Systematic Parasitology最新文献_第3页

Three new species of Jainus (Monogenoidea: Dactylogyridae) from the gills of Triportheus angulatus (Characiformes: Triportheidae) collected in the Peruvian Amazonia. 从秘鲁亚马逊河流域采集的Triportheus angulatus（Characiformes: Triportheidae）鳃中发现的三个Jainus新种（单源动物门：Dactylogyridae）。

IF 1 4区医学

Systematic Parasitology Pub Date : 2024-11-07 DOI: 10.1007/s11230-024-10200-0

Germán Augusto Murrieta Morey, Diego Carvalho Viana, Heber Rengifo Chota, Jhon D Chero

{"title":"Three new species of Jainus (Monogenoidea: Dactylogyridae) from the gills of Triportheus angulatus (Characiformes: Triportheidae) collected in the Peruvian Amazonia.","authors":"Germán Augusto Murrieta Morey, Diego Carvalho Viana, Heber Rengifo Chota, Jhon D Chero","doi":"10.1007/s11230-024-10200-0","DOIUrl":"https://doi.org/10.1007/s11230-024-10200-0","url":null,"abstract":"Three new species of Jainus Mizelle, Kritzky & Crane, 1968, are described parasitizing the gill filaments of Triportheus angulatus (Spix & Agassiz) (Characiformes: Triportheidae), an omnivorous fish endemic to the Amazon River basin. Jainus iquitensis n. sp. is characterized by the morphology of the vagina, which is bell-shaped, with a canal as a sclerotized tube and the morphology of hook pair VII, which in the new species presents an inflated base, a characteristic not observed in other congeners. Jainus loretoensis n. sp. is unique among Jainus species due to the morphology of its Y-shaped ventral anchors, with an arrow-shaped superficial root and a finger-shaped deep root. Jainus sardinae n. sp. is characterized by presenting a slender, small J-shaped tube with a sigmoid accessory piece and a ventral anchor that is Y-shaped, with inconspicuous finger-shaped deep root and superficial root with rounded ending with a chin-shaped projection. These findings add three new species to the previously reported two Jainus species from Peru.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":"102 1","pages":"1"},"PeriodicalIF":1.0,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142607467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Systematics of Pseudocavisoma (Acanthocephala: Echinorhynchida): assessment of familial affiliation, establishment of a new species, and complementary redescription of the type species based on syntypes. Pseudocavisoma （Acanthocephala: Echinorhynchida）的系统学：科属评估、一个新种的确立以及基于同种异型的模式种的补充性重新描述。

IF 1 4区医学

Systematic Parasitology Pub Date : 2024-11-04 DOI: 10.1007/s11230-024-10201-z

Yuki Kita, Masato Nitta, Hiroshi Kajihara

{"title":"Systematics of Pseudocavisoma (Acanthocephala: Echinorhynchida): assessment of familial affiliation, establishment of a new species, and complementary redescription of the type species based on syntypes.","authors":"Yuki Kita, Masato Nitta, Hiroshi Kajihara","doi":"10.1007/s11230-024-10201-z","DOIUrl":"10.1007/s11230-024-10201-z","url":null,"abstract":"The familial affiliation of the so-far-monotypic palaeacanthocephalan genus Pseudocavisoma Golvan & Houin, 1964 has solely been based on morphological characteristics, lacking nucleotide sequence data. In this paper, we assess the phylogenetic position of the genus with a dataset consisting of partial sequences of the mitochondrial cytochrome c oxidase subunit I, and the nuclear 18S and 28S rRNA genes for 37 species of palaeacanthocephalans available in public databases along with the ones determined from the new species Pseudocavisoma setoense sp. nov., herein established with specimens collected from the intestine of the pearl-spot chromis Chromis notata (Temminck & Schlegel, 1843) obtained in the Seto Inland Sea, Japan. Our results suggested that Pseudocavisoma should be placed in Micracanthorhynchinidae Yamaguti, 1963, rather than in Cavisomatidae Meyer, 1932 as had been considered by previous authors. Because Micracanthorhynchinidae has been regarded synonymous with Rhadinorhynchidae Lühe, 1912 since 1985, we re-validate the former taxon while providing an amended diagnosis for it. Pseudocavisoma setoense sp. nov. can be distinguished from the sole congener Pseudocavisoma chromitidis (Cable & Quick, 1954) by the distributional pattern and the size of spines on the trunk. We provide a partial morphological redescription of the latter species based on syntypes of Cavisoma chromitidis Cable & Quick, 1954. We also provide an amended diagnosis for Pseudocavisoma to accommodate P. setoense sp. nov.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":"101 6","pages":"73"},"PeriodicalIF":1.0,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wandering the taxonomic mine-field: the Podocotyle species complex (Digenea: Opecoelidae). 徘徊在分类学雷区：Podocotyle物种复合体（Digenea: Opecoelidae）。

