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Pseudorabdion torquatum (DUMÉRIL, BIBRON & DUMÉRIL, 1854)

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Higher TaxaColubridae, Calamariinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common Names 
SynonymRabdion torquatum DUMÉRIL, BIBRON & DUMÉRIL 1854: 119
Pseudorabdion torquatum — JAN 1862
Pseudorhabdion torquatum — LIDTH DE JEUDE 1890
Pseudorabdion torquatum — VOGEL et al. 2016 
DistributionIndonesia (Sulawesi)

Type locality: Macassar, Sulawesi, Indonesia  
Reproductionoviparous 
TypesLectotype: MNHN-RA 2007.2456, adult male (formerly MNHN-RA 7212A) (SVL 227.0 mm), collected from Macassar, Sulawesi, Indonesia by Dutch naturalists, and donated to MNHN collections by Leiden Museum before 1845, designated by Vogel et al. 2016. 
DiagnosisDiagnosis (genus): The genus Pseudorabdion Jan, 1862 is characterized by the absence of temporals, the presence of internasals and prefrontals, five or six supralabials, five infralabials, 15 dorsal scale rows at mid-body, anal undivided [from DORIA & PETRI 2010].


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CommentSynonymy: Boulenger (1894: 329) synonymized torquatum with P. longiceps and this was adopted by most subsequent authors (e.g. by Leviton & Brown 1959, DAVID & VOGEL 1996), until torquatum was resurrected by VOGEL et al. 2016. However, VOGEL et al. 2016 provide no molecular details so the relationship to longiceps remains a bit unclear.

Abundance: probably very rare; only known from the two syntypes.

Similar species: P. longiceps. Both species can be distinguished only by meristic characters (see Diagnosis).

Type species: Rabdion torquatum DUMÉRIL, BIBRON & DUMÉRIL 1854 is the type species of the genus Pseudorabdion JAN 1862.

Key: for a key to the species of Pseudorabdion see Doria & Petri 2010. For an older key to the species of Borneo see Inger & Leviton 1966 (who thus do not include torquatum and other extraterritorial species).

Original description: VOGEL et al. 2016 present an English translation of the original French description by DUMÉRIL et al. 1854. 
EtymologyNamed after Latin torquata = to be adorned with a necklace or collar.  
References
  • Boulenger,G.A. 1885. A list of reptiles and batrachians from the Island of Nias. Ann. Mag. nat. Hist. (5) 16: 388-389 - get paper here
  • Brongersma, L.D. 1947. Zoological Notes from Port Dickson, 1. Amphibians and Reptiles. Zoologische Mededelingen 27: 300-308 - get paper here
  • Brown, Rafe M.; Leviton,A.E. & Sison,R.V. 1999. Description of a new species of Pseudorabdion (Serpentes: Colubridae) from Panay Island, Philippines with a revised key to the genus. Asiatic Herpetological Research 8: 07-12 - get paper here
  • Cantor. T. E. 1847. Catalogue of reptiles inhabiting the Malayan Peninsula and Islands. J Asiat. Soc., Bengal, Calcutta. 16 (2): 607 - 656, 897-952, 1026 - 1078 - get paper here
  • Chan-ard, T., Parr, J.W.K. & Nabhitabhata, J. 2015. A field guide to the reptiles of Thailand. Oxford University Press, NY, 352 pp. [see book reviews by Pauwels & Grismer 2015 and Hikida 2015 for corrections] - get paper here
  • Das, I. 2012. A Naturalist's Guide to the Snakes of South-East Asia: Malaysia, Singapore, Thailand, Myanmar, Borneo, Sumatra, Java and Bali. Oxford J, ohn Beaufoy Publishing - get paper here
  • David,P. & Vogel, G. 1996. The snakes of Sumatra. An annotated checklist and key with natural history notes. Bücher Kreth, Frankfurt/M.
  • Doria, G. & Petri, M. 2010. PSEUDORABDION IN THE MUSEUM OF GENOVA WITH DESCRIPTION OF TWO NEW SPECIES FROM SUMATRA AND A REVISED KEY TO THE GENUS. Annali del Museo Civico di storia naturale “G. Doria” 102: 187-201
  • 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
  • Grismer, L.L. 2011. Amphibians and reptiles of the Seribuat Archipelago. Edition Chimaira, Frankfurt, 239 pp.
  • Inger, R.F. & A. E. LEVITON 1961. A new colubrid snake of the genus Pseudorabdion from Sumatra. Fieldiana Zoology 44 (5): 45-47 - get paper here
  • Jan, G. 1865. Iconographie générale des ophidiens. 10. Livraison. J.B. Bailière et Fils, Paris - get paper here
  • Leviton,A. E. & W. C. Brown, 1959. A review of the snakes of the genus Pseudorabdion with remarks on the status of the genera Agryophis and Typhlogeophis (Serpentes: Colubridae). Proc. Cal. Acad. Sci. 29: 475-508 - get paper here
  • Manthey, U. & Grossmann, W. 1997. Amphibien & Reptilien Südostasiens. Natur und Tier Verlag (Münster), 512 pp. - get paper here
  • Rooijen, J. van & Myriam van Rooijen. 2007. The land snakes of the Santubong Peninsula, Sarawak, Borneo: A preliminary list of species with natural history notes. Russ. J. Herpetol. 14 (1):27-38 - get paper here
  • Rooijen, J. van & Rooijen, M. van 2004. Einige Beobachtungen zur terrestrischen Schlangenfauna auf der Halbinsel Santubong, Sarawak, Ost-Malaysia. Sauria 26 (4): 19-28 - get paper here
  • Smedley, N. 1931. Notes on some Malaysian snakes. Bull. Raffles Mus. No 5: 49-54 - get paper here
  • Stoliczka,F. 1873. Notes on some species of Malayan Amphibia and reptilia. J. Asiat. Soc. Bengal 42: 111-126 - get paper here
  • Taylor,E.H. 1965. The serpents of Thailand and adjacent waters. Univ. Kansas Sci. Bull. 45 (9): 609-1096 - get paper here
  • Teo, R.C.H. & Rajathurai, S. 1997. Mammals, reptiles and amphibians in the Nature Reserves of Singapore - diversity, abundance and distribution. Proc. Nature Reserves Survey Seminar. Gardens’ Bulletin Singapore 49: 353-425
  • TEYNIÉ, ALEXANDRE; PATRICK DAVID, & ANNEMARIE OHLER 2010. Note on a collection of Amphibians and Reptiles from Western Sumatra (Indonesia), with the description of a new species of the genus Bufo. Zootaxa 2416: 1–43 - get paper here
  • VOGEL, GERNOT; A. A. THASUN AMARASINGHE & IVAN INEICH 2016. Resurrection of Pseudorabdion torquatum (A.M.C. Duméril, Bibron & A.H.A. Duméril, 1854), a former synonym of P. longiceps (Cantor, 1847) (Colubridae: Calamariinae) from Sulawesi, Indonesia. Zootaxa 4121 (3): 337–345 - get paper here
 
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