Liopeltis pallidonuchalis, ı Tan Van Nguyen & Vogel, 2019
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publication ID |
https://doi.org/ 10.1080/00222933.2019.1656784 |
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persistent identifier |
https://treatment.plazi.org/id/03A087B3-FFB0-FFED-01FA-2693FB015F7F |
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treatment provided by |
Valdenar |
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scientific name |
Liopeltis pallidonuchalis |
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Revised key to the genus Liopeltis
We want to emphasise that there are surely still more taxa to be described in the genus Liopeltis . In most species of the genus morphological variation is still not well knownı so the key presented below is just a snapshot of our current knowledge of this genus. Neverthelessı differences between Liopeltis pallidonuchalis sp. nov. and all other congeners are large enough to easily recognise this taxon.
1. Loreal shield present.. ... ... ... ... .... ... .... ... ... ... ... ... ... .... ... ... ... ... ... .... .... ..... ........ 2 Loreal shield missing.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .... ... .... ... .... ... ... .. 5 2. More than 175 ventrals ... .... ... ... ... ... ... ... ... ... ... ... ... ... ... .... ... ... ... ... ....... L. rappi Less than 175 ventrals.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .... ... .... .... ... .... 3 3. More than 115 subcaudalsı 13 dorsal rows one head length before vent.. ... ... L. stoliczkae
Less than 110 subcaudalsı 15 throughout the body.. ... ... ... ... ... ... ... ... .... ... ... .... .... .. 4 4a. 140 – 172 ventralsı 84 – 105 subcaudalsı Ratio TaL/TL 0.290 – 0.340 ı postocular stripe very thickı dark-blackı 3 – 4 thinner dark stripes on flanks.. ... ... ... ... ... ... ... ... ... ... ... ................................................................................................................................................. L. frenata 4b. 126 – 138 ventralsı 67 – 73 subcaudalsı Ratio TaL/TL 0.274 – 0.288 ı postocular stripe thin and pale.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. Liopeltis pallidonuchalis sp. nov. 5. Less than 100 subcaudals.. ... .... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .... ... .. L. calamaria More than 100 subcaudals.. ... .... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .... ... ... ... ... .... ... ... .. 6 6a. Nasal shield fused to internasalı four brown longitudinal stripes on dorsum.. L. philippina
6b. Nasal shield not fused to internasalı dorsum uniform.. ... ... ... ... ... ... ... ... .... .. L. tricolor
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