The greater siren (Siren lacertina) is an eel-like amphibian.

Some amphibians (e.g. the cane toad and greater siren) aestivate during the hot dry season by moving underground where it is cooler and more humid.

His zoological interests led Garden to write about cochineal insects and about the greater siren, (Sirena lacertina), once called the mud iguana.

The specific epithet intermedia denotes their intermediate size, between the greater siren, Siren lacertina, and the dwarf sirens, Pseudobranchus spp.

It is one of four amphisbaenians that have legs, and the only non-extinct species of animal to have only two limbs, apart from the Lesser and Greater Siren.

The greater siren (Siren lacertina) is an eel-like amphibian.

The specific epithet intermedia denotes their intermediate size, between the greater siren, Siren lacertina, and the dwarf sirens, Pseudobranchus spp.

The Architectural gear ratio is explained through the segmented muscle model 3 proposed by Emanuel Azizi, where a muscle segment is shown as a single muscle fiber attached to the myosepta of a Siren lacertina an aquatic salamander at a certain acute, pennation angle.