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{{Short description|Species of snake}}
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{{Speciesbox
{{Speciesbox
| image = Oligodon huahin, Hua Hin kukri snake - Kaeng Krachan National Park (32625377028).jpg
| image =HL0_0576-1_result.jpg
| image_caption = The first located specimen.
Paratype: QSMI 1502
Observer and photographer: Henning Larsen
| status =
| status =
| status_system =
| status_system =
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| genus = Oligodon
| genus = Oligodon
| species = huahin
| species = huahin
| authority = [[:fr:Olivier Sylvain Gérard Pauwels|Pauwels]]<ref>Olivier Sylvain Gérard Pauwels Short Biography http://pauwelsolivier.com/biography.html</ref>, Larsen, Suthanthangjai, David & Sumontha, 2017<ref name="researchgate.net" />
| authority = [[:fr:Olivier Sylvain Gérard Pauwels|Pauwels]],<ref>Olivier Sylvain Gérard Pauwels Short Biography http://pauwelsolivier.com/biography.html</ref> Larsen, Suthanthangjai, David & Sumontha, 2017<ref name="researchgate.net" />
| synonyms =
| synonyms =
}}
}}


'''''Oligodon huahin''''' is a [[species]] of kukri snake in the [[genus]] ''[[Oligodon]]'' [[Leopold Fitzinger|(Fitzinger]], [[1826_in_science|1826]])<ref name=Fitzinger>Fitzinger LJ. (1826). [https://books.google.com/books?id=n-z90BYrzGMC&ots=M-aYKp3ea9&lr&pg=PA56#v=onepage&f=false ''Neue Classification der Reptilien nach ihren natürlichen Verwandtschaften. Nebst einer Verwandtschafts-tafel und einem Verzeichnisse der Reptilien-Sammlung des K. K. zoologischen Museums zu Wien'']. Vienna: J.G. Heubner. 5 unnumbered + 67 pp. + one plate. (Oligodon, new genus, p. 56). (in [[German language|German]] and [[Latin]]).</ref>. The species was first dicovered and [[Species_description|described]] in late 2016, and the article was published July 13th, [[2017_in_science|2017]]. It is only known from its [[Type locality (biology)|type locality]] but its range is likely to be more extensive. ''O. huahin'' is thought to be very [[secretive]], similar to other species of the ''Oligodon'' genus. This theory is supported by the [[Type_(biology)#Type_specimen|type specimen]], which all were [[male]]s, suggesting that it was found during [[The Mating Season|the mating season]] where males are out and actively search for [[female]]s to [[reproduce]]. This may also explain why this species had not yet been discovered<ref name="researchgate.net">{{Cite journal|last=Pauwels|first=O.S.G.|last2=Larsen|first2=H.|last3=Suthanthangjai|first3=W.|last4=David|first4=P.|last5=Sumontha|first5=M.|date=2017|title=A new kukri snake (Colubridae: Oligodon) from Hua Hin District, and the first record of O. deuvei from Thailand|url=https://www.researchgate.net/publication/318393445_A_new_kukri_snake_Colubridae_Oligodon_from_Hua_Hin_District_and_the_first_record_of_O_deuvei_from_Thailand|journal=Zootaxa|volume=4291|issue=3|pages=531–548|doi=10.11646/zootaxa.4291.3.6|via=ResearchGate}}</ref>
'''''Oligodon huahin''''', the '''Hua Hin kukri snake''', is a [[species]] of kukri snakes in the [[genus]] ''[[Oligodon]]'' [[Leopold Fitzinger|(Fitzinger]], [[1826 in science|1826]]).<ref name=Fitzinger>Fitzinger LJ. (1826). [https://books.google.com/books?id=n-z90BYrzGMC&pg=PA56 ''Neue Classification der Reptilien nach ihren natürlichen Verwandtschaften. Nebst einer Verwandtschafts-tafel und einem Verzeichnisse der Reptilien-Sammlung des K. K. zoologischen Museums zu Wien'']. Vienna: J.G. Heubner. 5 unnumbered + 67 pp. + one plate. (Oligodon, new genus, p. 56). (in [[German language|German]] and [[Latin]]).</ref> The species was first discovered and [[Species description|described]] in late 2016, and the article was published July 13, [[2017 in science|2017]]. It is only known from its [[Type locality (biology)|type locality]] but its range is likely to be more extensive. ''O. huahin'' is thought to be very [[secretive]], similar to other species of the genus ''Oligodon''. This theory is supported by the [[Type (biology)#Type specimen|type specimen]], which all were [[male]]s, suggesting that it was found during [[mating season|the mating season]] where males are out and actively search for [[female]]s to [[reproduce]]. This may also explain why this species had not yet been discovered<ref name="researchgate.net">{{Cite journal|last1=Pauwels|first1=O.S.G.|last2=Larsen|first2=H.|last3=Suthanthangjai|first3=W.|last4=David|first4=P.|last5=Sumontha|first5=M.|date=2017|title=A new kukri snake (Colubridae: Oligodon) from Hua Hin District, and the first record of O. deuvei from Thailand|url=https://www.researchgate.net/publication/318393445|journal=Zootaxa|volume=4291|issue=3|pages=531–548|doi=10.11646/zootaxa.4291.3.6|via=ResearchGate}}</ref>


