Stichocotyle is a monospecific genus of trematodes, in the monospecific family Stichocotylidae, which is itself in the monotypic order Stichocotylida. It comprises the single species Stichocotyle nephropis, which is an internal parasite of elasmobranch fishes. It was originally described from the Norway lobster, Nephrops norvegicus, by J. T. Cunningham in 1884.[4] This flatworm is distinguished by a single ventral row of well separated suckers.
| Stichocotyle | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Class: | Trematoda |
| Subclass: | Aspidogastrea |
| Order: | Stichocotylida Gibson & Chinabut, 1984[3] |
| Family: | Stichocotylidae Faust & Tang, 1936[2] |
| Genus: | Stichocotyle Cunningham, 1884[1] |
| Species: | S. nephropis
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| Binomial name | |
| Stichocotyle nephropis Cunningham, 1884[1]
| |
Stichocotyle has not been seen since 1986, and it is possible that it is extinct.[5] Like many parasites, it relied on multiple hosts, and its disappearance is hypothesized to be associated with declines in some of these hosts.[6] The thornback ray Raja clavata and the barndoor skate Dipturus laevis were hosts for the adult form, and have declined because they are killed as bycatch in fisheries. The thornback ray is listed as "Near Threatened," and the barndoor skate is globally listed as "Endangered" on the IUCN Red List.
References edit
- ^ a b Cunningham, J. T. (1884). A new marine trematode belonging to the Polystomidae. Zoologischer Anzeiger, 7, 399.
- ^ Faust, E. & Tang, C. (1936). Notes on new aspidogastrid species, with a consideration of the phylogeny of the group. Parasitology, 28(4), 487–501.
- ^ Gibson, D. & Chinabut, S. (1984). Rohdella siamensis gen. et sp. nov. (Aspidogastridae: Rohdellinae subfam. nov.) from fresh water fishes in Thailand, with a reorganization of the classification of the subclass Aspidogastrea. Parasitology, 88(3), 383–393.
- ^ Grant D. Stentiford; Douglas M. Neil (2011). Grant Stentiford (ed.). "Diseases of Nephrops and Metanephrops: a review". Journal of Invertebrate Pathology. 106 (1): 92–109. doi:10.1016/j.jip.2010.09.017. PMID 21215358.
- ^ Platt (2017). "Parasite Lost: Did Our Taste for Seafood Just Cause an Extinction?". The Revelator.
- ^ K. MacKenzie & C. Pert (2018). "Evidence for the decline and possible extinction of a marine parasite species caused by intensive fishing". Fisheries Research. 198: 63–65. doi:10.1016/j.fishres.2017.10.014.
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