Trachischium laeve

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olive Oriental slender snake
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Genus: Trachischium
Species: T. laeve
Binomial name
Trachischium laeve
Peracca, 1904

Trachischium quiquelabialis Wall, 1911[1]

The olive Oriental slender snake (Trachischium laeve) is a species of colubrid snake.

Geographic range[edit]

It is found in India (western Himalayas) and Nepal.


The dorsum is uniform grayish brown. The throat, belly, underside of tail, and first row of dorsal scales are yellowish.

One preocular; one postocular; temporals 1+1. 5 upper labials, 3rd and 4th entering the orbit. Dorsal scales very smooth, shiny, without apical pits, in 13 rows. The male does not have any keels on the dorsal scales in the anal/basicaudal region. Ventrals 147-149; anal divided; subcaudals divided 33-39.

There are 17 maxillary teeth in a continuous series, the posterior slightly shorter than the anterior. The mandibular teeth are all the same length.

The measurements of the type specimens are as follows: a male, 337 mm (13 inches) SVL (Snout to Vent Length), tail 53 mm (2 inches); a female, 502 mm (19¾ inches) SVL, tail 70 mm (2¾ inches).


  1. ^ The Reptile Database.
  • Peracca, M.G. 1904. Nouvelles espèces d'Ophidiens d'Asie et d'Amerique, faisant partie de la collection du Museum d'histoire naturelle de Genève. Rev. Suisse Zool. 12: 663-668
  • Tillack, F. & Shah, K.B. 2002. Zur Verbreitung von Trachischium laeve PERACCA 1904 mit ersten Nachweisen für den zentralen Nepal-Himalaya (Reptilia: Serpentes: Colubridae). Sauria 24 (1): 39-44
  • Wall,F. 1911. A new snake from the Western Himalayas. J. Bombay nat. Hist. Soc. 21: 201
  • Sharma, R.C. Handbook of Indian Snakes. Akhil Books. New Delhi. 292 pp.