World Register of Marine Species (WoRMS)
Sphaerolaimus paradoxus var. crassus Timm, 1961
Nemys eds. (2026). Nemys: World Database of Nematodes. Sphaerolaimus paradoxus var. crassus Timm, 1961. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=987285 on 2026-08-02
Timm, R. W. (1961). The Marine Nematodes of the Bay of Bengal. Proceedings of the Pakistan Academy of Science. 1(1): 25-88.