IF 1 4区医学

Systematic Parasitology Pub Date : 2024-10-28 DOI: 10.1007/s11230-024-10194-9

Darya Krupenko, Georgii Kremnev, Anna Gonchar, Arseniy Gubler, Olga Skobkina

引用次数: 0

New insights into the systematics of Cyclocoelidae (Trematoda: Echinostomatoidea) based on novel morphological and molecular data, with description of a new species and a new genus. 基于新的形态学和分子数据对旋毛虫科（棘皮动物门：Echinostomatoidea）系统学的新见解，并描述了一个新种和一个新属。

IF 1 4区医学

Systematic Parasitology Pub Date : 2024-10-26 DOI: 10.1007/s11230-024-10192-x

Konstantin S Vainutis, Anastasia N Voronova, Mark E Andreev, Mikhail Yu Shchelkanov

{"title":"New insights into the systematics of Cyclocoelidae (Trematoda: Echinostomatoidea) based on novel morphological and molecular data, with description of a new species and a new genus.","authors":"Konstantin S Vainutis, Anastasia N Voronova, Mark E Andreev, Mikhail Yu Shchelkanov","doi":"10.1007/s11230-024-10192-x","DOIUrl":"10.1007/s11230-024-10192-x","url":null,"abstract":"In light of the morphological and molecular data for cyclocoelids observed from the air sacs of Mareca strepera (Linnaeus) (Anatidae, Anseriformes) caught in the southern region of the Russian Far East, we suggest new insights into the systematics of the family Cyclocoelidae. A comparative morphological and phylogenetic analyzes revealed that new cyclocoelids represented the new genus and species Paracyclocoelum lobatum. Based on the 28S rRNA gene fragment we showed the significant genetic divergence of P. lobatum from the type species of the type genus for the family, Cyclocoelum mutabile (Zeder, 1800) Brandes, 1892 and along with the confusing morphological similarity by the prepharyngeal position of the genital pore it most likely indicate homologous development of the reproductive system of Paracyclocoelum and Cyclocoelum. Here, we provide a new dichotomous key for five cyclocoelid genera from the subfamily Cyclocoelinae including Paracyclocoelum n. g. The new genus Paracyclocoelum had sister relationship to the cyclocoelin genus Circumvitellatrema. Based on the polyphyletic interrelationships of Cyclocoelum and Circumvitellatrema the Cyclocoelinae were assigned with the status sensu lato.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":"101 6","pages":"71"},"PeriodicalIF":1.0,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142513037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The epicaridium larvae of Paragigantione species (Isopoda: Epicaridea: Bopyridae) have external yolk sacs: transfer of the genus to Pleurocryptellinae, description of two new species in the genus and a new species of hyperparasite (Isopoda: Epicaridea: Cabiropidae). Paragigantione 种（等足目：表皮虫科：Bopyridae）的表皮虫幼虫具有外部卵黄囊：将该属归入 Pleurocryptellinae，描述了该属的两个新种和一个超寄生虫新种（等足目：表皮虫科：Cabiropidae）。