==Phylogeny==
==Phylogeny==
''Oligodon huahin'' is a member of the genus ''Oligodon'', a genus common throughout central and tropical [[Asia]]. It belongs to the snake family [[Colubridae]], the largest snake family, with member species to be found on every [[continent]], except [[Antarctica]].<ref name=EoR>{{cite book |editor=Cogger, H.G. |editor2=Zweifel, R.G.|author= Bauer, Aaron M.|year=1998|title=Encyclopedia of Reptiles and Amphibians|publisher= Academic Press|location=San Diego|pages= 188–195|isbn= 0-12-178560-2}}</ref>
''Oligodon huahin'' is a member of the genus ''Oligodon'', a genus common throughout central and tropical [[Asia]]. It belongs to the snake family [[Colubridae]], the largest snake family, with member species to be found on every [[continent]], except [[Antarctica]].<ref name=EoR>{{cite book |editor=Cogger, H.G. |editor2=Zweifel, R.G.|author= Bauer, Aaron M.|year=1998|title=Encyclopedia of Reptiles and Amphibians|publisher= Academic Press|location=San Diego|pages= 188–195|isbn= 978-0-12-178560-4}}</ref>


==Etymology==
==Etymology==
The specific [[epithet]] is an invariable noun in honor of the administrative district where the type locality lies and of its charming main city [[Hua Hin]]. ''O. huahin'' is the first species of snake [[endemic]] to [[Hua Hin District]], [[Prachuap Khiri Khan Province]], [[Thailand]]. The following common names are suggested "Hua Hin Kukri Snake" (English), "Ngu Ngod Hua Hin" «งูงอดหัวหิน» or "Ngu Peekeaw Hua Hin" «งูปี่แก้วหัวหิน» (Thai), "Oligodon de Hua Hin" (French), "Hua Hin Kukrinatter" (German) and [https://no.wikipedia.org/wiki/Oligodon_huahin"Hua Hin kukrislange" (Norwegian)]
The specific [[epithet]] is an invariable noun in honor of the administrative district where the type locality lies and of its charming main city [[Hua Hin]]. ''O. huahin'' is the first species of snake [[endemic]] to [[Hua Hin District]], [[Prachuap Khiri Khan Province]], [[Thailand]]. The following common names are suggested "Hua Hin Kukri Snake" (English), "Ngu Ngod Hua Hin" «งูงอดหัวหิน» or "Ngu Peekeaw Hua Hin" «งูปี่แก้วหัวหิน» (Thai), "Oligodon de Hua Hin" (French), "Hua Hin Kukrinatter" (German) and [[:nb:Oligodon huahin|Hua Hin kukrislange" (Norwegian)]]


==Habitat, behaviour, ecology and syntopy==
==Habitat, behaviour, ecology and syntopy==
[[File:HL0_0576-1_result.jpg|thumb|left|250px|The first located specimen. Paratype: QSMI 1502 Observer and photographer: Henning Larsen]]
The [[habitat]], [[behaviour]] and [[ecology]] of this species is poorly known. All type specimens used for the [[species description]] were found in a [[moist]] mixed [[bamboo]] forest area with a forest stream. This type of [[habitat]] is excellent for a broad range of species with a [[Species richness |rich]] [[species diversity]] of both [[amphibians]] and [[reptiles]]. Based on data for other members of the genus ''Oligodon'', ''O. huahin'' is thought to be a [[oviparous]] (egg-laying) species, as it is not observed any [[Viviparity ]] (giving live birth) among any species within this genus. This species [[nocturnal animal|nocturnal]]. Other species observed in the [[syntopy]] are as follows:
The [[habitat]], [[behaviour]] and [[ecology]] of this species is poorly known. All type specimens used for the [[species description]] were found in a [[moisture|moist]] mixed [[bamboo]] forest area with a forest stream. This type of [[habitat]] is excellent for a broad range of species with a [[Species richness|rich]] [[species diversity]] of both [[amphibians]] and [[reptiles]]. Based on data for other members of the genus ''Oligodon'', ''O. huahin'' is thought to be an [[oviparous]] (egg-laying) species, as it is not observed any [[viviparity]] (giving live birth) among any species within this genus. This species is [[nocturnal animal|nocturnal]]. Other species observed in the [[syntopy]] are as follows:


