The family Argulidae, whose members are commonly known as carp lice or fish lice, are parasitic crustaceans in the class Ichthyostraca. It is the only family in the monotypic subclass Branchiura and the order Arguloida, although a second family, Dipteropeltidae, has been proposed. Although they are thought to be primitive forms, they have no fossil record.
Incamyia is a genus of parasitic flies in the family Tachinidae.
Incamyiopsis is a genus of parasitic flies in the family Tachinidae.
Euptilopareia is a genus of bristle flies in the family Tachinidae.
Micronychiops is a genus of parasitic flies in the family Tachinidae. There is one described species in Micronychiops, M. aurescens.
Nilea is a genus of flies in the family Tachinidae.
Ophirodexia is a genus of parasitic flies in the family Tachinidae. There is one described species in Ophirodexia, O. pulchra.
Pachynocera is a genus of parasitic flies in the family Tachinidae.
Proroglutea is a genus of parasitic flies in the family Tachinidae.
Thelairochaetona is a genus of parasitic flies in the family Tachinidae.
Angustia is a genus of flies in the family Tachinidae.
Eugnathogobius is a genus of gobies native to fresh, brackish and marine waters of the Indian Ocean and the western Pacific Ocean region.
Argulus foliaceus, also known as the common fish louse, is a species of fish lice in the family Argulidae. It is "the most common and widespread native argulid in the Palaearctic" and "one of the most widespread crustacean ectoparasites of freshwater fish in the world", considering its distribution and range of hosts. It can cause the severe disease state argulosis in a wide variety of fish species. It is responsible for epizootic outbreaks that have led to the collapse of aquaculture operations. Fish lice are not related to lice, which are insects.
Argulus japonicus, also known as the Japanese fish louse, is a species of crustacean in the family Argulidae. This species is light brown in colour and may be between 4 and 9 mm long and 3 to 6 mm wide. It has a stumpy tail, and is shaped somewhat like a round shield. The female and male are phenotypically distinct, categorizing them as a dioecious species. Although they are not drastically different, their transparent skin highlights the minor differences such as the different copulatory accessories.
Peniculisa is a genus of marine parasitic copepods in the family Pennellidae.
Heterosaccus is a genus of barnacles in infraclass Rhizocephala. Like other taxa in this group, they parasitize crabs. Geoffroy Smith circumscribed the genus in 1906; he initially only included H. hians. Smith circumscribed a genus distinct from Sacculina due to a difference of the mesentery; in Heterosaccus, the mesentery does not stretch down to the mantle opening but rather only is present on the ring of attachment.
Cardiodectes is a genus of copepods in the family Pennellidae. Species are parasites of fish.
Cardiodectes bellottii is a species of copepods in the family Pennellidae. It is a parasite of fish. It is found in the Atlantic and Pacific Oceans as well as the Mediterranean Sea; specimens from the Pacific were formerly treated as a separate species, Cardiodectes medusaeus.
Microcotyle otrynteri is a species of monogenean, parasitic on the gills of a marine fish. It belongs to the family Microcotylidae.
The carp louse Argulus coregoni is an obligate ectoparasitic branciuran species on fish. It occurs in China and Japan, and Scandinavia. Argulus coregoni can pose a threat to fish kept in fish farms.
