''Isancistrum'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

monogenea Monogeneans are a group of ectoparasitic flatworms commonly found on the skin, gills, or fins of fish. They have a direct lifecycle and do not require an intermediate host. Adults are hermaphrodites, meaning they have both male and female reprod ...

ns in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Gyrodactylidae ''Gyrodactylidae'' is a family of flatworms in the order Gyrodactylidea Gyrodactylidea is an order of monogenean parasitic flatworms in the subclass Monopisthocotylea The Monopisthocotylea are a subclass of parasitic flatworms in the class ...

. Unlike most monogeneans which are parasitic on

fish Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of li ...

or other

vertebrates Vertebrates () comprise all animal taxa within the subphylum Vertebrata () ( chordates with backbones), including all mammals, birds, reptiles, amphibians, and fish. Vertebrates represent the overwhelming majority of the phylum Chordata, ...

, species of ''Isancistrum'' are parasitic on squids ( molluscs).

Species

*'' Isancistrum loliginis'' de Beauchamp, 1912 *'' Isancistrum subulatae'' Llewellyn, 1984Llewellyn, J. (1984). The biology of ''Isancistrum subulatae'' n. sp., a monogenean parasitic on the squid, ''Alloteuthis subulata'', at Plymouth. ''Journal of the Marine Biological Association of the United Kingdom'', 64(2), 285–302.

References

Gyrodactylidae Monogenea genera {{monogenea-stub