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Lycodon orientalis (HILGENDORF, 1880)

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Higher TaxaColubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Oriental Odd-tooth Snake
Russian: Восточный динодон 
SynonymOphites orientalis HILGENDORF 1880: 115
Ophites japonicus GÜNTHER 1880: 462
Dinodon japonicus — BOULENGER 1893: 363
Dinodon orientale — STEJNEGER 1907: 372
Dinodon orientale — MAKI 1931: 129
Dinodon orientalis — TORIBA 1991
Dinodon orientale — SZCZERBAK 2003
Lycodon orientalis — SILER et al. 2013 (by implication)
Dinodon orientale — WALLACH et al. 2014: 236 
DistributionJapan (Kyushu, Honshu). One find on the Shiashkotan Island in Russia (fide KHALIKOV, pers. comm.)

Type locality: Japan (“Tokyo” fide STEJNEGER 1907)  
Reproductionoviparous 
TypesHolotype: ZMB 9419, a 300 mm specimen (F. Hilgendorf, May 1874). 
DiagnosisDiagnosis. The portion of rostral visible from above scarcely as long as the suture between internasals; frontal as broad as long, and as long as its distance from rostral, much shorter than the interparietal suture; parietals large, nearly twice as long as frontal; loreal narrow, twice as long as high, entering the eye below prefrontal; no preocular; two postoculars; temporals 2+3; supralabials 8, fourth and fifth or third, fourth and fifth entering eye; scales in 17 rows, all of which are smooth on the anterior half of the body, but the median 5 to 7 rows on the posterior half of the body have a faint keel at the base of each scale; ventrals 199 to 214; distinctly angulate laterally; anal divided; subcaudals 68 to 75 pairs. (Maki 1931)


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CommentHilgendorf’s paper appears to have been published before GÜNTHER’s according to STEJNEGER 1907. 
References
  • Barbour, Thomas 1909. Notes on Amphibia and Reptilia from Eastern Asia. Proc. New England zool. Club 4: 53-78, 2 plates - get paper here
  • Boulenger, G.A. 1893. Catalogue of the snakes in the British Museum (Nat. Hist.) I. London (Taylor & Francis), 448 pp. - get paper here
  • Goris, R.C. & Maeda, N. 2004. Guide to the Amphibians and Reptiles of Japan. Krieger, Malabar, 285 pp.
  • Günther,C.A.L.G. 1880. Description of Ophites japonicus, a new snake from Japan. Ann. Mag. nat. Hist. (5) 6: 462 - get paper here
  • Hasegawa, Masami and Akira Mori 2023. Giant Snakes and Tiny Seabirds on a Small Japanese Island. In: Lillywhite & Martins, eds., Islands and snakes, vol. II. Oxford University Press, p. 100 ff - get paper here
  • Hilgendorf,F. 1880. Bemerkungen über die von ihm in Japan gesammelten Schlangen nebst Beschreibungen zweier neuer Schlangenarten. Sitzungsber. Ges. Naturf. Freunde Berlin 1880 (8): 111-121 - get paper here
  • Janssen HY, Pham CT, Ngo HT, Le MD, Nguyen TQ, Ziegler T 2019. A new species of Lycodon Boie, 1826 (Serpentes, Colubridae) from northern Vietnam. ZooKeys 875: 1-29 - get paper here
  • Maki, M. 1931. Monograph of the Snakes of Japan. Dai-ichi Shobo, Tokyo. (1), 7, 240 pages (expanded edition 1933)
  • Mori,M. 1982. Japans Schlangen, Vols. 1-3 (80, 102, 123 pp.). Tokyo (Igaku-Shoin Ltd.) [bilingual edition in German and Japanese]
  • Siler, C. D., Oliveros, C. H., Santanen, A., Brown, R. M. 2013. Multilocus phylogeny reveals unexpected diversification patterns in Asian wolf snakes (genus Lycodon). Zoologica Scripta 42: 262–277 - get paper here
  • Stejneger, LEONHARD H. 1907. Herpetology of Japan and adjacent territory. Bull. US Natl. Mus. 58: xx, 1-577 - get paper here
  • Szczerbak, N.N. 2003. Guide to the Reptiles of the Eastern Palearctic. Krieger, Malabar, FL, 260 pp. - get paper here
  • Tokuda, Tatsuhiro 2010. Records of Dinodon orientale confirmed by in Hokkaido as of 2009. Bulletin of the Herpetological Society of Japan 2010 (1): 32-35 - get paper here
  • Toriba, Michihisa 1991. Karyotypes of two colubrine snakes, Entechinus semicarinatus and Dinodon orientalis. The Snake 23: 1-5
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
  • Yamasaki, Yohei and Yoshihisa Mori. 2015. Natural history of the Oriental Odd-tooth Snake (Dinodon orientale) in Yamanashi, Japan: Seasonal activity and body condition associated with sex. Current Herpetology 34 (1): 60-66 - get paper here
 
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