*'''[[Reptiles]]'''
*'''[[Reptiles]]'''
**[[Lizards]]
**[[Lizards]]
***([[Agamidae]])
***([[Agamidae]])
****''[[Calotes versicolor]]'' ([[François_Marie_Daudin|Daudin]], [[1802_in_science|1802]])
****''[[Calotes versicolor]]'' ([[François Marie Daudin|Daudin]], [[1802 in science|1802]])
***([[Gekkonidae]])
***([[Gekkonidae]])
****''[[Cyrtodactylus phetchaburiensis]]'' [[Olivier Sylvain Gérard Pauwels|Pauwels]], [[Montri Sumontha|Sumontha]] & [[Aaron Matthew Bauer|Bauer]], [[2016_in_science|2016]]<ref>A new Bent-toed Gecko (Squamata: Gekkonidae: Cyrtodactylus) from Phetchaburi Province, Thailand https://www.researchgate.net/publication/297714545_A_new_Bent-toed_Gecko_Squamata_Gekkonidae_Cyrtodactylus_from_Phetchaburi_Province_Thailand</ref>
****''[[Cyrtodactylus phetchaburiensis]]'' [[Olivier Sylvain Gérard Pauwels|Pauwels]], [[Montri Sumontha|Sumontha]] & [[Aaron Matthew Bauer|Bauer]], [[2016 in science|2016]]<ref>A new Bent-toed Gecko (Squamata: Gekkonidae: Cyrtodactylus) from Phetchaburi Province, Thailand https://www.researchgate.net/publication/297714545_A_new_Bent-toed_Gecko_Squamata_Gekkonidae_Cyrtodactylus_from_Phetchaburi_Province_Thailand</ref>
****''[[Dixonius siamensis]]'' ([[George Albert Boulenger|Boulenger]], [[1899_in_science|1899)]]
****''[[Dixonius siamensis]]'' ([[George Albert Boulenger|Boulenger]], [[1899 in science|1899)]]
****''[[Hemidactylus platyurus]]'' ([[Johann Gottlob Theaenus Schneider|Schneider]], [[ 1797_in_science|1797]])
****''[[Hemidactylus platyurus]]'' ([[Johann Gottlob Theaenus Schneider|Schneider]], [[1797 in science|1797]])
***([[Scincidae]])
***([[Scincidae]])
****''[[Eutropis macularia]]'' ([[Edward Blyth|Blyth]], [[1853_in_science|1853]])
****''[[Eutropis macularia]]'' ([[Edward Blyth|Blyth]], [[1853 in science|1853]])
****''[[Lygosoma quadrupes]]'' ([[Carl von Linné|Linnaeus]], [[1766_in_science|1766]])
****''[[Lygosoma quadrupes]]'' ([[Carl von Linné|Linnaeus]], [[1766 in science|1766]])
**[[Snakes]]
**[[Snakes]]
***([[Colubridae]])
***([[Colubridae]])
****''[[Ahaetulla prasina]]'' ([[Friedrich Boie|F. Boie]], [[1827_in_science|1827)]]
****''[[Ahaetulla prasina]]'' ([[Friedrich Boie|F. Boie]], [[1827 in science|1827)]]
****''[[Boiga siamensis]]'' [[Wirot Nutaphand|Nutaphand]], [[1971_in_science|1971]]
****''[[Boiga siamensis]]'' [[Wirot Nutaphand|Nutaphand]], [[1971 in science|1971]]
****''[[Boiga cyanea]] ([[André Marie Constant Duméril|Duméril]], [[Gabriel Bibron|Bibron]] & [[Auguste Duméril|Duméril]], [[1854_in_science|1854]])
****''[[Boiga cyanea]]'' ([[André Marie Constant Duméril|Duméril]], [[Gabriel Bibron|Bibron]] & [[Auguste Duméril|Duméril]], [[1854 in science|1854]])
****''[[Chrysopelea ornata]] ([[George Shaw|Shaw]], [[1802_in_science|1802]])
****''[[Chrysopelea ornata]]'' ([[George Shaw (biologist)|Shaw]], [[1802 in science|1802]])
****''[[Coelognathus radiatus]]'' ([[Friedrich Boie|F. Boie]], [[1827_in_science|1827]])
****''[[Coelognathus radiatus]]'' ([[Friedrich Boie|F. Boie]], [[1827 in science|1827]])
****''[[Dryocalamus davisonii|Dryocalamus davisoni]]'' ([[William Thomas Blanford|Blanford]], [[1878_in_science|1878)]]
****''[[Lycodon davisonii|Lycodon davisoni]]'' ([[William Thomas Blanford|Blanford]], [[1878 in science|1878)]]
****''[[Lycodon capucinus]]'' ([[Friedrich Boie|F. Boie]][[1827_in_science|1827]])
****''[[Lycodon capucinus]]'' ([[Friedrich Boie|F. Boie]][[1827 in science|1827]])
****''[[Lycodon laoensis]]'' [[Albert Günther|Günther]], [[1864_in_science|1864]]
****''[[Lycodon laoensis]]'' [[Albert Günther|Günther]], [[1864 in science|1864]]
****''[[Oligodon fasciolatus]]'' [[Albert Günther|Günther]], [[1864_in_science|1864]]
****''[[Oligodon fasciolatus]]'' [[Albert Günther|Günther]], [[1864 in science|1864]]
****''[[Ptyas mucosa]]'' ([[Carl von Linné|Linnaeus]], [[1758_in_science|1758]])
****''[[Ptyas mucosa]]'' ([[Carl von Linné|Linnaeus]], [[1758 in science|1758]])
***([[Elapidae]])
***([[Elapidae]])
****''[[Naja kaouthia]]'' [[René Primevère Lesson|Lesson]], [[1831_in_science|1831]]
****''[[Naja kaouthia]]'' [[René Primevère Lesson|Lesson]], [[1831 in science|1831]]
****''[[Ophiophagus hannah]]'' ([[Theodore Edward Cantor|Cantor]], [[1836_in_science|1836)]]
****''[[Ophiophagus hannah]]'' ([[Theodore Edward Cantor|Cantor]], [[1836 in science|1836)]]
***([[Homalopsidae]])
***([[Homalopsidae]])
****''[[Hypsiscopus plumbea]]'' ([[Friedrich Boie|F. Boie]], [[1827_in_science|1827]])
