An effective date or as of date is the date upon which something is considered to take effect. This may be different from the date upon which the event actually occurs or is recorded.
The Eunectes Four. Four species of semiaquatic South American boas go by the name of anaconda. One is the green anaconda (Eunectes murinus), which occurs in countries such as Brazil, Bolivia, Peru, Ecuador, French Guiana, Guyana, Colombia, Venezuela and the island of Trinidad. The yellow anaconda (E. notaeus) is the only other Eunectes species commonly seen in the pet trade.
They continue to grow throughout their entire lives, with the females growing significantly larger, and like all snakes, Anacondas are cold-blooded. A member of the boa family, this non-venomous, semi-aquatic carnivore lives in swamps, marshes and slow-moving streams in the tropical rain forests of South America.