Polymorphus

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 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.

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 Van Cleave and Starrett, 1940
 * Polymorphus diploinflatus Lundström, 1942
 * Polymorphus fatimaae Khan, Dharejo, Birmani and Bilqees, 2008
 * Polymorphus fulicai Birmani, Dharejo and Khan, 2011
 * Polymorphus gavii Hokhlova, 1965
 * Polymorphus inermis Travassos, 1923
 * Polymorphus karachiensis (Bilqees, 1971)
 * Polymorphus kostylewi Petrochenko, 1949
 * Polymorphus magnus Skrjabin, 1913
 * Polymorphus marchii (Porta, 1910)
 * Polymorphus marilis Van Cleave, 1939
 * Polymorphus mathevossianae Petrochenko, 1949
 * Polymorphus meyeri Lundström, 1942
 * Polymorphus miniatus (von Linstow, 1896)
 * Polymorphus minutus (Goeze, 1782)
 * Polymorphus mohiuddini Muti-ur-Rahman, Khan, Bilqees and Khatoon, 2008
 * Polymorphus mutabilis (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