Lycodon rufozonatus

Lycodon rufozonatum is a species of snake in the family Colubridae. The species is native to East Asia. It is medium-sized, nocturnal, and is considered non-venomous. Two subspecies are recognised, one of which, L. r. walli, is restricted to the Ryukyu Archipelago.

Lycodon rufozonatum
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Genus: Lycodon
Species:
L. rufozonatum
Binomial name
Lycodon rufozonatum
(Cantor, 1842)
Subspecies
  • L. r. rufozonatum (Cantor, 1842)
  • L. r. walli Stejneger, 1907
Synonyms [1]

Etymology

The subspecific name, walli, is in honor of British herpetologist Frank Wall.[2] Lycodon comes from Greek words lykos (wolf) and odon (tooth).

Description

Lycodon rufozonatum typically grows to a total length (including tail) of around 70 centimetres (28 in), reaching up to 130 cm (51 in) in extreme cases.[3] The head is long and relatively flat, and somewhat separate from the neck. The medium-sized eyes bulge slightly and have vertical pupils. The ventral scales have a strong keel, while the dorsal scales are only faintly keeled; the scale count is typically 17:17:15, but can be up to 21:19:17.[3]

Geographic range

Lycodon rufozonatum is found across a large part of East Asia, from the Korean Peninsula in the north (and extending just into easternmost Russia) to northern Laos and Vietnam in the south; the bulk of its range in found in eastern China.[3] The continental populations are all placed in the nominate subspecies (L. r. rufozonatum); a second subspecies, L. r. walli, is found in the Ryukyu Archipelago of southern Japan.[4]

Behaviour and ecology

Lycodon rufozonatum lives in a wide variety of habitats; it can be found from near sea level to as high as 2,000 metres (6,600 ft), and is most common near river plains.[3] It is usually found on the ground, but is occasionally seen swimming in streams.[3] It is nocturnal, feeding on fish, frogs, lizards, snakes and young birds.[3] D. rufozonatum has a generally mild disposition, curling into a spherical mass with the head hidden when approached. Individuals can, however, be unpredictable, and some will bite readily.[3] There are very few clinical reports on the toxinology of D. rufozonatum bites, but the species appears to be non-venomous.[3] L. rufozonatum can harbour tapeworms of the genus Spirometra, and the consumption of raw meat from D. rufozonatum has led to cases of human sparganosis in Korea and Japan.[5]

Taxonomic history

The species was first described as "Lycodon rufo-zonatus " by Theodore Edward Cantor in an 1842 paper on the fauna of "Chusan" (Zhoushan, China) in the Annals and Magazine of Natural History.[6] Cantor included it among the "innocuous" (not venomous) species, and described it as "Brown, with numerous transversal crimson bands; the abdominal surface pearl-coloured, spotted with black on the tail".[6]

Common names

L. rufozonatum is known by several common names, including "Asian king snake",[7] "banded red snake", "red banded krait", "red banded odd-toothed snake" and "red-banded snake".[3]

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References
  1. Uetz, Peter; Hallermann, Jakob. "Lycodon rufozonatum (Cantor, 1842)". The Reptile Database. Retrieved September 6, 2012.
  2. Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Dinodon rufozonatus walli, p. 279).
  3. "Dinodon rufozonatum". Clinical Toxinology Resources. University of Adelaide. Retrieved September 6, 2012.
  4. Ananjeva, Natalia B. (2006). "Red-banded snake Dinodon rufozonatum (Cantor, 1840)". The Reptiles of Northern Eurasia: Taxonomic Diversity, Distribution, Conservation Status. Series faunistica. 47. Pensoft Publishers. p. 141. ISBN 9789546422699.
  5. Cook, Gordon Charles; Zumla, Alimuddin (2009). Manson's Tropical Diseases (22nd ed.). Elsevier Health Sciences. p. 1662. ISBN 9781416044703.
  6. Cantor, Theodore Edward (1842). "General features of Chusan, with remarks on the flora and fauna of that island". Annals and Magazine of Natural History. 1st series. 9 (59, 60): 361–371, 481–493. doi:10.5962/bhl.title.6704.
  7. Dieckmann,Simon; Norval, Gerrut; Mao, Jean-Jay (2010). "A description of an Asian king snake (Dinodon rufozonatum rufozonatum [Cantor, 1842]) clutch size from central western Taiwan" (PDF). Herpetology Notes. 3: 313–314.
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