Organisms from this genus are often found attached to the bodies and fins of fishes in the South Pacific and Indian oceans. Individual fishes have been reported to harbor hundreds of Peniculisa wilsoni parasites. Infection intensity is rarely cited for other Peniculisa species. Peniculisa parasitic infections tend to be limited to tetraodontiform and pomacentrid fishes.
12A. Chandran & P. Natarajan (1991). "Record of new hosts for Peniculisa wilsoni Radhakrishnan, 1977 (Copepoda, Pennellidae)". Crustaceana. 61 (1): 107–108. doi:10.1163/156854091X00605.
↑Geoffrey A. Boxshall (1989). "Parasitic copepods of fishes: a new genus of the Hatschekiidae from New Caledonia, and new records of the Pennellidae, Sphyriidae and Lernanthropidae from the South Atlantic and South Pacific". Systematic Parasitology. 13 (3): 201–222. doi:10.1007/BF00009746. S2CID20948353.
↑Kunihiko Izawa (1997). "The copepodid of Peniculisa shiinoi Izawa, 1965 (Copepoda, Siphonostomatoida, Pennellidae), a single free-swimming larval stage of the species". Crustaceana. 70 (8): 911–919. doi:10.1163/156854097X00537.
↑Kunihiko Izawa (1965). "A new parasitic copepod of the genus Peniculisa Wilson from Seto, Wakayama Prefecture, Japan". Report of the Faculty of Fisheries, Prefectural University of Mie. 5: 365–374.