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Amphibians

Reticulated Siren

Siren reticulata · also called reticulated sirens, leopard eel

Data Deficient carnivore Rivers & wetlands

A large, net-patterned salamander drifting through a Florida Panhandle wetland pool went unnamed by science until 2018, an overlooked giant hiding in plain sight within one of the best-studied regions of the country.

Overview

The reticulated siren, Siren reticulata, is a large, eel-bodied salamander native to shallow, seasonal wetlands within the Gulf Coastal Plain of the Florida Panhandle and southern Alabama. Its remarkably recent formal description, striking net-like skin pattern, and lifelong retention of external gills make it one of the more scientifically notable amphibian discoveries of the twenty-first century.

A giant hiding in plain sight

Despite growing large enough to be genuinely conspicuous, the reticulated siren evaded formal scientific description until 2018, a reminder that even well-studied parts of the United States can still hold undiscovered vertebrates within their wetlands.

Status

Data Deficient — comprehensive population data remains limited following the species’ recent 2018 formal description.

Reticulated Siren: common questions

Why was the reticulated siren only discovered so recently?

The reticulated siren remained formally undescribed by science until 2018, despite being one of the largest new vertebrate species named in the United States in decades, largely because it lives a secretive, nocturnal life within seasonal wetland pools that are easy for researchers to overlook and had long been confused with other, already-described siren species.

Where does the reticulated siren's nickname "leopard eel" come from?

Local observers gave the species the nickname leopard eel well before its formal scientific description, inspired by its striking dark, net-like reticulated pattern spread across an elongated, eel-like body, a marking distinctive enough to set it apart from other sirens even to the untrained eye.

Does the reticulated siren have back legs?

No, like other members of the siren family, the reticulated siren has only a small pair of front legs and completely lacks hind limbs, relying instead on its long body and finned tail to move through the shallow wetland water it inhabits.

How does the reticulated siren survive when its wetland dries up?

When its shallow, seasonal wetland habitat dries out, the reticulated siren can burrow into the mud and enter a dormant state, conserving energy and moisture until rain returns the water it depends on, a survival strategy shared with several of its siren relatives.

Sources & further reading