Swalla, B.J.; van der Land, J. (2021). Hemichordata World Database. Harrimaniidae Spengel, 1901. Accessed through: Craeymeersh J., P. Kingston, E. Rachor, G. Duineveld, C. Heip., E. Vanden Berghe (1986) North Sea Benthos Survey (NSBS) at: http://www.vliz.be/vmdcdata/nsbs/aphia.php?p=taxdetails&id=2018 on 2024-04-24
Craeymeersh J., P. Kingston, E. Rachor, G. Duineveld, C. Heip., E. Vanden Berghe (1986). North Sea Benthos Survey (NSBS). Harrimaniidae Spengel, 1901. Accessed at: https://www.vliz.be/vmdcdata/nsbs/aphia.php?p=taxdetails&id=2018 on 2024-04-24