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Asthenodipsas tropidonotus (LIDTH DE JEUDE, 1923)

IUCN Red List - Asthenodipsas tropidonotus - Data Deficient, DD
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Higher TaxaPareidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Sumatra Slug Snake
G: Sumatra-Schneckennatter 
SynonymAmblycephalus tropidonotus LIDTH DE JEUDE 1923
Amblycephalus tropidonotus — WERNER 1929: 188
Pareas tropidonotus — HAAS 1950: 529
Internatus tropidonotus RAO & YANG 1992
Internatus tropidonotus — DAVID & VOGEL 1996
Asthenodipsas tropidonotus — ISKANDAR & COLIJN 2002
Asthenodipsas tropidonotus — LOREDO et al. 2013
Asthenodipsas (Spondylodipsas) tropidonotus — POYARKOV et al. 2022 
DistributionIndonesia (Sumatra)

Type locality: Tapanoeli, North Sumatra = Tapanuli, Province of Sumatera Utara.  
Reproductionoviparous (not imputed, fide Zimin et al. 2022) 
Typeslectotype: RMNH 4902 B (designated by GROSSMANN & TILLACK 2003) 
DiagnosisDiagnosis: “the Sumatran population is discretely diagnosable from the unbanded lineage in having 199–204 ventral scales as opposed to 167–190. Therefore, we no longer consider A. tropidonotus a junior synonym of A. vertebralis and resurrect it to its previous species status. It is diagnosable by the unique combination of having a maximum SVL of 549 mm in males (females unknown); 15/15/15 dorsal scale rows; 199–204 ventral scales; 73–76 subcaudal scales; a single postocular; 2+1–2 temporals; six or seven supralabials and infralabials; the presence of a single anterior inframaxillary; and having dorsal bands as adults” [LOREDO et al. 2013: 513].
 
CommentSynonymy: A. tropidonotus was synonymed with A. vertebralis by GROSSMANN & TILLACK 2003, which was accepted by DAVID & VOGEL 1996 and WALLACH et al. 2014: 60. LOREDO et al. 2013 revalidated A. tropidonotus.

Taxonomy: see also A. vertebralis.

Behavior: nocturnal.

