Kamura, S.; Hashimoto, H. (2004). “The food habits of four species of triakid sharks, Triakis scyllium, Hemitriakis japanica, Mustelus griseus and Mustelus manazo, in the central Seto Inland Sea, Japan”. Fisheries Science70 (6): 1019–1035. doi:10.1111/j.1444-2906.2004.00902.x.
Izawa, K. (2008). “Redescription of four species of Kroyeria and Kroeyerina (Copepoda, Siphonostomatoida, Kroyeriidae) infecting Japanese sharks”. Crustaceana81 (6): 695–724. doi:10.1163/156854008784513465.