Trimeresurus cryptographicus PAWANGKHANANT, IDIIATULLINA, NGUYEN, RUANGSUWAN, MATSUKOJI, DAVID, SUWANNAPOOM & POYARKOV, 2025
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Trimeresurus cryptographicus
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| Higher Taxa | Viperidae, Crotalinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | Thai: “Ngu Khiew Hang Mai Ta To Si Jang” (งูเขียวหางไหม้ตาโตสีจาง) E: Cryptic Green Pitviper Russian: Kripticheskaya bambukovaya kufiya (Криптическая бамбуковая куфия) |
| Synonym | Trimeresurus cryptographicus PAWANGKHANANT, IDIIATULLINA, NGUYEN, RUANGSUWAN, MATSUKOJI, DAVID, SUWANNAPOOM & POYARKOV 2025 Cryptelytrops albolabris —CHAN-ARD et al. 2015 (part) Trimeresurus macrops — POYARKOV et al. 2023: 391 (part) Trimeresurus macrops — IDIIATULLINA et al. 2024: 377 (part) |
| Distribution | Thailand (Phitsanulok) Type locality: Tham Kang Kao Cave, Ban Mung Subdistrict, Noen Maprang District, Phitsanulok Province, Thailand (16°34'00"N, 100°41'32"e; ca. altitude 100 m a.s.l.) |
| Reproduction | |
| Types | Holotype. ZMMU Re-17934, adult female, collected by P. Pawangkhanant on 15 December 2020. Paratypes (n=6). rIM-00056, adult male, collected on 25 November 2021 by P. Pawangkhanant; rIM- 00055, adult female, collected on 18 February 2024 by P. Pawangkhanant; rIM-00106, adult male, collected on 18 March 2020 by P. Pawangkhanant; ZMMu re-18001–03, three subadult females, collected on 14 july 2024 by P. Pawangkhanant, S.S Idiiatullina, t. ruangsuwan, t. Matsukoji, and N. A. Poyarkov, all paratypes were collected from the same locality as the holotype. |
| Diagnosis | Diagnosis: the new species is assigned to the subgenus Trimeresurus based on the following morphological attributes: a long calyculate hemipenis and a partially fused first supralabial and nasal scales (Malhotra & thorpe 2004 [as Cryptelytrops]; David et al. 2011). the new species Trimeresurus cryptographicus sp. nov. differs from other members of the subgenus Trimeresurus by the combination of the following morphological characters: small size, maximum known SVl of 523 mm; dorsal scales in 23(22)-21-15 rows, moderately keeled except the outermost rows; ventral scales 171–178; subcaudal scales 57–73 (sexes pooled), all paired; iris golden yellow in both sexes; body uniformly bright grass-green with indistinct serrated dark transverse markings in adults (SVl 499–523 mm), but neonates and juveniles (SVl 231–245 mm) have prominent irregular serrated darkgrey crossbands on a light green dorsum; suborbital stripe bluish-white and thin in male, absent in females; ventrolateral stripe white, distinct, present on the first few dorsal scale rows in both sexes; throat, chin, and lower labials pale blue; ventral surfaces greenish-yellow; tail light brick-red mottled with dark spots above, and with white markings below. (PAWANGKHANANT et al. 2025) Unfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data to their customers. These details, e.g. detailed descriptions or comparisons (about 16212 characters) are available for collaborators and contributors. Please contact us for details. |
| Comment | Distribution: see map in Pawangkhanant et al. 2025 (516 (Fig. 1). |
| Etymology | Named after the classical greek adjective kryptos (κρυπτός), “cryptos”, meaning “hidden”, and from the past participle of the verb graphein (γράφειν), meaning “to write” or “to draw”. The authors coined this Greek word, in latinized form, by allusion to the strong dorsal pattern present in juvenile specimens, which disappears and becomes barely visible in adult individuals like some cryptography text. Furthermore, this pitviper is a good example of cryptic and elusive species itself. |
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