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Ptyas korros (Schlegel, 1837)

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Ptyas korros (Schlegel, 1837)
Ptyas korros (Schlegel, 1837)
Ptyas korros (Schlegel, 1837)
Ptyas korros (Schlegel, 1837)
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/Ptyas korros/620.jpg
/Ptyas korros/772.jpg
/Ptyas korros/31.jpg
🗒 Synonyms
synonymColuber korros Lazell 1998
synonymColuber korros Schlegel, 1837
synonymCoryphodon Korros Duméril & Bibron 1854
synonymCoryphodon korros Duméril & Bibron, 1854
synonymLiopeltis libertatis Barbour, 1910
synonymPtyas korros chinensis Mell 1930
synonymPtyas korros Cope 1861
synonymPtyas korros Cox et al. 1998
synonymPtyas korros indicus Mell 1931
synonymPtyas korros Manthey & Grossmann 1997
synonymPtyas korros Pinou & Dowling 2000 (by inference)
synonymPtyas korros Smith 1943
synonymPtyas korros Stejneger 1907
synonymPtyas korros Wallach et al. 2014
synonymPtyas korros Ziegler 2002
synonymZamenis korros Boulenger 1893
synonymZamenis korros Boulenger, 1890
synonymZamenis korros Bourret 1935
synonymZamenis korros Wall 1908
🗒 Common Names
English
  • Chinese Ratsnake
  • Indo-Chinese Ratsnake
  • Indo-Chinese Rat Snake
Other
  • Indo-chinese Rat Snake
📚 Overview
Overview
Summary

Reptile group

snakes
snakes
Diagnostic Keys
Head: 
Supralabial 7 or 8; 3rd & 4th or 4th & 5th in contact with eyes; loreal 2 or 3; preocular 1; presubocular 1; postocular 2. Maxillary teeth 23-28.
Dorsal: 
Smooth and weakly keeled (posteriorly) scales in 15:15 (rarely 13 or 17): 11 rows.
Ventral: 
160-187; anal divided.
Sub Caudal: 
120-151; paired. Hemipenis extends to the 10th to 12th caudal plate.
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References
  1. Günther A. (1864) The reptiles of British India. London: Published for the Ray Society by Robert Hardwicke
  2. Boulenger G. A. (1893) Catalogue of the snakes in the British Museum (Natural History). Vol. 1, London: Taylor and Francis.
  3. Chen L., Shaoying L., Song H., Burbrink F. T., Peng G. Zhiyu S., Jie Z. (2010) Phylogenetic analyses reveal a unique species of Elaphe (Serpentes, Colubridae) new to science. Asian Herpetological Research, 1(2): 1-7
  4. Whitaker R., Captain A. (2004) Snakes of India, The Field Guide. Draco Books
  5. Boulenger G. A. (1890) The fauna of British India including Ceylon and Burma, Reptilia and Batrachia. London: Taylor and Francis.
  6. Purkayastha J., Das S., Sengupta S. (2011) Urban herpetofauna: a case study in Guwahati City of Assam, India. Herpetology Notes, volume 4: 195-202
  7. Das A., Saikia U., Murthy B. H. C. K., Dey S., Dutta S. K. (2009) A herpetofaunal inventory of Barail Wildlife Sanctuary and adjacent regions, Assam, north-eastern India. Hamadryad Vol. 34 (1), pp. 117 – 134
  8. Lin L. H., Mao F., Chen C., Ji X. (2012) Reproductive traits of the gray ratsnake Ptyas korros from three geographically distinct populations. Current Zoology 58 (6): 820–827
  9. Helfenberger N. Phylogenetic relationships of Old World Ratsnakes based on visceral organ topography, osteology, and allozyme variation. Supplement to Russian Journal of Herpetology, 1-62
  10. Smith M. A. (1943) The fauna of British India, Ceylon and Burma including the whole of The Indo-Chinese Sub-region, Reptilia and Amphibia. Vol 3 Serpentes. Taylor & Francis, London.
  11. Ao J. M., David P., Bordoloi S., Ohler A. (2004) Notes on a collection of snakes from Nagaland, Northeast India, with 19 new records for this state. Russian Journal of Herpetology, Vol. 11 (2), pp. 155 – 162
  12. Utiger U., Schätti B., Helfenberger N. (2005) The Oriental Colubrine genus Coelognathus Fitzinger, 1843 and classification of old and new world Racers and Ratsnakes (Reptilia, Squamata, Colubridae, Colubrinae). Russian Journal of Herpetology, Vol. 12 (1), pp. 39 – 60
  13. Purkayastha J. (2013) An Amateur’s Guide to Reptiles of Assam. EBH Publishers (India).
  14. Aulia M. (2002) Rediscovery of the Indochinese Rat Snake Ptyas korros (Schlegel, 1837) (Serpentes: Colubridae) in Borneo. The Raffles Bulletin Of Zoology 200250 (1): 197-198
  15. Ahsan M. F., Parvin S. (2001) The first record of Ptyas korros (Colubridae) from Bangladesh. Asiatic Herpetological Research, Vol. 9, pp. 23-24
  16. Nagy Z. T., Lawson R., Joger U., Wink M. (2004) Molecular systematics of racers, whipsnakes and relatives (Reptilia: Colubridae) using mitochondrial and nuclear markers. J. Zool. Syst. Evol. Research 42, z223–233
No Data
📚 Nomenclature and Classification
References
eng: Indo-Chinese Rat Snake
Schlegel, H. 1837. Essai sur la physionomie des serpens. Partie Descriptive. La Haye (J. Kips, J. HZ. et W. P. van Stockum), 606 S. + xvi
Jayaditya Purkayastha
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    No Data
    📚 Natural History
    Reproduction
    Oviparous
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      Size

