[3] This implies that this species cannot be imported, bred, transported, commercialized, or intentionally released into the environment in the whole of the European Union.

During the day, flatworms can be found resting on the surface of soil underneath objects in close contact with the ground.

When it starts to move, it uncurls, at the same time as the circular muscles beneath the epidermal cells at the anterior end contract.

[citation needed] The New Zealand flatworm is an invasive species in Europe, feeding there almost exclusively on earthworms.

European earthworm predators are reluctant to eat it although cases of frogs and beetle larvae consuming flatworms have been recorded.

The New Zealand flatworm is easily transported accidentally in plant pots in adult or egg form.

[11] The complete mitogenome of the New Zealand flatworm is 20,309 bp in length and contains repetitions that includes two types of tandem-repeats.