Julio Cesar Cenci de Aguiar, Patrick D Mathews, Marcus Vinicius Domingues, Reinaldo J da Silva
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Supported by morphological phylogenetic analysis, we propose the new genera Rhabdolachosus n. gen., Martorellius n. gen., Magnanchistrius n. gen., and Sicohencotyle n. gen., along with the resurrection of Omothecium Kritsky, Thatcher & Boeger, 1987, and Paramphocleithrium Suriano & Incorvaia, 1995. Additionally, two new species are described: Sicohencotyle antoniomaiai n. gen. n. sp. and Ameloblastella sakulocirra n. sp. Also, Demidospermus centromochi Mendoza-Franco & Scholz, 2009 is classified as sedis mutabilis, while D. annulus Marcotegui & Martorelli, 2011, D. brevicirrus Mendoza-Palmero et al., 2012, D. cornicinus Kritsky & Gutierrez, 1998, D. idolus Kritsky & Gutierrez, 1998, D. armostus Kritsky & Gutierrez, 1998, D. mortenthaleri Mendoza-Palmero et al., 2012, D. osteomystax Tavernari et al., 2010, D. tocantinensis Cohen et al., 2020, D. doncellae Morey et al., 2024, D. bifurcatus Justo, Martins & Cohen, 2024, D. juruaensis Justo, Martins & Cohen, 2024, and D. takemotoi Justo, Martins & Cohen, 2024 are considered incertae sedis. Lastly, Urocleidoides amazonensis Mizelle & Kritsky, 1969 remains classified as incertae sedis.</p>","PeriodicalId":19796,"journal":{"name":"Parasite","volume":"32 ","pages":"49"},"PeriodicalIF":2.4000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12324567/pdf/","citationCount":"0","resultStr":"{\"title\":\"Morphological phylogeny on the unnatural grouping of Demidospermus-like species (Monopisthocotyla, Dactylogyridae) with the proposal of new genera, genera resurrections, and descriptions of new species.\",\"authors\":\"Julio Cesar Cenci de Aguiar, Patrick D Mathews, Marcus Vinicius Domingues, Reinaldo J da Silva\",\"doi\":\"10.1051/parasite/2025034\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Dactylogyrids are flatworms of ecological and economic significance, parasitizing fish worldwide. In recent years, there has been a surge in the description of Neotropical dactylogyrids, particularly those infecting siluriform fishes. While these studies have contributed to the organization of some genera and refined species boundaries through integrative taxonomy, certain groups within the family, such as Demidospermus, remain taxonomically unstable. This study focuses on Demidospermus, aiming to reclassify species of uncertain status into appropriate genera and establish a morphological framework to support future evolutionary analyses and taxonomic revisions within the Demidospermus-like species group. Supported by morphological phylogenetic analysis, we propose the new genera Rhabdolachosus n. gen., Martorellius n. gen., Magnanchistrius n. gen., and Sicohencotyle n. gen., along with the resurrection of Omothecium Kritsky, Thatcher & Boeger, 1987, and Paramphocleithrium Suriano & Incorvaia, 1995. Additionally, two new species are described: Sicohencotyle antoniomaiai n. gen. n. sp. and Ameloblastella sakulocirra n. sp. Also, Demidospermus centromochi Mendoza-Franco & Scholz, 2009 is classified as sedis mutabilis, while D. annulus Marcotegui & Martorelli, 2011, D. brevicirrus Mendoza-Palmero et al., 2012, D. cornicinus Kritsky & Gutierrez, 1998, D. idolus Kritsky & Gutierrez, 1998, D. armostus Kritsky & Gutierrez, 1998, D. mortenthaleri Mendoza-Palmero et al., 2012, D. osteomystax Tavernari et al., 2010, D. tocantinensis Cohen et al., 2020, D. doncellae Morey et al., 2024, D. bifurcatus Justo, Martins & Cohen, 2024, D. juruaensis Justo, Martins & Cohen, 2024, and D. takemotoi Justo, Martins & Cohen, 2024 are considered incertae sedis. 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引用次数: 0
摘要
