Joyeuxiella pasqualei
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Comment: Earwig shows a 48.7% match. Looking at the source itself, there are entire passages lifted from the above link. Pbritti (talk) 19:46, 20 April 2023 (UTC)
| Joyeuxiella pasqualei | |
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Scientific classification 
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| Missing taxonomy template (fix): | Joyeuxiella pasqualei |
Joyeuxiella pasquale is a species of flatworm, belonging to the family Dipylidiidae.[1] The species uses coprophagous beetles and reptiles as transportation hosts with dogs, cats, and other wild carnivores being their final carrier for reproduction.
Description
J. pasqualei has a scolex with four suckers and a retractable cylindric rostellum with thorn-like hooks. Structurally, the adult parasite form is similar to Dipylidium caninum, which can lead to confusion in identification, but only in its small to medium size. Distinction can be made in the gravid proglottid egg packets, which contain only a single hexacanth embryo covered by uterine material in the genus Joyeuxiella compared to Dipylidium. Within the hexacanth embryo, three pairs of hooklets are often visible. Additionally, specimens of Joyeuxiella can be distinguished from Diplopylidium because the former has rose-thorn shaped hooks, whereas the latter has claw-hammer shaped hooks similar to taeniid tapeworms. Paired genital atria are found in the anterior half of each tapeworm segment.[2]
J. pasqualei has a conical rostellum with egg capsules located mediolaterally to longitudinal excretory (osmoregulatory) vessels. Testes are anterior to the vasa deferentia. Joyeuxiella fuhrmanni, on the other hand, is similar in shape to J. pasqualei, but it has no testes anterior to the vas deferens and the egg capsules are located medially to the longitudinal excretory vessels. Joyeuxiella echinorhynchoides have a long, cylindrical rostellum as well as egg capsules located medial to the longitudinal excretory canals.[2]
Life cycle
Although J. pasqualei is frequently detected in cats in southern Europe,[3] information on its biology is scarce. These flatworms utilize coprophagous beetles and reptiles as transportation hosts with dogs, cats, and other wild carnivores being the final carrier. The reptile Tarentola mauritanica were found to have natural infections of J. pasqualei attached to the intestine with cysts in the liver. Experiments have shown that rodents cannot be infected by direct ingestion of gravid proglottids, suggesting that an invertebrate first intermediate host, such as coprophagous beetles, is necessary to complete the life cycle. However, the first intermediate host of J. pasqualei has not been definitively determined.[4]
References
- ^ "Joyeuxiella pasqualei (Diamara, 1893)". www.gbif.org. Retrieved 3 September 2023.
- ^ a b "Joyeuxiella pasqualei". American Association of Veterinary Parasitologists. Archived from the original on 9 November 2015.
- ^ Papazoglou, L. G.; Diakou, A.; Patsikas, M. N.; Anagnostou, T.; Vagiatis, I.; Papastefanou, A.; Kosmas, P. (November 2006). "Intestinal pleating associated with Joyeuxiella pasqualei infection in a cat". Veterinary Record. 159 (19): 634–635. doi:10.1136/VR.159.19.634. PMID 17088300. S2CID 13437043.
- ^ Bezerra-Santos, Marcos Antonio; Mendoza-Roldan, Jairo Alfonso; Lia, Riccardo Paolo; Annoscia, Giada; Schuster, Rolf; Varcasia, Antonio; Sgroi, Giovanni; Modry, David; Otranto, Domenico (27 September 2022). "Description of Joyeuxiella pasqualei (Cestoda: Dipylidiidae) from an Italian domestic dog, with a call for further research on its first intermediate host". Parasitology. 149 (13): 1769–1774. doi:10.1017/S0031182022001342. ISSN 0031-1820. PMID 36165289. S2CID 252541538.