Trimeresurus flavoviridis
| Trimeresurus flavoviridis | |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Class: | Reptilia |
| Order: | Squamata |
| Suborder: | Serpentes |
| Family: | Viperidae |
| Subfamily: | Crotalinae |
| Genus: | Trimeresurus |
| Species: | T. flavoviridis |
| Binomial name | |
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Trimeresurus flavoviridis (Hallowell, 1861) |
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| Synonyms | |
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Trimeresurus flavoviridis is a venomous pit viper species endemic to the Ryukyu Islands of Japan. No subspecies are currently recognized.
Growing to an average total length of 4–5 feet (122–152 cm), with a maximum total length of 7.9 feet/242 cm (caught in 2011 at Onna, Okinawa), it is the largest member of its genus. It is slenderly built and gracefully proportioned with a large head. The tail, however, is not prehensile.
Scalation includes 35 (sometimes 31, 33, 37 or 39) rows of dorsal scales at midbody, 217-239 ventral scales, 72-95 subcaudal scales, and 7-10 supralabial scales. The crown is covered with small scales.
The color pattern consists of a light olive or brown ground color, overlaid with elongated dark green or brownish blotches. The blotches have yellow edges, sometimes contain yellow spots, and frequently fuse to produce wavy stripes. The belly is whitish with dark coloring along the edges.
Habu (ハブ?), Okinawa habu, yellow-green tree viper,Hon habu (ホンハブ?), Okinawan habu, Kume Shima habu (for T. f. tinkhami).
Trimeresurus flavoviridis is found in Japan in the Ryukyu Islands, including Okinawa and the Amami Islands. The type locality given is "Amakarima Island (one of the Loo-Choo group)" (= Keramashima, Ryukyu Islands).
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