IF 1 4区医学

Systematic Parasitology Pub Date : 2024-10-25 DOI: 10.1007/s11230-024-10190-z

Christopher B Boyko, Jason D Williams, Gianna Sancetta

{"title":"The epicaridium larvae of Paragigantione species (Isopoda: Epicaridea: Bopyridae) have external yolk sacs: transfer of the genus to Pleurocryptellinae, description of two new species in the genus and a new species of hyperparasite (Isopoda: Epicaridea: Cabiropidae).","authors":"Christopher B Boyko, Jason D Williams, Gianna Sancetta","doi":"10.1007/s11230-024-10190-z","DOIUrl":"10.1007/s11230-024-10190-z","url":null,"abstract":"The epicaridean isopods previously known to have epicaridium larvae with posterior yolk sacs were species of Pleurocryptella Bonnier, 1900 and a new subfamily, Pleurocryptellinae, was recently erected for this genus. Epicaridium larvae bearing posterior yolk sacs are newly reported from two species of the genus Paragigantione Barnard, 1920 which is transferred from Pseudioninae to Pleurocryptelline on the basis of this and other shared characters of adult males and females with species of Pleurocryptella. Two new species of Paragigantione are described, one from the northeast Atlantic based on type material that was misidentified as belonging to the type species of the genus, P. papillosa Barnard, 1920 and a second from off New Zealand. One specimen of the New Zealand species had a cryptoniscus larva of a new species of hyperparasite of the genus Bourdonia Rybakov, 1990 in the marsupium while another had a species of Duplorbis (Rhizocephala); the former is described based on this material as well as a specimen from a specimen of Pseudione cf. fibriata Richardson, 1910 from New Zealand. Keys to species of Paragigantione for both males and females are provided.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":"101 6","pages":"70"},"PeriodicalIF":1.0,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511765/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142513038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morpho-molecular characterization and phylogenetic relationships of Encotyllabe percussa n. sp. (Monogenea: Capsalidae) from the spangled emperor Lethrinus nebulosus (Teleostei, Lethrinidae). 来自斑纹帝王鱼Lethrinus nebulosus（Teleostei，Lethrinidae）的Encotyllabe percussa n. sp.（Monogenea: Capsalidae）的形态分子特征和系统发育关系。

IF 1 4区医学

Systematic Parasitology Pub Date : 2024-10-23 DOI: 10.1007/s11230-024-10193-w

José Raúl Morales-Ávila, Sarah Al Jufaili, Kazuo Ogawa

{"title":"Morpho-molecular characterization and phylogenetic relationships of Encotyllabe percussa n. sp. (Monogenea: Capsalidae) from the spangled emperor Lethrinus nebulosus (Teleostei, Lethrinidae).","authors":"José Raúl Morales-Ávila, Sarah Al Jufaili, Kazuo Ogawa","doi":"10.1007/s11230-024-10193-w","DOIUrl":"10.1007/s11230-024-10193-w","url":null,"abstract":"Encotyllabe percussa n. sp. is proposed based on morphology and DNA sequences analysis of ribosomal (18S, 28S) and mitochondrial (COI) gene fragments. Encotyllabe percussa n. sp. was found infecting the spangled emperor Lethrinus nebulosus (n = 75) with higher prevalence from Dibba, Musandam (Gulf of Oman) than in Dhofar Salalah (Indian Ocean), Oman (p = 0.03). The general morphology of E. percussa n. sp. resembles E. caballeroi, E. chironemi and E. spari, which exhibit pre-equatorial testes. However, E. percussa n. sp. shows unique morphological characteristics distinguishing from congeneric species: the large hamuli bear notch allocated externally between the first half proximal of the root, and the small hamuli exhibit semicircular shape with undivided roots. Phylogenetic relationships within the Encotyllabe genus remain unresolved. However, the tree topology with the 28S showed overall consistency with the principal component analysis arrangement (PCA) derived from the morphological analysis. Which showed that the large and small hamuli, marginal hooks, ovary, testes (length and width) and peduncle are currently the most important morphological traits within the genus. Cytochrome c oxidase subunit I (COI) gene fragment showed high interspecific genetic divergence adding unambiguous resolution to discriminate/designate species identity. Interrelations within the genus support the identity of Encotyllabe percussa as a new species. This is the first species characterized with three gene fragments, the second congeneric species described in L. nebulosus and the first recorded in Oman.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":"101 6","pages":"69"},"PeriodicalIF":1.0,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142513036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Myxobolus liuyangensis sp. n. (Myxosporea: Myxobolidae) from the gills of exotic mrigal carp Cirrhinus mrigala (Actinopterygii: Cyprinidae) in China. 中国外来鲤鱼鳃中的浏阳蕈蚊（Myxobolus liuyangensis sp.

