A new species of pit-viper from the Ayeyarwady and Yangon regions in Myanmar (Viperidae, Trimeresurus ).

Autor: Chan KO; Lee Kong Chian Natural History Museum, National University of Singapore, 2 Conservatory Drive, 117377 Singapore, Singapore.; School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia., Anuar S; School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia., Sankar A; Herpetological Society of Singapore, 12J Sime Road, 288296 Singapore, Singapore.; Lee Kong Chian Natural History Museum, National University of Singapore, 2 Conservatory Drive, 117377 Singapore, Singapore., Law IT; Herpetological Society of Singapore, 12J Sime Road, 288296 Singapore, Singapore., Law IS; Herpetological Society of Singapore, 12J Sime Road, 288296 Singapore, Singapore., Shivaram R; Lee Kong Chian Natural History Museum, National University of Singapore, 2 Conservatory Drive, 117377 Singapore, Singapore.; Herpetological Society of Singapore, 12J Sime Road, 288296 Singapore, Singapore., Christian C; Herpetological Society of Singapore, 12J Sime Road, 288296 Singapore, Singapore.; Department of Biological Sciences, National University of Singapore, 16 Science Drive 4, 117558 Singapore, Singapore., Mulcahy DG; Department of Life Sciences, The Natural History Museum, London SW7 5BD, UK., Malhotra A; Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstraße 43, 10115 Berlin, Germany.
Jazyk: angličtina
Zdroj: ZooKeys [Zookeys] 2023 Dec 13; Vol. 1186, pp. 221-234. Date of Electronic Publication: 2023 Dec 13 (Print Publication: 2023).
DOI: 10.3897/zookeys.1186.110422
Abstrakt: In a genomic study by Chan and colleagues, pit-vipers of the Trimeresuruserythrurus - purpureomaculatus complex from the Ayeyarwady and Yangon regions in Myanmar were demonstrated to be a distinct species based on robust population genetic and species delimitation analyses. Here, we provide morphological characterizations and a formal description of those populations as a new species. The new species, Trimeresurusayeyarwadyensis sp. nov. , is most closely related to T.erythrurus and T.purpureomaculatus and shares morphological characteristics with both of those species. Some specimens of T.ayeyarwadyensis sp. nov. have green dorsal coloration and no distinct dorsal blotches (a trait shared with T.erythrurus but not T.purpureomaculatus ), while others have dark dorsal blotches (a trait shared with T.purpureomaculatus but not T.erythrurus ). The distinct evolutionary trajectory of the new species, coupled with the lack of obvious morphological differentiation, represents a classic example of the cryptic nature of species commonly found in the Trimeresurus group of Asian pit-vipers and underscores the need for data-rich analyses to verify species' boundaries more broadly within this genus.
Competing Interests: The authors have declared that no competing interests exist.
(Kin Onn Chan, Shahrul Anuar, Ananthanarayanan Sankar, Ingg Thong Law, Ing Sind Law, Rasu Shivaram, Ching Christian, Daniel G. Mulcahy, Anita Malhotra.)
Databáze: MEDLINE