidae)". ''Journal of Threatened Taxa'' 6''; (1): 5305–5314. * Gower, D.J.; Captain, A.; Thakur, S.S. (2008). "On the taxonomic status of ''Uropeltis bicatenata'' (GÜNTHER) (Reptilia: Serpentes: Uropeltidae)". ''Hamadryad'' 33 (1): 64–82. * Gray, J.E. (1858). "On a new Genus and several New Species of Uropeltidæ, in the Collection of the British Museum". ''Ann. Mag. Nat. Hist., Third Series'' 2: 376–381.


External links

* {{Taxonbar, from=Q3005231 Uropeltidae Reptiles of India Endemic fauna of India Reptiles described in 1829 Taxa named by Georges Cuvier