      Average length- 180cm. Maximum length- 268cm.

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        1600 mm
        Jayaditya Purkayastha
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          Morphology
          Preocular: 1; Postocular: 2; Supralabials: 8 (4th and 5th touches eye); Infralabials: 9-10; Anterior temporals: 2; Posterior temporals: 2; 15 dorsal scale row at mid body. Ventrals: 160-180; Subcaudals: 120-145 (paired). Dorsum olive brown above. Each dorsal scale has a translucent dark edge, starting from mid body extending to almost tail tip. Venter white.
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            Ecology
            terrestrial snake . Feeds on rodents, frogs, birds, lizards etc.
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              Trophic Strategy

              Feeds on rodents, frogs, birds, lizards etc.

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                No Data
                📚 Habitat and Distribution
                General Habitat
                Tropical and subtropical forests, grasslands, plantations, paddy and near human habitation (upto 2000m above msl.)
                Dr. Chandra Barooah & Lani Sarma (2016) Assam Science Technology and Environment Council.
                AttributionsDr. Chandra Barooah & Lani Sarma (2016) Assam Science Technology and Environment Council.
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                  Tropical and subtropical forests, grasslands, plantations, paddy and near human habitation
                  Jayaditya Purkayastha
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                    Description

                    Found in Himalayan foothills up to West Bengal (in and around Darjeeling) and all other North-east states of Indian subcontinent. 

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                      Local Distribution

                      Throughout Assam

                      Dr. Chandra Barooah & Lani Sarma (2016) Assam Science Technology and Environment Council.
                      AttributionsDr. Chandra Barooah & Lani Sarma (2016) Assam Science Technology and Environment Council.
                      Contributors
                      StatusUNDER_CREATION
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                        Global Distribution

                        India, Myanmar, Cambodia, China, Bangladesh, Indonesia, Laos, Taiwan, Thailand, Vietnam, West Malaysia, Singapore.

                        Indian Distribution

                        Assam; Arunachal Pradesh (Namdapha – Changlang district, Chessa, Chimpu, Itanagar – Papum Pare district

                        Jayaditya Purkayastha
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                          No Data
                          📚 Occurrence
                          No Data
                          📚 Demography and Conservation
                          Risk Statement
                          Schedule IV
                          Jayaditya Purkayastha
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                            Conservation Status
                            IUCN Redlist Status: Not Evaluated
                            Dr. Chandra Barooah & Lani Sarma (2016) Assam Science Technology and Environment Council.
                            AttributionsDr. Chandra Barooah & Lani Sarma (2016) Assam Science Technology and Environment Council.
                            Contributors
                            StatusUNDER_CREATION
                            LicensesCC_BY
                            References
                              Not Listed
                              Jayaditya Purkayastha
                              AttributionsJayaditya Purkayastha
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                              StatusUNDER_CREATION
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                              References
                                Protection Legal Status

