Ahaetulla flavescens (WALL, 1910)
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Ahaetulla flavescens
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| Higher Taxa | Colubridae, Ahaetuliinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Yellow whip snake G: Gelbe Peitschennatter |
| Synonym | Dryophis prasinus flavescens WALL 1910: 834 Dryophis prasinus indicus MELL 1931: 119–219 (by implication) Dryophis prasina – GÜNTHER 1858: 159 (part) Tragops prasinus – GÜNTHER 1864: 364 Tragops prasinus – THEOBALD 1876: 191 Dryophis prasinus – BOULENGER 1890: 369 Dryophis prasinus – BOULENGER 1896: 180 (part) Dryophis prasinus ‘forma typica’ – WALL 1909: 354 (non H. Boie in F. Boie, 1827) Dryophis prasinus ‘forma typica’ – WALL 1909: 898 (non H. Boie in F. Boie, 1827) Dryophis prasinus ‘forma typica’ – WALL 1910: 834 (non H. Boie in F. Boie, 1827) Dryophis prasinus flavescens – WALL 1910: 834 (nec Smith, 1914) Ahaetulla flavescens — SRIKANTHAN et al. 2022 Ahaetulla flavescens — MALSAWMDAWNGLIANA et al. 2022 |
| Distribution | India (Meghalaya, Assam, Arunachal Pradesh, Mizoram), Bhutan Myanmar (= Burma), Lectotype locality: Lakimpur, Assam, Northeast India”; 27°13’40.8’’ N, 94°6’28.8’’ E. |
| Reproduction | ovovivparous |
| Types | Syntype: NHMUK (= BMNH) 1908.6.23.58, female, designated by Srikanthan et al. 2022. Paralectotype: NHMUK (= BMNH) 1908.6.23.59, female. |
| Diagnosis | Diagnosis: “A species of Ahaetulla inhabiting Northeast India, defined by the following combination of characters: dorsal scales in 15:15:11–13 smooth rows (vs 13 midbody rows of keeled scales in Proahaetulla Link, 1807); rostral appendage absent (vs present in the A. nasuta group and A. pulverulenta groups); presence of a pair of white ventrolateral stripes throughout the body (vs absence of ventrolateral stripes in the A. pulverulenta group); dorsum usually greenish (vs usually brownish in both sexes in the A. pulverulenta and A. laudankia groups; usually brown in females, in A. anomala (Annandale, 1906), A. perrotetii (Duméril & Bibron, 1854), A. dispar (Günther, 1864) and A. travancorica Mallik, Srikanthan, Pal, D’Souza, Shanker & Ganesh, 2020); crown uniform and unpatterned (vs crown with black markings and reticulations in A. anomala, A. laudankia Deepak, Narayanan, Sarkar, Dutta & Mohapatra, 2019 and A. fasciolata); ventrals 194–200 (vs < 190 in A. nasuta and A. pulverulenta groups); subcaudals 155–168 (vs < 120 in A. perrotetii, A. dispar and A. travancorica); cloacal scale paired (vs entire in A. mycterizans and A. fasciolata); supralabials entire (vs 3rd–4th supralabials horizontally divided in A. fronticincta); nasals not in contact with one another (vs in contact with one another above rostral in A. fronticincta); upper snout surface flat to mildly depressed (vs convex in A. mycterizans); 8.2–10% divergent in ND4 and 6.5–9.5% in Cytb gene from the SE Asian populations of A. prasina sensu lato.” (Srikanthan et al. 2022) |
| Comment | Synonymy after Srikanthan et al. 2022 who revalidated it from the synonymy of A. prasina. Distribution: see map in Srikanthan et al. 2022: . Behavior: diurnal. Venomous. Mildly venomous but usually harmless for humans. Habitat: fully arboreal (Srikanthan et al. 2022). |
| Etymology | Named after the Latin verb ‘flavesco / flavescre’, meaning ‘turning to yellow’ / ‘becoming yellow’, referring to the yellowish colouration of the type specimens in life. |
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