Traits (2024). Pheretima varians Y. Chen, 1938. Accessed at: https://www.marinespecies.org/traits./aphia.php?p=taxdetails&id=1071873 on 2024-09-05
Marine Species Traits editorial board (2024). Marine Species Traits. Pheretima varians Y. Chen, 1938. Accessed at: https://marinespecies.org/traits./aphia.php?p=taxdetails&id=1071873 on 2024-09-05