Trimeresurus jerdonii | |
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Red spotted pitviper, T. j. xanthomelas | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Subphylum: | Vertebrata |
Class: | Reptilia |
Order: | Squamata |
Suborder: | Serpentes |
Family: | Viperidae |
Subfamily: | Crotalinae |
Genus: | Trimeresurus |
Species: | T. jerdonii |
Binomial name | |
Trimeresurus jerdonii Günther, 1875 |
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Synonyms | |
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Trimeresurus jerdonii is a venomous pitviper species found in India (Assam), Burma, Tibet, China and Vietnam. Three subspecies are currently recognized, including the nominate subspecies described here.[4]
Contents |
Males grow to a max total length of 835 mm with a tail length of 140 mm; females 990 mm with a tail length of 160 mm.[5]
Scalation: dorsal scales in 21 longitudinal rows at midbody (rarely 23); snout length a little more than twice diameter of eye; head above, except for large internasals and supraoculars, covered by small, unequal, smooth scales that are feebly imbricate or juxtaposed; first labial completely separated from nasal scales by a suture; internasals separated by 1-2 small scales; 6-9 small scales in line between supraoculars; 7-8 upper labials, third and fourth beneath eye, in contact with subocular or separated by at most a single series of small scales; ventrals: males 164-188, females 167-193; subcaudals: males 50-78, females 44-76.[5]
Found from Assam in India, through northern Burma to Tibet, China (Hupeh, Szechwan and Yunnan) and Vietnam. The type locality given is "Khasi Hills, India.[1]
Subspecies[4] | Taxon author[4] | Common name[2] | Geographic range[2] |
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T. j. bourreti | Klemmer, 1963 | Bourret's pitviper | Northwestern Vietnam (in the provinces of Lao Cai and Lai Chau, and possibly also in adjacent China (Yunnan). |
T. j. jerdonii | Günther, 1875 | Jerdon's pitviper | Southwestern China (in the provinces of southern Xizang (Tibet), western Sichuan and Yunnan), northeastern India, Burma (Chin and Kachin state), and northeastern Nepal. |
T. j. xanthomelas | Günther, 1889 | Red spotted pitviper | Central and southern China, in the provinces of Henan, Shaanxi, Gansu, Sichuan, Guizhou, Hubei and Guangxi. |