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.
The green anaconda is the largest and heaviest known snake in the world. Green Anacondas can grow more than 30 feet in length and weigh up to 227 kg. Anacondas belong to the family of non-venomous constrictors. Anacondas coil their heavy-built body around the prey and squeeze it to death.