Animals / Amphibians

The Greater Siren

Синонимы и названия на других языках

Der Großer Armmolch (German)

La sirène lacertine (French)

La sirena mayor (Spanish)



Order: caudate

Family: sirenidae

Genus: siren

Species: siren lacertian 


The greater siren is native to North America. It can be found in the eastern part of the USA, from Washington D.C. to Florida. Sirens live in wetlands: lakes, ponds, marshes etc. 

Внешний вид

An adult siren ranges in length from 20 to 100 cm. Weight can vary from 50 to 1000 g.

It is an eel-like amphibian, one of the largest in North America. They can be black, brown, olive green or gray with light spots. The belly is light. Sirens have rudimentary front legs with four toes each and three pairs of gills.  


It is a nocturnal species. Greater sirens spend days buried in mud and at night they hunt for food. They are quite neat animals that are easy to keep. However they don’t like being handled. If you need to move the siren, it is best to use a scoop net. Sometimes they make sounds that remind of yelping. 

Содержание и уход

Sirens can get large, so they require spacious tanks (about 400 l for 1-2 adults). The tank has to be covered safely. Sirens need very clean dechlorinated water. You will need a powerful filter and every week you will need to change 10-20% of water. Don’t allow the concentration of ammonia and nitrites to rise. The water temperature should be around 2025 degrees. Large aquarium gravel makes good substrate for sirens. You will also need to place in the tank some shelters: sunken tubes, logs, artificial plants etc. 


Greater sirens are carnivorous. Young sirens have to be fed daily with small snails, earthworms, bloodworm, sludge worm. Adult sirens normally eat twice a week and their menu consists of small fish, crayfish, insects, lean meat and even pinky mice. 


No specific diseases have been reported. Average life span in captivity is up to 25 years. 


The methods of fertilization are not known yet. Females lay up to 500 eggs are deposited (February-March), singly or in small clusters, on the pond bottom in densely vegetated sites. The eggs hatch in April and May; very little is known of larval period.

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