****''[[Hypsiscopus plumbea]]'' ([[Friedrich Boie|F. Boie]], [[1827 in science|1827]])
***([[Lamprophiidae]])
***([[Lamprophiidae]])
****''[[Psammodynastes pulverulentus]]'' ([[Friedrich Boie|F. Boie]], [[1827_in_science|1827]])
****''[[Psammodynastes pulverulentus]]'' ([[Friedrich Boie|F. Boie]], [[1827 in science|1827]])
***([[Vannsnoker|Natricidae]])
***([[Vannsnoker|Natricidae]])
****''[[Xenochrophis piscator|Xenochrophis cf. piscator]]'' ([[Johann Gottlob Theaenus Schneider|Schneider]], [[1799_in_science|1799]])
****''[[Fowlea piscator|Fowlea cf. piscator]]'' ([[Johann Gottlob Theaenus Schneider|Schneider]], [[1799 in science|1799]])
***([[Pareatidae]])
***([[Pareatidae]])
****''[[Pareas carinatus]]'' ([[Friedrich Boie|F. Boie]] [[1828_in_science|1828]])
****''[[Pareas carinatus]]'' ([[Friedrich Boie|F. Boie]] [[1828 in science|1828]])
****''[[Pareas margaritophorus]] ([[Giorgio Jan|Jan]], [[1866_in_science|1866]])
****''[[Pareas margaritophorus]]'' ([[Giorgio Jan|Jan]], [[1866 in science|1866]])
***([[Pythonidae]])
***([[Pythonidae]])
****''[[Reticulated python|(Malayo)Python reticulatus]] ([[Johann Gottlob Theaenus Schneider|Schneider]], [[1801_in_science|1801]])
****''[[Reticulated python|(Malayo)Python reticulatus]]'' ([[Johann Gottlob Theaenus Schneider|Schneider]], [[1801 in science|1801]])
***([[Viperidae]])
***([[Viperidae]])
****''[[Trimeresurus albolabris]]'' [[John Edward Gray|Gray]], [[1842_in_science|1842]]
****''[[Trimeresurus albolabris]]'' [[John Edward Gray|Gray]], [[1842 in science|1842]]
***([[Xenopeltidae]])
***([[Xenopeltidae]])
****''[[Xenopeltis unicolor]] [[Friedrich Boie|F. Boie]], [[1827_in_science|1827]]
****''[[Xenopeltis unicolor]] [[Friedrich Boie|F. Boie]], [[1827 in science|1827]]
*'''[[Amphibians]]'''
*'''[[Amphibians]]'''
**([[Ichthyophiidae]])
**([[Ichthyophiidae]])
***''[[Ichthyophis kohtaoensis]]'' [[Edward Harrison Taylor|Taylor]], [[1960_in_science|1960]]
***''[[Ichthyophis kohtaoensis]]'' [[Edward Harrison Taylor|Taylor]], [[1960 in science|1960]]
**([[Ekte padder|Bufonidae]])
**([[Ekte padder|Bufonidae]])
***''[[Duttaphrynus melanostictus]]'' ([[Johann Gottlob Theaenus Schneider|Schneider]], [[1799_in_science|1799]])
***''[[Duttaphrynus melanostictus]]'' ([[Johann Gottlob Theaenus Schneider|Schneider]], [[1799 in science|1799]])
**([[Dicroglossidae]])
**([[Dicroglossidae]])
***''[[Fejervarya limnocharis]]'' ([[Johann Ludwig Christian Gravenhorst|Gravenhorst]], [[1829_in_science|1829]])
***''[[Fejervarya limnocharis]]'' ([[Johann Ludwig Christian Gravenhorst|Gravenhorst]], [[1829 in science|1829]])
***''[[Limnonectes blythii]]'' ([[George Albert Boulenger|Boulenger]], [[1920_in_science|1920]])
***''[[Limnonectes blythii]]'' ([[George Albert Boulenger|Boulenger]], [[1920 in science|1920]])
***''[[Limnonectes jarujini]]'' Matsui, Panha, Khonsue, and Kuraishi, [[2010_in_science|2010]]
***''[[Limnonectes jarujini]]'' Matsui, Panha, Khonsue, and Kuraishi, [[2010 in science|2010]]
**([[Trangmunnfrosker|Microhylidae]])
**([[Trangmunnfrosker|Microhylidae]])
***''[[Calluella guttulata|Glyphoglossus guttulatus]]'' ([[Edward Blyth|Blyth]], [[1856_in_science|1856]])
***''[[Calluella guttulata|Glyphoglossus guttulatus]]'' ([[Edward Blyth|Blyth]], [[1856 in science|1856]])
***''[[Glyphoglossus molossus]]'' [[Albert Günther|Günther]], [[1869_in_science|1869]]
***''[[Glyphoglossus molossus]]'' [[Albert Günther|Günther]], [[1869 in science|1869]]
***''[[Microhyla fissipes]]'' [[George Albert Boulenger|Boulenger]], [[1884_in_science|1884]]
***''[[Microhyla fissipes]]'' [[George Albert Boulenger|Boulenger]], [[1884 in science|1884]]
***''[[Microhyla heymonsi]]'', [[Carl Vogt|Vogt]], [[1911_in_science|1911]]
***''[[Microhyla heymonsi]]'', [[Carl Vogt|Vogt]], [[1911 in science|1911]]
***''[[Micryletta inornata]]'' ([[George Albert Boulenger|Boulenger]], [[1890_in_science|1890]])
***''[[Micryletta inornata]]'' ([[George Albert Boulenger|Boulenger]], [[1890 in science|1890]])
**([[Ranidae]])
**([[Ranidae]])
***''[[Hylarana erythraea]]'' ([[Hermann Schlegel|Schlegel]], [[1837_in_science|1837]])
***''[[Hylarana erythraea]]'' ([[Hermann Schlegel|Schlegel]], [[1837 in science|1837]])
**([[Rhacophoridae]])
**([[Rhacophoridae]])
***''[[Polypedates megacephalus]]'' [[Edward Hallowell|Hallowell]], [[1860_in_science|1860]]
***''[[Polypedates megacephalus]]'' [[Edward Hallowell (herpetologist)|Hallowell]], [[1860 in science|1860]]


