![]() ![]() Amazon Basin specimens generally have an uninterrupted white dorsal line, whereas the white markings in specimens from Guyana and Surinam (known as "Guyana Shield" or "Northern" emerald tree boas) are quite variable. Those from the southern end of their range in Peru tend to be darker in color. Specimens from the Amazon River basin tend to grow the largest, are much more docile than their Northern relatives and attain lengths of 7–9 feet (2.1–2.7 m), while the overall average size is closer to 6 feet (1.8 m). The name recently suggested for this morphological variant, is Corallus batesii. Some herpetologists have considered whether they should be classified as a new species based on locality. As opposed to popular belief, yellow juveniles (as in the green tree python) do not occur in the emerald tree boa. This also occurs in green tree python ( Morelia viridis), a python species in which hatchlings and juveniles may also be canary yellow or brick-red. ![]() Juveniles vary in color between various shades of light and dark orange or brick-red before ontogenetic coloration sets in and the animals turn emerald green (after 9–12 months of age). The bright coloration and markings are very distinctive among South American snakes. The color pattern typically consists of an emerald green ground color with a white irregular interrupted zigzag stripe or so-called 'lightning bolts' down the back and a yellow belly. They have highly developed front teeth that are likely proportionately larger than those of any other non-venomous snake. At the Philadelphia Zoo in Philadelphia, PennsylvaniaĪdults grow to about 6 feet (1.8 m) in length. ![]()
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