IF 1 4区医学

Systematic Parasitology Pub Date : 2024-10-22 DOI: 10.1007/s11230-024-10191-y

Shen Yuan, Xiaojing Zhao, Xiancheng Song, Cheng Chen, Qiang Wei, Deliang Li, Jinping Wang, Xinhua Liu

{"title":"Myxobolus liuyangensis sp. n. (Myxosporea: Myxobolidae) from the gills of exotic mrigal carp Cirrhinus mrigala (Actinopterygii: Cyprinidae) in China.","authors":"Shen Yuan, Xiaojing Zhao, Xiancheng Song, Cheng Chen, Qiang Wei, Deliang Li, Jinping Wang, Xinhua Liu","doi":"10.1007/s11230-024-10191-y","DOIUrl":"10.1007/s11230-024-10191-y","url":null,"abstract":"A new species, Myxobolus liuyangensis sp. n., was found in the gills of the exotic mrigal carp Cirrhinus mrigala during a survey of the fauna of exotic fish myxospore in China. Plasmodia were elongated pyriform, measuring 0.42 mm long and 0.15 mm wide. The mature spores were elongated pyriform in the frontal view, tapered forward, rounded posterior end, and fusiform in the sutural view, measuring 17.3 ±0.5 (16.5-18.3) μm long, 6.2 ±0.3 (5.2-6.8) μm wide, and 4.8 ±0.2 (4.4-5.1) μm thick. The two equal polar capsules of elongated pyriform in shape measured 11.3 ±0.5 (10.6-12.3) μm long and 2.5 ±0.3 (2.0-3.1) μm wide, occupying more than half the capacity of the spores. The polar filaments were coiled with fifteen to sixteen turns. No mucous envelope and caudal appendages were found. The consensus SSU rDNA gene sequence obtained here for M. liuyangensis sp. n. did not match any sequences available in GenBank, but was most closely related to M. catlae that infects the gills of C. cirrhosis (MT003664, 97.99% similarity). Phylogenetic analysis indicated that the C. mrigala-infecting Myxobolus species were not clustered together, but dispersed in different clades. The present species clustered with M. catlae and M. orissae within the clade I of elongated pyriform spore shapes, revealing spore shapes may play an important role during the evolution of Myxobolus species. This is the second myxosporean infection report in the exotic mrigal carp C. mrigala.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":"101 6","pages":"68"},"PeriodicalIF":1.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142481026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gyrodactylus serrai n. sp. (Gyrodactylidae), from the Near-Threatened Clanwilliam Sawfin, Cheilobarbus serra (Peters) (Cyprinidae, Smilogastrinae), in the Cape Fold Ecoregion, South Africa. Gyrodactylus serrai n. sp. (Gyrodactylidae), from the Near-Threatened Clanwilliam Sawfin, Cheilobarbus serra (Peters) (Cyprinidae, Smilogastrinae), in the Cape Fold Ecoregion, South Africa.

