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Achalinus niger MAKI, 1931

IUCN Red List - Achalinus niger - Least Concern, LC

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Higher TaxaXenodermidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Black Odd-scaled Snake 
SynonymAchalinus niger MAKI 1931: 60
Achalinus niger — BOURRET 1935: 5
Achalinus niger — SHIE 2005
Achalinus niger — WALLACH et al. 2014: 5 
DistributionTaiwan (1000-3000 m elevation)

Type locality: “Mt. Arisan, Central Formosa" [= Mt. Ali, ext. S Nantou Co., cen. Taiwan, ca. 23°35'N, 120° 49’ E, ca. 2000 m elevation]  
TypesHolotype: NSMT H2562, adult male (formerly KIU) 
DiagnosisDiagnosis. The suture between rostral and internasal much wider than the suture between rostral and anterior nasal; loreal large, one and a half times as long as deep, entering the eye and in contact with prefrontal, supraocular and posterior nasal; temporals 2+2, upper anterior broadly in contact with the eye, lower anterior entering the eye by its corner; supralabials 6; 3 lower labials in contact with anterior chin-shields; 3 pairs of chin-shields; scales in 25 rows, almost smooth, being keeled very feebly posteriorly; the mid-dorsal scale row a little larger than the others; ventrals 181 to 184; subcaudals 51 to 52; anal entire. (Maki 1931) 
EtymologyNamed after Latin niger, nigra, nigrum = black. 
  • Bourret,R. 1935. Notes herpétologiques sur l'Indochine Française X. Les serpents de la station d’altitude du Tam-dao. Bull. Gen. Instr. Pub. Hanoi 8 (avril): 259-271 (1-13)
  • LI, K., WU, Y. Y., XU, R. Y., ZHU, F., REN, J. L., GUO, P., & DONG, B. J. 2021. A new species of the Achalinus rufescens complex (Xenodermidae: Achalinus) from Fujian Province, China. Zootaxa 5026 (2): 239-254 - get paper here
  • Maki, M. 1931. Monograph of the Snakes of Japan. Dai-ichi Shobo, Tokyo. (1), 7, 240 pages (expanded edition 1933)
  • Seung Hoon, Cha 2012. Snake, the world most beautifull curve [in Korean]. Hownext, 304 pp. [ISBN 978-89-965656-7-3] - get paper here
  • Shie, Jia-Rung 2005. Phylogeography of Odd-scaled Snake Achalinus in Taiwan. Masters thesis, National Sun Yat-sen University, 53 pp.
  • Toriba, M. 1993. Present location of the type specimens described by Maki. The Snake 25: 71-72
  • 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.
  • Zhao, E.M. 2006. The snakes of China [in Chinese]. Hefei, China, Anhui Sience & Technology Publ. House, Vol. I, 372 pp., Vol. II (color plates), 280 pp.
  • ZIEGLER, THOMAS; TRUONG QUANG NGUYEN, CUONG THE PHAM, TAO THIEN NGUYEN, ANH VAN PHAM, MONA VAN SCHINGEN, THAM THI NGUYEN, MINH DUC LE 2019. Three new species of the snake genus Achalinus from Vietnam (Squamata: Xenodermatidae). Zootaxa 4590 (2): 249-269 - get paper here
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