==Description==
==Description==
:''See [[snake scales]] for terms used''
:''See [[snake scales]] for terms used''
It is characterized by a maximal known [[wikt:svl|SVL]] of 485.8 mm; 6 [[Maxilla|maxillary]] teeth, the [[Anatomical_terms_of_location#Anterior_and_posterior|posterior]] two enlarged; 17-17-15 or 17-15-15 [[dorsal scale]] rows; 166–173 [[ventral scales]]<ref>A proposed standard system of counting ventrals in snakes. The Journal of the Herpetological Association of Africa. http://www.tandfonline.com/doi/abs/10.1080/04416651.1965.9650679?journalCode=ther19</ref> and 35–41 [[subcaudal scales]] in males; a single [[anal scale]]<ref>Anal scale photo https://commons.wikimedia.org/wiki/File:Anal_plate.jpg</ref>; deeply forked [[Hemipenis|hemipenes]]<ref>Hemipenes photo https://commons.wikimedia.org/wiki/File:Hemipenes.jpg</ref> lacking spines and [[papilla]]e, extending ''in situ'' to the 14th subcaudal<ref>Green, M. D. (2010) Molecular phylogeny of the snake genus Oligodon (Serpentes: Colubridae), with an annotated checklist and key. Master of Science Thesis, University of Toronto, i–viii + 1–161. https://tspace.library.utoronto.ca/bitstream/1807/24575/1/Green_Marc_201006_MSc_thesis.pdf</ref>; faint<ref name="dorsal stripe"> Individual 1 dorsal view photo https://commons.wikimedia.org/wiki/File:O._huahin_med_stripe.jpg</ref> to nearly indistinct<ref name="svak dorsal stripe">Individual 2 dorsal view photo https://commons.wikimedia.org/wiki/File:O._huahin_med_utydelig_stripe.jpg</ref> vertebral, paravertebral and lateral stripes; no dorsal or supracaudal blotches or crossbars<ref name="dorsal stripe" /><ref name="svak dorsal stripe" />; and an uniformly ivory venter lacking subrectangular or squarish blotches<ref>Ventral photo https://commons.wikimedia.org/wiki/File:Ventral.jpg</ref>.
It is characterized by a maximal known [[wikt:svl|SVL]] of 485.8&nbsp;mm; 6 [[maxilla]]ry teeth, the [[Anatomical terms of location#Anterior and posterior|posterior]] two enlarged; 17-17-15 or 17-15-15 [[dorsal scale]] rows; 166–173 [[ventral scales]]<ref>A proposed standard system of counting ventrals in snakes. The Journal of the Herpetological Association of Africa. http://www.tandfonline.com/doi/abs/10.1080/04416651.1965.9650679?journalCode=ther19</ref> and 35–41 [[subcaudal scales]] in males; a single [[anal scale]];<ref>Anal scale photo https://commons.wikimedia.org/wiki/File:Anal_plate.jpg</ref> deeply forked [[Hemipenis|hemipenes]]<ref>Hemipenes photo https://commons.wikimedia.org/wiki/File:Hemipenes.jpg</ref> lacking spines and [[Genital papilla|papilla]]e, extending ''in situ'' to the 14th subcaudal;<ref>Green, M. D. (2010) Molecular phylogeny of the snake genus Oligodon (Serpentes: Colubridae), with an annotated checklist and key. Master of Science Thesis, University of Toronto, i–viii + 1–161. https://tspace.library.utoronto.ca/bitstream/1807/24575/1/Green_Marc_201006_MSc_thesis.pdf</ref> faint<ref name="dorsal stripe">Individual 1 dorsal view photo https://commons.wikimedia.org/wiki/File:O._huahin_med_stripe.jpg</ref> to nearly indistinct<ref name="svak dorsal stripe">Individual 2 dorsal view photo https://commons.wikimedia.org/wiki/File:O._huahin_med_utydelig_stripe.jpg</ref> vertebral, paravertebral and lateral stripes; no dorsal or supracaudal blotches or crossbars;<ref name="dorsal stripe" /><ref name="svak dorsal stripe" /> and a uniformly ivory venter lacking subrectangular or squarish blotches.<ref>Ventral photo https://commons.wikimedia.org/wiki/File:Ventral.jpg</ref>