IF 1 4区医学

Systematic Parasitology Pub Date : 2024-10-15 DOI: 10.1007/s11230-024-10186-9

Iva Přikrylová, Marliese Truter, Wilmien J Luus-Powell, Albert Chakona, Nico J Smit

{"title":"Gyrodactylus serrai n. sp. (Gyrodactylidae), from the Near-Threatened Clanwilliam Sawfin, Cheilobarbus serra (Peters) (Cyprinidae, Smilogastrinae), in the Cape Fold Ecoregion, South Africa.","authors":"Iva Přikrylová, Marliese Truter, Wilmien J Luus-Powell, Albert Chakona, Nico J Smit","doi":"10.1007/s11230-024-10186-9","DOIUrl":"10.1007/s11230-024-10186-9","url":null,"abstract":"A new species of Gyrodactylus is described from the gills of the near-threatened Clanwilliam sawfin, Cheilobarbus serra (Smiliogastrinae) collected from the Matjies River, Cape Fold Ecoregion, Western Cape Province, South Africa. Morphometry and morphology of the haptoral hard parts (hamuli, bars and marginal hooks) of Gyrodactylus serrai n. sp. differ from the other known species of the genus in the smaller size of hamuli and the shape and size of marginal hooks. Furthermore, ITS rDNA for the new species is unique among available Gyrodactylus spp. data in GenBank. Based on the uncorrected p-distances, G. serrai n. sp. is genetically most closely related to Gyrodactylus moroccensis Rahmouni, 2023 and Gyrodactylus pseudomoroccensis Rahmouni, 2023 from two species of Luciobarbus (Barbinae) from northern Africa, with interspecific divergence of 8.7% and 8.8%, respectively. The presence of a median ridge in the terminal part of the ventral bar membrane at G. serrai n. sp. most probably represents a morphological link to the North African Gyrodactylus spp. that suggests a morphogenetic association across the African continent as a result of ancient waterways that facilitated the dispersion of cyprinids and their parasite fauna or an independent evolution event retaining similarities from a common ancestor. The description of Gyrodactylus serrai n. sp. represents only the second species of Gyrodactylus described from an endemic South African cyprinid host, underscoring the need for focused research on this group of fishes to provide a sound understanding of the parasitic communities of these highly threatened and poorly studied hosts.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":"101 6","pages":"67"},"PeriodicalIF":1.0,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11480131/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142481025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A high-altitude population of Hyperboreomyzon polaris (Hirudinea: Glossiphoniidae) in Altai Mountains, South Siberia, Russia. 俄罗斯南西伯利亚阿尔泰山的高海拔极地鲎（Hyperboreomyzon polaris）种群（Hirudinea: Glossiphoniidae）。

IF 1 4区医学

Systematic Parasitology Pub Date : 2024-09-26 DOI: 10.1007/s11230-024-10169-w

Tatyana A Eliseeva, Ivan N Bolotov, Mikhail Y Gofarov, Galina V Bovykina, Iya G Tsiplenkina, Alexander V Kondakov

