Dojiri, M. & Deets, G.B. (1988)
Norkus cladocephalus, new Genus, new species (Siphonostomatoida: Sphyriidae), a copepod parasitic on an elasmobranch from southern California waters, with a phylogenetic analysis of the Sphyriidae.
Journal of Crustacean Biology, 8(4), 679–687