''Polymorphus'' is a genus of parasitic worms from the

phylum In biology, a phylum (; plural: phyla) is a level of classification or taxonomic rank below kingdom and above class. Traditionally, in botany the term division has been used instead of phylum, although the International Code of Nomenclature f ...

Acanthocephala. This group uses amphipod crustaceans as intermediate hosts and various birds as final hosts. The genus used to be a larger group, but species that were formerly placed in the genus have now been placed in the genus ''Profilicollis'' based on morphological characteristics and the use of decapod crustaceans as intermediate hosts.B.B. Nickol, D.W.T. Crompton, and D.W. Searle (1999). "Reintroduction of ''Profilicollis'' Meyer, 1931, as a genus in Acanthocephala: Significance of the intermediate host." ''Journal of Parasitology'' 85(4):716-718

Species

* '' Polymorphus actuganensis'' Petrochenko, 1949 * '' Polymorphus acutis'' Van Cleave and Starrett, 1940 * '' Polymorphus arctocephali'' Smales, 1986 * '' Polymorphus ariusis'' (Bilqees, 1971) * '' Polymorphus biziurae'' Johnston and Edmonds, 1948 * '' Polymorphus boschadis'' (Schrank, 1788) * '' Polymorphus brevis'' (Van Cleave, 1916) * '' Polymorphus chongqingensis'' Liu, Zhang and Zhang, 1990 * '' Polymorphus cincli'' Belopolskaya, 1959 * '' Polymorphus contortus'' (Bremser in Westrumb, 1821) * '' Polymorphus corynoides'' Skrjabin, 1913 * '' Polymorphus corynosoma'' Travassos, 1915 * '' Polymorphus crassus'' Van Cleave, 1924 * ''

Polymorphus cucullatus ''Polymorphus'' is a genus of parasitic worms from the phylum Acanthocephala. This group uses amphipod crustaceans as intermediate hosts and various birds as final hosts. The genus used to be a larger group, but species that were formerly place ...

'' Van Cleave and Starrett, 1940 * '' Polymorphus diploinflatus'' Lundström, 1942 * ''

Polymorphus fatimaae ''Polymorphus fatimaae'' is a species of Acanthocephala in the family Polymorphidae. It was first described in 2008. It can be found in Hyderabad, Sindh Hyderabad ( Sindhi and ur, ; ) is a city and the capital of Hyderabad Division in ...

'' Khan, Dharejo, Birmani and Bilqees, 2008 * '' Polymorphus fulicai'' Birmani, Dharejo and Khan, 2011 * '' Polymorphus gavii'' Hokhlova, 1965 * ''

Polymorphus inermis ''Polymorphus'' is a genus of parasitic worms from the phylum Acanthocephala. This group uses amphipod crustaceans as intermediate hosts and various birds as final hosts. The genus used to be a larger group, but species that were formerly place ...

'' Travassos, 1923 * ''

Polymorphus karachiensis ''Polymorphus'' is a genus of parasitic worms from the phylum Acanthocephala. This group uses amphipod crustaceans as intermediate hosts and various birds as final hosts. The genus used to be a larger group, but species that were formerly place ...

'' (Bilqees, 1971) * ''

Polymorphus kostylewi ''Polymorphus'' is a genus of parasitic worms from the phylum Acanthocephala. This group uses amphipod crustaceans as intermediate hosts and various birds as final hosts. The genus used to be a larger group, but species that were formerly place ...

'' Petrochenko, 1949 * ''

Polymorphus magnus ''Polymorphus'' is a genus of parasitic worms from the phylum Acanthocephala. This group uses amphipod crustaceans as intermediate hosts and various birds as final hosts. The genus used to be a larger group, but species that were formerly place ...

'' Skrjabin, 1913 * ''

Polymorphus marchii ''Polymorphus'' is a genus of parasitic worms from the phylum Acanthocephala. This group uses amphipod crustaceans as intermediate hosts and various birds as final hosts. The genus used to be a larger group, but species that were formerly place ...

'' (Porta, 1910) * ''

Polymorphus marilis ''Polymorphus'' is a genus of parasitic worms from the phylum Acanthocephala. This group uses amphipod crustaceans as intermediate hosts and various birds as final hosts. The genus used to be a larger group, but species that were formerly place ...

'' Van Cleave, 1939 * ''

Polymorphus mathevossianae ''Polymorphus'' is a genus of parasitic worms from the phylum Acanthocephala. This group uses amphipod crustaceans as intermediate hosts and various birds as final hosts. The genus used to be a larger group, but species that were formerly place ...

'' Petrochenko, 1949 * ''

Polymorphus meyeri ''Polymorphus'' is a genus of parasitic worms from the phylum Acanthocephala. This group uses amphipod crustaceans as intermediate hosts and various birds as final hosts. The genus used to be a larger group, but species that were formerly place ...

'' Lundström, 1942 * ''

Polymorphus miniatus ''Polymorphus'' is a genus of parasitic worms from the phylum Acanthocephala. This group uses amphipod crustaceans as intermediate hosts and various birds as final hosts. The genus used to be a larger group, but species that were formerly place ...

'' (von Linstow, 1896) * ''

Polymorphus minutus ''Polymorphus minutus'' is a species of Acanthocephala in the family Polymorphidae. They can grow up to 12.5 mm. It is an economically significant parasite in goose and duck farming. References Parasites Polymorphidae Acanthoceph ...

'' (Goeze, 1782) * ''

Polymorphus mohiuddini ''Polymorphus'' is a genus of parasitic worms from the phylum Acanthocephala. This group uses amphipod crustaceans as intermediate hosts and various birds as final hosts. The genus used to be a larger group, but species that were formerly place ...

'' Muti-ur-Rahman, Khan, Bilqees and Khatoon, 2008 * ''

Polymorphus mutabilis ''Polymorphus'' is a genus of parasitic worms from the phylum Acanthocephala. This group uses amphipod crustaceans as intermediate hosts and various birds as final hosts. The genus used to be a larger group, but species that were formerly place ...

'' (Rudolphi, 1819) * '' Polymorphus nickoli'' Khan and Bilqees, 1998 * '' Polymorphus obtusus'' Van Cleave, 1918 * '' Polymorphus paradoxus'' Connell and Corner, 1957 * '' Polymorphus paucihamatus'' Heinze, 1936 * '' Polymorphus phippsi'' Kostylew, 1922 * '' Polymorphus piriformis'' (Bremser in Rudolphi, 1819) * '' Polymorphus pupa'' (von Linstow, 1905) * '' Polymorphus sichuanensis'' Wang and Zhang, 1987 * '' Polymorphus sindensis'' Khan, Ghazi and Bilqees, 2002 * '' Polymorphus spindlatus'' Amin and Heckmann, 1991 * '' Polymorphus striatus'' (Goeze, 1782) * '' Polymorphus strumosoides'' Lundström, 1942 * '' Polymorphus swartzi'' Schmidt, 1965 * '' Polymorphus trochus'' Van Cleave, 1945

References

{{Taxonbar, from=Q150470 Polymorphidae Acanthocephala genera Parasites of birds