趾形虫是一种具有生态和经济意义的扁虫，寄生在世界各地的鱼类中。近年来，对新热带dactylogyids的描述激增，特别是那些感染志卢形鱼类的dactylogyids。虽然这些研究通过综合分类学对某些属的组织和物种边界的细化做出了贡献，但该科内的某些类群，如半菊属，在分类学上仍然不稳定。本研究以半毛精属为研究对象，旨在将身份不确定的物种重新分类为合适的属，并建立形态学框架，为未来的进化分析和分类修订提供支持。在形态系统发育分析的支持下，我们提出了Rhabdolachosus n. gen.、Martorellius n. gen.、Magnanchistrius n. gen.和Sicohencotyle n. gen.的新属，以及Omothecium Kritsky （Thatcher & Boeger, 1987）和Paramphocleithrium Suriano & Incorvaia（1995）的复活。此外，还发现了两个新种：此外，centromochi Demidospermus Mendoza-Franco & Scholz， 2009被归类为sedis mutabilis，而D. annulus Marcotegui & Martorelli, 2011， D. brevicirus Mendoza-Palmero等，2012，D. cornicinus Kritsky & Gutierrez, 1998， D. idolus Kritsky & Gutierrez, 1998， D. armostus Kritsky & Gutierrez, 1998， D. mortenthaleri Mendoza-Palmero等，2012，D. osteomystax Tavernari等，2010，D. tocantinensis Cohen等人，2020，D. doncellae Morey等人，2024，D. bifurcatus Justo, Martins & Cohen, 2024， D. juruaensis Justo, Martins & Cohen， 2024和D. takemotoi Justo, Martins & Cohen， 2024被认为是不确定的。最后，amazon Urocleidoides Mizelle & Kritsky， 1969仍然被归类为incertae sedis。
Morphological phylogeny on the unnatural grouping of Demidospermus-like species (Monopisthocotyla, Dactylogyridae) with the proposal of new genera, genera resurrections, and descriptions of new species.
Dactylogyrids are flatworms of ecological and economic significance, parasitizing fish worldwide. In recent years, there has been a surge in the description of Neotropical dactylogyrids, particularly those infecting siluriform fishes. While these studies have contributed to the organization of some genera and refined species boundaries through integrative taxonomy, certain groups within the family, such as Demidospermus, remain taxonomically unstable. This study focuses on Demidospermus, aiming to reclassify species of uncertain status into appropriate genera and establish a morphological framework to support future evolutionary analyses and taxonomic revisions within the Demidospermus-like species group. Supported by morphological phylogenetic analysis, we propose the new genera Rhabdolachosus n. gen., Martorellius n. gen., Magnanchistrius n. gen., and Sicohencotyle n. gen., along with the resurrection of Omothecium Kritsky, Thatcher & Boeger, 1987, and Paramphocleithrium Suriano & Incorvaia, 1995. Additionally, two new species are described: Sicohencotyle antoniomaiai n. gen. n. sp. and Ameloblastella sakulocirra n. sp. Also, Demidospermus centromochi Mendoza-Franco & Scholz, 2009 is classified as sedis mutabilis, while D. annulus Marcotegui & Martorelli, 2011, D. brevicirrus Mendoza-Palmero et al., 2012, D. cornicinus Kritsky & Gutierrez, 1998, D. idolus Kritsky & Gutierrez, 1998, D. armostus Kritsky & Gutierrez, 1998, D. mortenthaleri Mendoza-Palmero et al., 2012, D. osteomystax Tavernari et al., 2010, D. tocantinensis Cohen et al., 2020, D. doncellae Morey et al., 2024, D. bifurcatus Justo, Martins & Cohen, 2024, D. juruaensis Justo, Martins & Cohen, 2024, and D. takemotoi Justo, Martins & Cohen, 2024 are considered incertae sedis. Lastly, Urocleidoides amazonensis Mizelle & Kritsky, 1969 remains classified as incertae sedis.
期刊介绍：
Parasite is an international open-access, peer-reviewed, online journal publishing high quality papers on all aspects of human and animal parasitology. Reviews, articles and short notes may be submitted. Fields include, but are not limited to: general, medical and veterinary parasitology; morphology, including ultrastructure; parasite systematics, including entomology, acarology, helminthology and protistology, and molecular analyses; molecular biology and biochemistry; immunology of parasitic diseases; host-parasite relationships; ecology and life history of parasites; epidemiology; therapeutics; new diagnostic tools.
All papers in Parasite are published in English. Manuscripts should have a broad interest and must not have been published or submitted elsewhere. No limit is imposed on the length of manuscripts, but they should be concisely written. Papers of limited interest such as case reports, epidemiological studies in punctual areas, isolated new geographical records, and systematic descriptions of single species will generally not be accepted, but might be considered if the authors succeed in demonstrating their interest.
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