Amphiesma vibakari

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Amphiesma vibakari
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Genus: Amphiesma
Species: A. vibakari
Binomial name
Amphiesma vibakari
(H. Boie, 1826)[1]

Amphiesma vibakari, commonly referred to as the Asian keelback, is a species of colubrid snake, which is endemic to Asia.

Geographic range[edit]

It is found in northeastern China, Japan (Honshu, Kyushu, Shikoku), Korea, and Russia (Amur Oblast, Khabarovsk Krai, Primorsky Krai).[3]


Amphiesma vibakari is a small snake, growing to a maximum total length of 44 cm (17 14 in), with a tail 10 cm (3 78 in) long.

Dorsally it is olive or reddish brown, with small blackish spots. Some specimens may have a dark olive or blackish vertebral stripe. The upper labials are yellow, with black sutures. On each side of the nape of the neck there is a yellow dark-edged diagonal streak, these two streaks converging posteriorly. Ventrally it is yellow, with a series of brown dots or short lines at the outer ends of the ventral scales.

Dorsal scales strongly keeled (except outer row), arranged in 19 rows at midbody. Ventrals 127-151; anal plate divided; subcaudals divided 59-79.[4]


  1. ^ ITIS (Integrated Taxonomic Information System).
  2. ^ The Reptile Database.
  3. ^ The Reptile Database.
  4. ^ Boulenger, G.A. 1893. Catalogue of the Snakes in the British Museum (Natural History). Volume I., Containing the Families...Colubridæ Aglyphæ, Part. Trustees of the British Museum (Natural History). London. xiii + 448 pp. + Plates I.-XXVIII. (Tropidonotus vibakari, pp. 221-222.)

Further reading[edit]

  • Boie, H. 1826. Merkmale eineger japanischer Lurche. Isis von Oken 19: 203-216. (Tropidonotus vibakari, p. 207.)