{"title":"A high-altitude population of Hyperboreomyzon polaris (Hirudinea: Glossiphoniidae) in Altai Mountains, South Siberia, Russia.","authors":"Tatyana A Eliseeva, Ivan N Bolotov, Mikhail Y Gofarov, Galina V Bovykina, Iya G Tsiplenkina, Alexander V Kondakov","doi":"10.1007/s11230-024-10169-w","DOIUrl":"10.1007/s11230-024-10169-w","url":null,"abstract":"Hyperboreomyzon polaris Bolotov, Eliseeva, Klass & Kondakov, 2022 (Hirudinea: Glossiphoniidae) is an enigmatic freshwater leech that was recently described based on three specimens from two remote regions of the Eurasian Arctic, that is, the Kolguev Island and Putorana Plateau, Russia. Later on, misidentified historical samples of this species were discovered in the Hirudinea collection of Zoological Institute of the Russian Academy of Sciences (St. Petersburg, Russia). These samples were collected by Pavel G. Ignatov, a prominent Russian geographer and traveler, from a remote high-altitude area of the Altai Mountains (South Siberia) in 1901. To collect new samples from this population, we organized a field expedition to the same area (Lake Dzhulukul) in 2023. Molecular genetic data (COI and 18S rRNA) obtained from newly collected specimens revealed that they belong to H. polaris. Hence, this leech could be considered an Arctic-alpine species, the disjunctive range of which covers Arctic areas of Eurasia and Central Asian (South Siberian) mountains. We describe and illustrate living individuals of H. polaris for the first time, update its morphological diagnosis, present a life cycle reconstruction based on the frequency of four size classes in available samples. It is shown that this species prefers small lentic water bodies such as small lakes and lakelets. The crop content of a well-fed specimen from Altai contains DNA of the northern pintail Anas acuta Linnaeus (Aves: Anatidae), indicating that H. polaris feeds on blood of waterfowl. Our results indicate that Hyperboreomyzon may be considered a species adapted to cold high-latitude areas and mountain refugia.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":"101 6","pages":"66"},"PeriodicalIF":1.0,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142332403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new species of Neoergasilus Yin 1956 (Copepoda: Cyclopoida: Ergasilidae) parasitic on the catfish Clarias gariepinus (Burchell, 1822) (Siluriformes: Clariidae) from South Africa. 寄生于南非鲶鱼（Clarias gariepinus (Burchell, 1822) (Siluriformes: Clariidae)）的一种新物种（Neoergasilus Yin 1956）。

IF 1 4区医学

Systematic Parasitology Pub Date : 2024-09-24 DOI: 10.1007/s11230-024-10189-6

Precious P Fikiye, Liesl L Van As, Marliese Truter, Nico J Smit, Kerry A Hadfield

{"title":"A new species of Neoergasilus Yin 1956 (Copepoda: Cyclopoida: Ergasilidae) parasitic on the catfish Clarias gariepinus (Burchell, 1822) (Siluriformes: Clariidae) from South Africa.","authors":"Precious P Fikiye, Liesl L Van As, Marliese Truter, Nico J Smit, Kerry A Hadfield","doi":"10.1007/s11230-024-10189-6","DOIUrl":"10.1007/s11230-024-10189-6","url":null,"abstract":"Twenty-one specimens of an ergasilid were collected from the gills of the sharptooth catfish, Clarias gariepinus (Burchell), from the Eastern Cape, South Africa. The first leg and antennae morphology conformed to the genus Neoergasilus Yin, 1956. While the invasive Neoergasilus japonicus (Harada, 1930) is the only Neoergasilus species that has been reported from Africa, the combination of several characteristics, separates the Eastern Cape specimens from N. japonicus and the other eight Neoergasilus congeners. These include an inflated cephalothorax; the presence of an oval dorsal ornamentation anterior to the cephalosome; a spine on the posterodistal margin of the first antennal segment; a cone-like process at the proximal margin of the second antennal segment; a knob-like process on the inner distal margin of the first exopodal segment of leg 1 and two forked spines on the third exopodal segment; leg 4 bearing a 2-segmented exopod and 3-segmented endopod; a single-segmented fifth leg with a seta extending from the base of the pedigerous somite and three unequal setae on its free segment; and a median caudal rami seta with an array of spines. Supporting genetic data were generated using two partial ribosomal RNA genes, 18S and 28S, and one partial mitochondrial DNA gene, COI. The Eastern Cape species is here proposed as new to science and described as Neoergasilus africanus n. sp. (Ergasilidae: Cyclopoida). This is the first Neoergasilus species described from the sharptooth catfish and from the southern hemisphere. Additionally, a key to all the species of this genus is provided.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":"101 5","pages":"64"},"PeriodicalIF":1.0,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11422265/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142309143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0