original description: Harmer S (1905) The Pterobranchia of the Siboga Expedition. Siboga Expedition Monograph. pp. 1-31. [details]
basis of record: UNESCO-IOC Register of Marine Organisms (look up in IMIS) [details]
additional source: Dilly P (1985) The habitat and behaviour of Cephalodiscus gracilis (Pterobranchia, Hemichordata) from Bermuda. Journal of Zoology 207: 223-239. [details]
Citation: van der Land, J. (2013). Cephalodiscus gracilis Harmer, 1905. In: Shenkar, N; Swalla, B.J.; van der Land, J. (2013) Hemichordata World Database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=266750 on 2013-05-25