Habitat: partly arboreal (Harrington et al. 2018). 
EtymologyThe species epithet, tropidonotus, is Latin and comes from the Greek (tropideion " keel" + notos "back, dorsum"). It is a reference to the prominent keel-shaped vertebral region. 
References
  • Boulenger, G.A. 1900. Description of new reptiles from Perak, Malay Peninsula. Ann. Mag. Nat. Hist. (7) 5: 306-308 - get paper here
  • Chan-ard,T.; Grossmann,W.; Gumprecht,A. & Schulz,K. D. 1999. Amphibians and reptiles of peninsular Malaysia and Thailand - an illustrated checklist [bilingual English and German]. Bushmaster Publications, Würselen, Gemany, 240 pp. [book review in Russ. J Herp. 7: 87] - get paper here
  • Cox, Merel J.; Van Dijk, Peter Paul; Jarujin Nabhitabhata & Thirakhupt,Kumthorn 1998. A Photographic Guide to Snakes and Other Reptiles of Peninsular Malaysia, Singapore and Thailand. Ralph Curtis Publishing, 144 pp.
  • Das, I. & Yaakob, N. 2007. Status of knowledge of the Malaysian herpetofauna. In Status of biological diversity in Malaysia & threat assessment of plant species in Malaysia. in: L. S. L. Chua, L. G. Kirton & L. G. Saw (eds.), Status of biological diversity in Malaysia & threat assessment of plant species in Malaysia. Forest Research Institute Malaysia, Kepong, pp. 31-81
  • David,P. & Vogel, G. 1996. The snakes of Sumatra. An annotated checklist and key with natural history notes. Bücher Kreth, Frankfurt/M.
  • Gower, D.; Garrett, K. & Stafford, P. 2012. Snakes. Firefly Books, Buffalo, NY,<br />144 p..
  • Grandison, A. G. C. 1978. Snakes of West Malaysia and Singapore. Annalen des Naturhistorischen Museums in Wien 81 [1977]: 283-303 - get paper here
  • Grandison, A.G.C. 1972. The Gunong Benom Expedition 1967. 5. Reptiles and amphibians of Gunong Benom with a description of a new species of Macrocalamus. Bull. Br. Mus. nat. Hist. (Zool.), London, 23: 45-101. - get paper here
  • Grismer, L. Lee; Chan K. Onn, Jesse L. Grismer, Perry L. Wood, Jr., and A. Norhayati 2010. A CHECKLIST OF THE HERPETOFAUNA OF THE BANJARAN BINTANG, PENINSULAR MALAYSIA. Russ. J. Herpetol. 17 (2): 147-160 - get paper here
  • Grossmann, W. & Tillack, F. 2003. On the taxonomic status of Asthenodipsas tropidonotus (LIDTH DE JEUDE 1923) and Pareas vertebralis BOULENGER 1900) (Serpentes: Colubridae: Pareatinae). Russ. J. Herpetol. 10 (3): 175-190 - get paper here
  • Grossmann, W. & Tillack, F. 2004. Die Bergschneckennatter Asthenodipsas vertebralis (BOULENGER 1900) im Biotop und im Terrarium (Squamata: Colubridae: Pareatinae). Sauria, Berlin 26 (2): 9-22 - get paper here
  • HAAS, C.P.J. De 1950. Checklist of the snakes of the Indo-Australian archipelago. Treubia 20 (3): 511-625 - get paper here
  • Harrington, Sean M; Jordyn M de Haan, Lindsey Shapiro, Sara Ruane 2018. Habits and characteristics of arboreal snakes worldwide: arboreality constrains body size but does not affect lineage diversification. Biological Journal of the Linnean Society 125 (1): 61–71 - get paper here
  • Iskandar, Djoko T. and Colijn, E. 2002. A checklist of Southeast Asian and New Guinean Reptiles. Part I: Serpentes. Biodiversity Conservation Project, Jakarta, 195 pp. [2001]
  • Lidth DE JEUDE, T.W. VAN 1923. A new Amblycephalus from Sumatra. Zoologische Mededelingen 7: 243. - get paper here
  • LOREDO, ARIEL I.; PERRY L. WOOD, JR., EVAN S. H. QUAH, SHAHRUL ANUAR, LEE F. GREER, NORHAYATI AHMAD & L. LEE GRISMER 2013. Cryptic speciation within Asthenodipsas vertebralis (Boulenger, 1900) (Squamata: Pareatidae), the description of a new species from Peninsular Malaysia, and the resurrection of A. tropidonotus (Lidth de Jude, 1923) from Sumatra: an integrative taxonomic analysis. Zootaxa 3664 (4): 505–524 - get paper here
  • Manthey, U. & Grossmann, W. 1997. Amphibien & Reptilien Südostasiens. Natur und Tier Verlag (Münster), 512 pp. (ISBN 3-931587-12-6) - get paper here
  • Mattison, Chris 2007. The New Encyclopedia of Snakes. Princeton University Press
  • Pauwels, O.S.G.; David, P.; Chimsunchart, C. & Thirakhupt, K. 2003. Reptiles of Phetchaburi Province, Western Thailand: a list of species, with natural history notes, and a discussion on the biogeography at the Isthmus of Kra. Natural History Journal of Chulalongkorn University 3 (1): 23-53 - get paper here
  • Poyarkov NA, Nguyen TV, Pawangkhanant P, Yushchenko PV, Brakels P, Nguyen LH, Nguyen HN, Suwannapoom C, Orlov N, Vogel G. 2022. An integrative taxonomic revision of slug-eating snakes (Squamata: Pareidae: Pareineae) reveals unprecedented diversity in Indochina. PeerJ 10: e12713 - get paper here
  • Rao, D.Q. & D.T. YANG 1992. Phylogenetic systematics of Pareinae (Serpents) of southeastern Asia and adjacent islands with relationship between it and the geology changes. [In Chinese, English summary]. Acta zool. Sinica, 38 (2): 139-150.
  • Seung Hoon, Cha 2012. Snake, the world most beautifull curve [in Korean]. Hownext, 304 pp. [ISBN 978-89-965656-7-3] - get paper here
  • Smedley, N. 1932. Amphibians and reptiles from the Cameron Highlands, Malay Peninsula. Bull. Raffles Mus. 6: 105 - 123 [1931] - get paper here
  • Werner, F. 1929. Übersicht der Gattungen und Arten der Schlangen aus der Familie Colubridae. 3. Teil (Colubrinae). Mit einem Nachtrag zu den übrigen Familien. Zool. Jb. Syst., Jena, 57: 1-196
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
 
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