Pachysentis is a genus in Acanthocephala (thorny-headed worms, also known as spiny-headed worms) that parasitize primates and carnivorans. They are distributed across Africa, the Middle East, and the Americas. Pachysentis species attach themselves to the inner lining of the gastrointestinal tract of their hosts using their hook-covered proboscis. Their life cycle includes an egg stage found in host feces, a cystacanth (larval) stage in an intermediate host such as the Egyptian cobra, and an adult stage where cystacanths mature in the intestines of the host. This genus appears identical to the closely related Oncicola apart from a greater number of hooks on the proboscis. There are eleven species assigned to this genus, although P. septemserialis is of uncertain taxonomic status. The female worms range from 12 millimetres (0.47 in) long and 1.6 millimetres (0.063 in) wide in P. lauroi to 50 millimetres (2.0 in) long and 4 millimetres (0.16 in) wide in P. dollfusi. Virtually all of the length is the trunk, with a short proboscis. There is pronounced sexual dimorphism in this species as females are around twice the size of the males.
^Meyer, A (1931). "Neue Acanthocephalen aus dem Berliner Museum. Burgrundung eines neue Acanthocephalen systems auf Grund einer Untersuchung der Berliner Sammlung" [New Acanthocephala from the Berlin Museum. Foundation of a new Acanthocephala system based on an investigation of the Berlin collection.]. Zoologische Jahrbücher, Abteilung für Systematik, Ökologie und Geographie der Tiere (in German). 62: 53–108.
^Cite error: The named reference Gomes 2019 was invoked but never defined (see the help page).
Prosthenorchis genus and one species from the Oncicola genus into the genus Pachysentis. Pachysentis looks identical to the closely related Oncicola apart from the...
found to be a host of an intestinal acanthocephalan parasitic worm, Pachysentis lauroi. Females typically live in large groups, called bands, consisting...
other snakes. It is an intermediate host of the acanthocephalan parasite Pachysentis ehrenbergi. The venom of the Egyptian cobra consists mainly of neurotoxins...
Texas was found to be a host of an intestinal acanthocephalan worm, Pachysentis canicola. The striped skunk is commonly featured in the myths and oral...
an intermediate host of an intestinal acanthocephalan parasitic worm, Pachysentis canicola. They are one of the few species of snakes that engage in scavenging...
possesses 30 hooks, as opposed to 36 for Oncicola and more than 36 for Pachysentis. The genus Nephridiacanthus Meyer, 1931 contains eight species. The genus...
R.; Barbosa, Helene S.; Maldonado, Arnaldo (2019). "A New Species of Pachysentis Meyer, 1931 (Acanthocephala: Oligacanthorhynchidae) in the Brown-Nosed...
found to be a host of an intestinal acanthocephalan parasitic worm, Pachysentis gethi. Tayras breed year-round, with the females entering estrus several...
parasitic acanthocephalan worms, Pachysentis canicola in Bushehr Province, Iran, Pachysentis procumbens and Pachysentis ehrenbergi in both in Egypt. Red...
found to be a host of an intestinal acanthocephalan parasitic worm, Pachysentis gethi. Lesser grisons can be tamed if raised from a young age. They were...
Texas was found to be a host of an intestinal acanthocephalan worm, Pachysentis canicola. The maned wolf participates in symbiotic relationships. It...
Hridaya S. (2022-03-01). "Redescription and Molecular Characterization of Pachysentis canicola Meyer, 1931 (Acanthocephala: Oligacanthorhynchidae) from the...
Oncicola, a genus morphologically nearly identical to Neoncicola and Pachysentis apart from the number of hooks on the proboscis, and have also placed...
R.; Barbosa, Helene S.; Maldonado, Arnaldo (2019). "A New Species of Pachysentis Meyer, 1931 (Acanthocephala: Oligacanthorhynchidae) in the Brown-Nosed...
was found to be a host of an intestinal acanthocephalan parasitic worm,Pachysentis dollfusi. It is unknown if the worm originates from Brazil or Madagascar...
R.; Barbosa, Helene S.; Maldonado, Arnaldo (2019). "A New Species of Pachysentis Meyer, 1931 (Acanthocephala: Oligacanthorhynchidae) in the Brown-Nosed...
predator attacks. It is a host of the acanthocephalan intestinal parasite Pachysentis rugosus. The tufted capuchin has been observed using containers to hold...
from Iran was found to be a host of an intestinal acanthocephalan worm, Pachysentis canicola. Golden jackals exhibit flexible social organization depending...
an arthropod, the intermediate host. The intermediate hosts of most Pachysentis species are not known. When the acanthor molts, the second stage called...
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