                                Wildlife Protection Act (1972): Schedule 4

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                                  No Data
                                  📚 Uses and Management
                                  📚 Information Listing
                                  References
                                  1. Uetz, P., Freed, P. & Hošek, J. (eds.), The Reptile Database, http://www.reptile-database.org, accessed 11/12/2018
                                  Overview > Diagnostic > Diagnostic Keys
                                  1. Günther A. (1864) The reptiles of British India. London: Published for the Ray Society by Robert Hardwicke
                                  2. Boulenger G. A. (1893) Catalogue of the snakes in the British Museum (Natural History). Vol. 1, London: Taylor and Francis.
                                  3. Chen L., Shaoying L., Song H., Burbrink F. T., Peng G. Zhiyu S., Jie Z. (2010) Phylogenetic analyses reveal a unique species of Elaphe (Serpentes, Colubridae) new to science. Asian Herpetological Research, 1(2): 1-7
                                  4. Whitaker R., Captain A. (2004) Snakes of India, The Field Guide. Draco Books
                                  5. Boulenger G. A. (1890) The fauna of British India including Ceylon and Burma, Reptilia and Batrachia. London: Taylor and Francis.
                                  6. Purkayastha J., Das S., Sengupta S. (2011) Urban herpetofauna: a case study in Guwahati City of Assam, India. Herpetology Notes, volume 4: 195-202
                                  7. Das A., Saikia U., Murthy B. H. C. K., Dey S., Dutta S. K. (2009) A herpetofaunal inventory of Barail Wildlife Sanctuary and adjacent regions, Assam, north-eastern India. Hamadryad Vol. 34 (1), pp. 117 – 134
                                  8. Lin L. H., Mao F., Chen C., Ji X. (2012) Reproductive traits of the gray ratsnake Ptyas korros from three geographically distinct populations. Current Zoology 58 (6): 820–827
                                  9. Helfenberger N. Phylogenetic relationships of Old World Ratsnakes based on visceral organ topography, osteology, and allozyme variation. Supplement to Russian Journal of Herpetology, 1-62
                                  10. Smith M. A. (1943) The fauna of British India, Ceylon and Burma including the whole of The Indo-Chinese Sub-region, Reptilia and Amphibia. Vol 3 Serpentes. Taylor & Francis, London.
                                  11. Ao J. M., David P., Bordoloi S., Ohler A. (2004) Notes on a collection of snakes from Nagaland, Northeast India, with 19 new records for this state. Russian Journal of Herpetology, Vol. 11 (2), pp. 155 – 162
                                  12. Utiger U., Schätti B., Helfenberger N. (2005) The Oriental Colubrine genus Coelognathus Fitzinger, 1843 and classification of old and new world Racers and Ratsnakes (Reptilia, Squamata, Colubridae, Colubrinae). Russian Journal of Herpetology, Vol. 12 (1), pp. 39 – 60
                                  13. Purkayastha J. (2013) An Amateur’s Guide to Reptiles of Assam. EBH Publishers (India).
                                  14. Aulia M. (2002) Rediscovery of the Indochinese Rat Snake Ptyas korros (Schlegel, 1837) (Serpentes: Colubridae) in Borneo. The Raffles Bulletin Of Zoology 200250 (1): 197-198
                                  15. Ahsan M. F., Parvin S. (2001) The first record of Ptyas korros (Colubridae) from Bangladesh. Asiatic Herpetological Research, Vol. 9, pp. 23-24
                                  16. Nagy Z. T., Lawson R., Joger U., Wink M. (2004) Molecular systematics of racers, whipsnakes and relatives (Reptilia: Colubridae) using mitochondrial and nuclear markers. J. Zool. Syst. Evol. Research 42, z223–233
                                  Information Listing > References
                                  1. Uetz, P., Freed, P. & Hošek, J. (eds.), The Reptile Database, http://www.reptile-database.org, accessed 11/12/2018

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