| Craspedocephalus trigonocephalus |
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| Scientific classification |
| Domain: |
Eukaryota |
| Kingdom: |
Animalia |
| Phylum: |
Chordata |
| Class: |
Reptilia |
| Order: |
Squamata |
| Suborder: |
Serpentes |
| Family: |
Viperidae |
| Genus: |
Trimeresurus |
| Species: |
T. trigonocephalus |
| Binomial name |
Trimeresurus trigonocephalus
(Donndorff, 1798) |
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| Synonyms |
- Coluber capite-triangulatus Lacépède, 1789
- Col[uber]. Trigonocephalus Donndorff, 1798
- Vipera trigonocephala
– Sonnini & Latreille, 1801
- Trigonocephalus nigromarginatus Kuhl, 1820 (fide M.A. Smith, 1943)
- [Cophias] trigonocephalus
Merrem, 1820
- Trigonoceph[alus]. sagittiformis Schinz, 1822
- Megaera trigonocephala
– Wagler, 1830
- Megaera olivacea Gray, 1842
(fide M.A. Smith, 1943)
- Bothrops nigromarginatus
– A.M.C. Duméril, Bibron &
A.H.A. Duméril, 1854
- Trimeresurus trigonocephalus
– Günther, 1864
- Trimeresurus trigonocephalus
– M.A. Smith, 1943
- Lachesis trigonocephalus
– Boulenger, 1896
- Lachesis trigonocephala
– Boettger, 1898
- Trimeresurus capitetriangulatus
– Hoge & Romano-Hoge, 1981
- Trimeresurus trigonocephalus
– Golay et al., 1993
- Trimeresurus (Craspedocephalus) trigonocephalus – David et al., 2011
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Craspedocephalus trigonocephalus, the Sri Lankan pit viper, Ceylon pit viper, Sri Lankan green pitviper or locally, pala polonga, (Sinhala: පළා පොළඟා) is a venomous pit viper species endemic to Sri Lanka. No subspecies are currently recognized.