Table 2 in Two new syntopic species of wolf snakes (genus Lycodon H. Boie in Fitzinger, 1826) from an imperiled ecosystem in the Song Giang River Valley of southern Vietnam (Squamata: Colubridae)

Table 2. Diagnostic characters of Lycodon truongi sp. nov. and L. anakradaya sp. nov. that differentiate them from each other and all other species of the L. rufizonatus complex. Green cells denote characters that separate L. truongi sp. nov. and L. anakradaya sp. nov. from the other species. Orange cells denote characters separating L. anakradaya sp. nov. from all other species. Blue cells denote characters separating L. truongi sp. nov. from all other species. Data for previously described species come from Jansen et al (2019), Luu et al (2018, 2019), Wang et al (2020, 2021), and Song (2021).
Lycodon anakradaya sp. nov.Lycodon truongi sp. nov.Lycodon meridionalisLycodon rufozonatusLycodon flavozonatusLycodon banksiLycodon cathayaLycodon chapaensisLycodon septentrionalisLycodon futsingensisMaximun SVL (mm)7907001295980901415730890990663DSR18-17-1517-17-1517-17-1517/19-17-1517-17-1517-17-1517-17-1517-17-151717-16/17-15MT12141111-1313?/1011 or 12812-15SPL88888887 or 887-8SPL-E3rd-5th3rd-5th3rd-5th3rd-5th3rd-5th3rd-5th3rd-5th4th-5th2nd-3rd2-4; 3/4-5; 4-6IFL9 or 109109-10101098-1099-11PrO1111111111PtO2222222222-3Lor1111111111Lor-EnonononononononononoaTMP2222222221-2pTMP32332-3332 or 332-3VEN225-232200227-240184-225211-221241199 or 200200-225207-212193-208SC879196-10653-9880-8826 (broken tail)7874-847872-87PrCdivideddivideddividedentireentire /dividedentireentireentireentireentireBSC5 keeled vertebral rows from midbody to vent15 keeled vertebral rows from midbody to vent10-12 medial rows distinctly keeledweakly keeled posteriorly7 keeled medial rows6 central scales of posterior 1/3 weakly keeledsmoothposterior vertebral row weakly keeledkeeledsmoothAdult head patternuniform dark-brown/blackuniform dark-brown/blackblack w/ yellow suturesdark-brown w/ reddish suturesblack w/ yellow markingsuniform dark-greyuniform dark-brown to blackuniform blackuniform blackgreyish brownDorsal ground colordark-brown/blackblackblackdark-brown/blackblackdark-brown/blackblackblackdark-brown/blackdark-brownVentrolateral body patternbandedbandedreticulatedreticulatedreticulatedreticulatedreticulatedbandedbandedbandedVentral patternorangish anteriorly grading to brown posteriorlywhite anteriorly black and white banded posteriorly///unicolor grey-cream//Wide nuchal-occipital band in adultsabsentabsentabsentabsentabsentabsentpresentabsentabsentpresentWide nuchal-occipital band in juvenilesabsent/absentabsentabsent/presentabsentpresentpresentLight-colored BB12 or 131984-11544-5251-788731-352833-3519-33Body bands narrow or widewidethinthinthinthinthinthinthinthinwideColor BB in adultsorangishwhiteyellow (adult)reddishyellowyellowlight-rosewhitewhitelight-roseLight-colored TB5-71325-352017-241513-1611198-19