==Distribution==
==Distribution==
''Oligodon huahin'' is only known from seven type specimens found at the type locality, within a range of approximately 1000[[Square metre|m<sup>2</sup>]], and therefore its [[Species_distribution|distribution]] is poorly understood, although a "DOR" (dead on road) specimen was later found at a different location and [[habitat]] about 12km away, which indicates that the species is adaptable to several different habitats than the one found at the type locality. This large specimen, with SVL of 520mm, was not used in the description. The [[holotype]] and the [[paratype]]s was all collected from the type locality in Hua Hin District, Prachuap Khiri Khan Province, Thailand. This species is for now proven to be endemic to the Hua Hin District, but it is likely to found in parts of the [[Phetchaburi Province]] as well.
''Oligodon huahin'' is only known from seven type specimens found at the type locality, within a range of approximately 1000 [[Square metre|m<sup>2</sup>]], and therefore its [[Species distribution|distribution]] is poorly understood, although a "DOR" (dead on road) specimen was later found at a different location and [[habitat]] about 12 km away, which indicates that the species is adaptable to several different habitats than the one found at the type locality. This large specimen, with SVL of 520 mm, was not used in the description. The [[holotype]] and the [[paratype]]s was all collected from the type locality in Hua Hin District, Prachuap Khiri Khan Province, Thailand. This species is for now proven to be endemic to the Hua Hin District, but it is likely to found in parts of the [[Phetchaburi Province]] as well.


