Tanaorhamphus

Tanaorhamphus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Acanthocephala
Class:	Eoacanthocephala
Order:	Neoechinorhynchida
Family:	Neoechinorhynchidae
Subfamily:	Atactorhynchinae
Genus:	Tanaorhamphus Ward, 1918
Species:	T. longirostris
Binomial name
Tanaorhamphus longirostris (Van Cleave, 1913)
Synonyms
Neoechinorhynchus longirostris (Van Cleave, 1913) Neorhynchus longirostris Van Cleave, 1913

Tanaorhamphus is a monotypic genus of acanthocephalans (thorny-headed or spiny-headed parasitic worms) containing a single species, Tanaorhamphus longirostris, that infests animals.

Taxonomy

The species was described by Van Cleave in 1913 but under the Neorhynchus genus. ^{[1] [2]} The National Center for Biotechnology Information does not indicate that any phylogenetic analysis has been published on Tanaorhamphus that would confirm its position as a unique order in the family Neoechinorhynchidae. ^[3]

Description

T. longirostris consists of a proboscis covered in hooks, a proboscis receptacle, and a long trunk.^{[ citation needed ]}

Distribution

The distribution of T. longirostris is determined by that of its hosts.^{[ citation needed ]}

Hosts

Life cycle of Acanthocephala.

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 Tanaorhamphus 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 are 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 Tanaorhamphus. ^[6]

T. longirostris parasitizes animals. There are no reported cases of T. longirostris infesting humans in the English language medical literature. ^[5]

• Hosts for Tanaorhamphus longirostris

Notes

1. There are no known aberrant human infections for T. longirostris species. ^[5]

References

1. Van Cleave, H. J. (1913). "4. The Genus Neorhynchus in North America". Zoologischer Anzeiger. 43 (4): 177–190. Retrieved 15 July 2024– via Biodiversity Heritage Library.
2. Hubschman, Jerry H. (1985). "TANAORHAMPHUS LONGIROSTRIS (ACANTHOCEPHALA) IN GIZZARD SHAD FROM CAESAR CREEK LAKE, OHIO". Ohio Journal of Science. 85 (1): 7–11. Retrieved 15 July 2024– via The Ohio State University Libraries Knowledge Bank.
3. Schoch, Conrad L; Ciufo, Stacy; Domrachev, Mikhail; Hotton, Carol L; Kannan, Sivakumar; Khovanskaya, Rogneda; Leipe, Detlef; Mcveigh, Richard; O’Neill, Kathleen; Robbertse, Barbara; Sharma, Shobha; Soussov, Vladimir; Sullivan, John P; Sun, Lu; Turner, Seán; Karsch-Mizrachi, Ilene (2020). "NCBI Taxonomy: a comprehensive update on curation, resources and tools". Taxonomy Browser. NCBI. Retrieved 1 April 2024.
4. CDC’s Division of Parasitic Diseases and Malaria (11 April 2019). "Acanthocephaliasis". www.cdc.gov. Center for Disease Control. Archived from the original on 8 June 2023. Retrieved 17 July 2023.
5. Mathison, BA; et al. (2021). "Human Acanthocephaliasis: a Thorn in the Side of Parasite Diagnostics". J Clin Microbiol. 59 (11): e02691-20. doi:10.1128/JCM.02691-20. PMC   8525584 . PMID   34076470.
6. Schmidt, G.D. (1985). "Development and life cycles". In Crompton, D.W.T.; Nickol, B.B. (eds.). Biology of the Acanthocephala (PDF). Cambridge: Cambridge Univ. Press. pp. 273–305. Archived (PDF) from the original on 22 July 2023. Retrieved 16 July 2023.