Boiga dightoni (BOULENGER, 1894)
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Higher Taxa | Colubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
Subspecies | |
Common Names | E: Pirmad Cat Snake E: Whitaker's cat snake [ |
Synonym | Dipsas dightoni BOULENGER 1894 Dipsadomorphus dightoni — BOULENGER 1896 Boiga dightoni — SMITH 1943: 359 Boiga dightoni — INGER et al. 1984: 567 Boiga dightoni — DAS 1996: 54 Boiga dightoni — GROEN 2008 Boiga dightoni — WALLACH et al. 2014: 103 Boiga dightoni — GANESH et al. 2020 Boiga whitakeri GANESH, MALLIK, ACHYUTHAN, SHANKER & VOGEL 2021 Boiga dightoni — NARAYANAN et al. 2023 |
Distribution | India (Kerala) Type locality: "Pirmaad, at an altitude of 3,300 feet." whitakeri: India (Southern Western Ghats: Tamil Nadu, Kerala: Devarmalai and Agasthyamalai hills); Type locality: Devar Malai (9.173N, 77.261E; 1020 m asl), Tirunelveli dt., Tamil Nadu. |
Reproduction | oviparous |
Types | Holotype: BMNH 1946.1.1.32, an 1100 mm female (S. Dighton, Jan. 1893). Holotype: BNHS 3597 (ex. CESS 255) an adult male collected in 2011; Paratype: BNHS 1863 coll. K.G. Adiyodi, from Pullompara, Ernakulam dt., Kerala, in June 1961 [whitakeri] |
Diagnosis | Diagnosis: A species of Boiga endemic to the Southern Western Ghats of India, characterised by the following combination of characters: 21–23 midbody scale rows (vs. 19 in B. ceylonensis, B. thackerayi, B. beddomei, B. flaviviridis); vertebral scales strongly enlarged (vs. mildly enlarged in B. barnesii); venter with salmon pink spots in life (vs. yellowish in B. thackerayi, B. flaviviridis; variable in B. andamanensis; dorsum predominantly uniform brown (vs. green in B. flaviviridis; variable in B. andamanensis); ventrolateral pattern with salmon pinkish markings (vs. with alternate white and black blotches in B. barnesii, B. thackerayi; without any pattern in B. andamanensis, B. flaviviridis); temporal subequal to coastal body scale (vs. larger than coastal body scale in B. nuchalis) (from Ganesh et al. 2020). |
Comment | Habitat: fully arboreal (Harrington et al. 2018). Synonymy: Narayanan et al. 2023 synonymized B. whitakeri with B. dightoni. |
Etymology | Named after the collector of the holotype, “Mr. S. Dighton at Pirmaad”, most likely identical with S. M. Dighton, a tea planter at Travancore, Kerala (1888). B. whitakeri was named after the eminent Indian herpetologist Romulus Earl Whitaker (b. 1943-). |
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