| Eocollis | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Acanthocephala |
| Class: | Eoacanthocephala |
| Order: | Neoechinorhynchida |
| Family: | Neoechinorhynchidae |
| Genus: | Eocollis Van Cleve, 1947 [1] |
| Type species | |
| Eocollis arcanus Van Cleve, 1947 | |
| Species | |
Eocollis is a genus in Acanthocephala (thorny-headed worms, also known as spiny-headed worms).
The genus was described by Van Cleve in 1947. The National Center for Biotechnology Information does not indicate that any phylogenetic analysis has been published on Eocollis that would confirm its position as a unique order in the family Neoechinorhynchidae. [2]
Eocollis species consist of a proboscis covered in hooks and a long trunk.
The genus EocollisVan Cleve, 1947 contains three species.
The distribution of Eocollis is determined by that of its hosts.
The life cycle of an acanthocephalan consists of three stages beginning when an infective acanthor (development of an egg) is released from the intestines of the definitive host and then ingested by an arthropod, the intermediate host. Although the intermediate hosts of Eocollis are ???. When the acanthor molts, the second stage called the acanthella begins. This stage involves penetrating the wall of the mesenteron or the intestine of the intermediate host and growing. The final stage is the infective cystacanth which is the larval or juvenile state of an Acanthocephalan, differing from the adult only in size and stage of sexual development. The cystacanths within the intermediate hosts are consumed by the definitive host, usually attaching to the walls of the intestines, and as adults they reproduce sexually in the intestines. The acanthor is passed in the feces of the definitive host and the cycle repeats. There may be paratenic hosts (hosts where parasites infest but do not undergo larval development or sexual reproduction) for Eocollis. [6]
Eocollis parasitizes fish. [7] There are no reported cases of Eocollis infesting humans in the English language medical literature. [5]
Cucullanorhynchus is a monotypic genus of acanthocephalans. It contains a single species, Cucullanorhynchus constrictruncatus, which infests leopards in Vietnam.
Multisentis is a monotypic genus of acanthocephalans. It contains a single species, Multisentis myrmecobius , parasite of the numbat from which it derives its species name. It was found in south-western Australia.
Floridosentis is a genus in Acanthocephala.
Tanaorhamphus is a monotypic genus of acanthocephalans containing a single species, Tanaorhamphus longirostris, that infests animals.
Golvanacanthus is a monotypic genus of acanthocephalans containing a single species, Golvanacanthus blennii, that infests animals.
Quadrigyrus is a genus in Acanthocephala.
Triaspiron is a monotypic genus of acanthocephalans containing a single species, Triaspiron aphanii.
Caballerorhynchus is a monotypic genus of acanthocephalans containing a single species, Caballerorhynchus lamothei, that infests animals.
Femogibbosus is a monotypic genus of acanthocephalans containing a single species, Femogibbosus assi, that infests animals.
Pallisentis is a genus in Acanthocephala.
Gracilisentis is a genus in Acanthocephala.
Pandosentis is a genus in Acanthocephala.
Wolffhugelia is a monotypic genus of acanthocephalans containing a single species, Wolffhugelia matercula, that infests animals.
Microsentis is a monotypic genus of worms belonging to the family Neoechinorhynchidae.
Dispiron is a genus in Acanthocephala belonging to the family Neoechinorhynchidae.
Hexaspiron is a genus in Acanthocephala belonging to the family Neoechinorhynchidae.
Gorytocephalus is a genus in Acanthocephala belonging to the family Neoechinorhynchidae.
Octospinifer is a genus in Acanthocephala belonging to the family Neoechinorhynchidae.
Octospiniferoides is a genus in Acanthocephala belonging to the family Neoechinorhynchidae.
Paraechinorhynchus is a monotypic genus of acanthocephalans containing a single species, Paraechinorhynchus kalriai, that infests the rohu.