Palaeacanthocephala

Class of thorny-headed worms

Palaeacanthocephala

Proboscis of a Rhadinorhynchus species
Scientific classification
Kingdom:  | Animalia
Phylum:  | Acanthocephala
Class:  | Palaeacanthocephala
Meyer, 1931
Order

* Echinorhynchida
* Heteramorphida
* Polymorphida

Two paleoacanthocephalans, Heterosentis mongcai Amin, Heckmann & Ha, 2014 and Filisoma indicum Van Cleave, 1928

Palaeacanthocephala ("ancient thornheads") is a class within the phylum Acanthocephala. The adults of these parasitic platyzoans feed mainly on fish, aquatic birds and mammals. This order is characterized by the presence of lateral longitudinal lacunar canals and a double-walled proboscis receptacle.[1] The nuclei of the hypodermis (outer layer of skin) are fragmented and the males have two to seven cement glands, unlike their relatives the Archiacanthocephala, which always have eight.

There are three orders in the class Palaeacanthocephala:[2]

* Echinorhynchida Southwell and Macfie, 1925
* Heteramorphida Amin and Ha, 2008
* Polymorphida Petrochenko, 1956

## References[edit]

1. ^ Bursey, C. R., Goldberg, S. R., & Kraus, F. (2007). New family, new genus, new species of Acanthocephala (Echinorhynchida) from the lizard, Sphenomorphus granulatus (Sauria: Scincidae), from Papua New Guinea. Open Parasitology Journal, 1, 41-44. Found at: https://benthamopen.com/contents/pdf/TOPARAJ/TOPARAJ-1-7.pdf
2. ^ "ITIS - Report: Palaeacanthocephala".

Wikispecies has information related to Palaeacanthocephala.

Taxon identifiers|

* Wikidata: Q134946
* Wikispecies: Palaeacanthocephala
* ADW: Palaeacanthocephala
* BOLD: 24840
* CoL: FN
* EoL: 19
* Fauna Europaea: 15466
* Fauna Europaea (new): 49ab517c-940a-4e36-9bf0-95159d1cf8ff
* GBIF: 254
* iNaturalist: 152109
* IRMNG: 1222
* ITIS: 196823
* NCBI: 45080
* WoRMS: 20285

|

This acanthocephalan-related article is a stub. You can help Wikipedia by expanding it.

|

* v
* t
* e

*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template