A new karst-dwelling, colorful pitviper (Viperidae: Trimeresurus) from northern Peninsular Thailand Author Sumontha, Montri Ranong Marine Fisheries Station, 157 Saphanpla Rd., Paknam, Muang, Ranong 85000, Thailand. Author Suntrarachun, Sunutcha 0000-0001-8358-8230 Queen Saovabha Memorial Institute, Thai Red Cross Society, Pathumwan, Bangkok 10330, Thailand. & https: // orcid. org / 0000 - 0001 - 8358 - 8230 Author Pauwels, Olivier S. G. Royal Belgian Institute of Natural Sciences, Rue Vautier 29, B- 1000 Brussels, Belgium. Author Ngkhanant, Parinya Pawa- 0000-0002-0947-5729 University of Phayao, Phayao, Thailand. peat _ swamp @ hotmail. com; https: // orcid. org / 0000 - 0002 - 0947 - 5729 peat_swamp@hotmail.com Author Chomngam, Nirut 0000-0002-7140-9044 54 M. 2 Tha Pha, Ban Pong, Ratchaburi 70110, Thailand. https: // orcid. org / 0000 - 0002 - 7140 - 9044 Author Iamwiriyakul, Prapanth 0000-0001-7286-3604 59 Soi Onnut 19 Suanluang, Bangkok 10250, Thailand. https: // orcid. org / 0000 - 0001 - 7286 - 3604 Author Chanhome, Lawan 0000-0003-2425-5000 Queen Saovabha Memorial Institute, Thai Red Cross Society, Pathumwan, Bangkok 10330, Thailand. & https: // orcid. org / 0000 - 0003 - 2425 - 5000 text Zootaxa 2021 2021-05-20 4974 2 307 332 journal article 6358 10.11646/zootaxa.4974.2.4 09d3cfb2-9360-4616-a754-de670e634ea2 1175-5326 4775625 CC82F4EC-2C10-43E9-8408-246186C78DBD

TABLE 3. Meristic, morphometric (in mm) and chromatical data for the type series of Trimeresurus kuiburi sp. nov. Paired meristic characters are given left/right.

	Holotype, QSMI 1500 (MS 703)	Paratype, AUP-02005 (MS 701)	Paratype, PSUZC-R 734 (MS 704)	Paratype, PSUZC-R 735 (MS 731)	Paratype, QSMI 1501 (MS 702)	Paratype, AUP-02006 (MS 732)
Sex	Male	Male	Male	Male	Female	Female
SVL	376.4	372.9	340.8	334.4	451.2	323.1
TaL	88.2	81.1	71.1	77.7	70.6	49.5
HL	18.0	17.2	16.8	15.4	20.7	15.9
HW	13.4	12.1	10.7	10.5	15.0	11.8
HD	7.2	7.3	6.7	7.0	8.9	6.4
SnL	6.2	5.6	5.2	4.6	6.6	4.7
ED	3.5	3.4	3.2	2.9	3.4	2.3
SOL	4.1/4.1	3.9/4.6	3.3/3.4	3.9/3.6	4.4/4.4	3.7/3.9
SOW	1.3/1.3	1.7/1.9	1.6/1.4	1.6/1.4	1.6/1.3	1.6/1.7
Internasals in contact	Yes	Yes	Yes	Yes	Yes	Yes
Contact nasal-1st SL	Partially fused	Partially fused	Partially fused	Partially fused	Partially fused	Partially fused
IOS	9	9	9	11	10	10
PosOc	1/1	2/2	2/2	2/2	2/1	2/2
SL	11/10	10/10	9/9	10/11	10/11	10/11
IL	13/12	11/11	10/10	10/10	11/11	12/12
ASR	21	21	21	21	23	21
MSR	19	19	19	19	19	19
PSR	15	15	15	15	15	15
SRR 21 to 19 (V)	30/31	19/16	37/38	23/25	28/30	47/44
SRR 19 to 17 (V)	108/108	103/103	111/111	111/109	114/114	109/108
SRR 17 to 15 (V)	121/122	113/113	128/124	127/124	125/126	124/124
PreV + V	1 + 166	2 + 164	1 + 166	2 + 166	1 + 171	2 + 164
A	1	1	1	1	1	1
SC	65	63	65	65	53	51
Suborbital white stripe	Concave, contrasted	Concave, contrasted	Concave, contrasted	Concave, contrasted	Straight, poorly visible	Straight, poorly visible
Number of red bands on dorsum	62	61	60	68	68	59
White vertebral dots	Present, every 5 or 6 scales	Present, every 5 or 6 scales	Present, every 5 or 6 scales	Present, every 5 or 6 scales	Absent	Absent