==Conservation==
==Conservation==
The [[Marine conservation|conservation]] threats to ''O. huahin'' are not known, because the species is only known from a few specimen found at the same spot. The area from which these were collected is not under any sort of protection, and is therefore threatened by [[deforestation]]. The species is «[[Not Evaluated]]» by the "[[International Union for Conservation of Nature]]" ([[IUCN Red List]]).
The [[Marine conservation|conservation]] threats to ''O. huahin'' are not known, because the species is only known from a few specimens found at the same spot. The area from which these were collected is not under any sort of protection, and is therefore threatened by [[deforestation]]. The species is «[[Not Evaluated]]» by the "[[International Union for Conservation of Nature]]" ([[IUCN Red List]]).


==References==
==References==
{{Reflist|30em}}
{{Reflist|30em}}


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[[Category:Oligodon|huahin]]
[[Category:Oligodon|huahin]]
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[[Category:Reptiles of Thailand]]
[[Category:Reptiles of Thailand]]
[[Category:Endemic fauna of Thailand]]
[[Category:Endemic fauna of Thailand]]
[[Category:Reptiles described in the 21st century]]
[[Category:Reptiles described in 2017]]
[[Category:Vertebrates described in 2017]]

Latest revision as of 02:33, 5 April 2024

Oligodon huahin
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Genus: Oligodon
Species:
O. huahin
Binomial name
Oligodon huahin
Pauwels,[1] Larsen, Suthanthangjai, David & Sumontha, 2017[2]

Oligodon huahin, the Hua Hin kukri snake, is a species of kukri snakes in the genus Oligodon (Fitzinger, 1826).[3] The species was first discovered and described in late 2016, and the article was published July 13, 2017. It is only known from its type locality but its range is likely to be more extensive. O. huahin is thought to be very secretive, similar to other species of the genus Oligodon. This theory is supported by the type specimen, which all were males, suggesting that it was found during the mating season where males are out and actively search for females to reproduce. This may also explain why this species had not yet been discovered[2]

Phylogeny

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Oligodon huahin is a member of the genus Oligodon, a genus common throughout central and tropical Asia. It belongs to the snake family Colubridae, the largest snake family, with member species to be found on every continent, except Antarctica.[4]

Etymology

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The specific epithet is an invariable noun in honor of the administrative district where the type locality lies and of its charming main city Hua Hin. O. huahin is the first species of snake endemic to Hua Hin District, Prachuap Khiri Khan Province, Thailand. The following common names are suggested "Hua Hin Kukri Snake" (English), "Ngu Ngod Hua Hin" «งูงอดหัวหิน» or "Ngu Peekeaw Hua Hin" «งูปี่แก้วหัวหิน» (Thai), "Oligodon de Hua Hin" (French), "Hua Hin Kukrinatter" (German) and Hua Hin kukrislange" (Norwegian)

Habitat, behaviour, ecology and syntopy

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The first located specimen. Paratype: QSMI 1502 Observer and photographer: Henning Larsen

The habitat, behaviour and ecology of this species is poorly known. All type specimens used for the species description were found in a moist mixed bamboo forest area with a forest stream. This type of habitat is excellent for a broad range of species with a rich species diversity of both amphibians and reptiles. Based on data for other members of the genus Oligodon, O. huahin is thought to be an oviparous (egg-laying) species, as it is not observed any viviparity (giving live birth) among any species within this genus. This species is nocturnal. Other species observed in the syntopy are as follows:

Description

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See snake scales for terms used

It is characterized by a maximal known SVL of 485.8 mm; 6 maxillary teeth, the posterior two enlarged; 17-17-15 or 17-15-15 dorsal scale rows; 166–173 ventral scales[6] and 35–41 subcaudal scales in males; a single anal scale;[7] deeply forked hemipenes[8] lacking spines and papillae, extending in situ to the 14th subcaudal;[9] faint[10] to nearly indistinct[11] vertebral, paravertebral and lateral stripes; no dorsal or supracaudal blotches or crossbars;[10][11] and a uniformly ivory venter lacking subrectangular or squarish blotches.[12]

Distribution

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Oligodon huahin is only known from seven type specimens found at the type locality, within a range of approximately 1000 m2, and therefore its distribution is poorly understood, although a "DOR" (dead on road) specimen was later found at a different location and habitat about 12 km away, which indicates that the species is adaptable to several different habitats than the one found at the type locality. This large specimen, with SVL of 520 mm, was not used in the description. The holotype and the paratypes was all collected from the type locality in Hua Hin District, Prachuap Khiri Khan Province, Thailand. This species is for now proven to be endemic to the Hua Hin District, but it is likely to found in parts of the Phetchaburi Province as well.

Conservation

[edit]

The conservation threats to O. huahin are not known, because the species is only known from a few specimens found at the same spot. The area from which these were collected is not under any sort of protection, and is therefore threatened by deforestation. The species is «Not Evaluated» by the "International Union for Conservation of Nature" (IUCN Red List).

References

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  1. ^ Olivier Sylvain Gérard Pauwels Short Biography http://pauwelsolivier.com/biography.html
  2. ^ a b Pauwels, O.S.G.; Larsen, H.; Suthanthangjai, W.; David, P.; Sumontha, M. (2017). "A new kukri snake (Colubridae: Oligodon) from Hua Hin District, and the first record of O. deuvei from Thailand". Zootaxa. 4291 (3): 531–548. doi:10.11646/zootaxa.4291.3.6 – via ResearchGate.
  3. ^ Fitzinger LJ. (1826). Neue Classification der Reptilien nach ihren natürlichen Verwandtschaften. Nebst einer Verwandtschafts-tafel und einem Verzeichnisse der Reptilien-Sammlung des K. K. zoologischen Museums zu Wien. Vienna: J.G. Heubner. 5 unnumbered + 67 pp. + one plate. (Oligodon, new genus, p. 56). (in German and Latin).
  4. ^ Bauer, Aaron M. (1998). Cogger, H.G.; Zweifel, R.G. (eds.). Encyclopedia of Reptiles and Amphibians. San Diego: Academic Press. pp. 188–195. ISBN 978-0-12-178560-4.
  5. ^ A new Bent-toed Gecko (Squamata: Gekkonidae: Cyrtodactylus) from Phetchaburi Province, Thailand https://www.researchgate.net/publication/297714545_A_new_Bent-toed_Gecko_Squamata_Gekkonidae_Cyrtodactylus_from_Phetchaburi_Province_Thailand
  6. ^ A proposed standard system of counting ventrals in snakes. The Journal of the Herpetological Association of Africa. http://www.tandfonline.com/doi/abs/10.1080/04416651.1965.9650679?journalCode=ther19
  7. ^ Anal scale photo https://commons.wikimedia.org/wiki/File:Anal_plate.jpg
  8. ^ Hemipenes photo https://commons.wikimedia.org/wiki/File:Hemipenes.jpg
  9. ^ Green, M. D. (2010) Molecular phylogeny of the snake genus Oligodon (Serpentes: Colubridae), with an annotated checklist and key. Master of Science Thesis, University of Toronto, i–viii + 1–161. https://tspace.library.utoronto.ca/bitstream/1807/24575/1/Green_Marc_201006_MSc_thesis.pdf
  10. ^ a b Individual 1 dorsal view photo https://commons.wikimedia.org/wiki/File:O._huahin_med_stripe.jpg
  11. ^ a b Individual 2 dorsal view photo https://commons.wikimedia.org/wiki/File:O._huahin_med_utydelig_stripe.jpg
  12. ^ Ventral photo https://commons.wikimedia.org/wiki/File:Ventral.jpg