Iwama RE, Oceguera-Figueroa A, de Carle D, Manglicmot C, Erséus C, Miles NM-S, Siddall ME, Kvist S.

Broad geographic sampling and DNA barcoding do not support the presence of Helobdella stagnalis (Linnaeus, 1758) (Clitellata: Glossiphoniidae) in North America

. Zootaxa [Internet]. 2019 Sep. 16 [cited 2025 Apr. 3];4671(1):1–25. Available from: https://mapress.com/zt/article/view/zootaxa.4671.1.1