Systematic Parasitology最新文献_第9页

Myxobolus dumerilii sp. n. (Myxozoa: Myxobolidae) infecting the brain of Chinese longsnout catfish Tachysurus dumerili (Bleeker) in China. 杜梅里里粘菌（Myxobolus dumerilii sp.n.）（粘液菌门：粘液菌科）在中国感染杜梅里氏长尾鲶鱼（Bleeker）的大脑。

IF 1.3 4区医学

Systematic Parasitology Pub Date : 2023-12-01 Epub Date: 2023-10-18 DOI: 10.1007/s11230-023-10119-y

Xiaojing Zhao, Liwen Xu, Ren Shisi, Qiang Wei, Qi Yin, Yijing Yang, Jinyong Zhang, Jianguo Xiang, Jianbo Yu, Deliang Li, Xinhua Liu

{"title":"Myxobolus dumerilii sp. n. (Myxozoa: Myxobolidae) infecting the brain of Chinese longsnout catfish Tachysurus dumerili (Bleeker) in China.","authors":"Xiaojing Zhao, Liwen Xu, Ren Shisi, Qiang Wei, Qi Yin, Yijing Yang, Jinyong Zhang, Jianguo Xiang, Jianbo Yu, Deliang Li, Xinhua Liu","doi":"10.1007/s11230-023-10119-y","DOIUrl":"10.1007/s11230-023-10119-y","url":null,"abstract":"During an investigation of Myxobolus diversity in the Chinese longsnout catfish Tachysurus dumerili (Bleeker), a new species infecting the intracranial epidermis of the host was discovered. Upon opening the cranial cavity, several round whitish plasmodia measuring 0.55-0.80 mm in diameter were observed. Fresh spores (n= 50) were pyriform in the frontal view and fusiform in the sutural view, with a length of 15.4±0.6 (13.9-16.5) μm, width of 9.1±0.4 (8.3-9.8) μm, and thickness of 7.0±0.4 (6.3-7.9) μm. The spores had smooth shell surfaces and transparent membrane sheaths in the posterior. No folds, intercapsular appendix, and caudal appendages were observed. Two equal polar capsules were pyriform and measured 7.5±0.5 (6.7-8.7) μm in length and 3.2±0.3 (2.5-3.6) μm in width. The polar filaments were coiled with five to six turns and perpendicular to the polar capsule length. A BLAST search indicated M. dumerilii sp. n. was closely related to five Myxobolus species (with sequences similarities ranging from 90.54% to 96.52%) found in different organs of yellow catfish Tachysurus fulvidraco (Richardson), rather than the T. dumerili-infecting species M. branchiola Dong and Zhao, 2014 (with 90.5% sequence similarity). Phylogenetic analysis showed that M. dumerilii sp. n. didn't form sister clade with brain-infecting Myxobolus spp, but clustered with M. jianlinensis Gao et Zhao, 2020 and M. voremkhai Akhmerov, 1960 within the Siluriformes-clade with highly supported values, indicating that the host specificity may play a stronger signal than site infections during the evolution of Myxobolus species. Based on the morphological, ecological, and molecular differences observed between the newly discovered species and other available Myxobolus species, M. dumerilii sp. n., is proposed and described in this study.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49685043","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

Cataphryxus zapoteca sp. nov. (Isopoda, Bopyridae) and new hosts and records of bopyrid isopods from the Mexican Eastern Pacific. zapoteca Cataphyxus sp.nov.（等足目，博吡啶科）和墨西哥东太平洋博吡啶类等足类的新寄主和新记录。

IF 1 4区医学

Systematic Parasitology Pub Date : 2023-12-01 Epub Date: 2023-10-17 DOI: 10.1007/s11230-023-10118-z

Jesús Romero-Rodríguez, Fernando Álvarez

引用次数: 0

Caligid sea lice (Copepoda: Caligidae) from golden snapper Lutjanus johnii (Bloch) in Australian waters, with the recognition of Sinocaligus Shen, 1957 as a junior synonym of Caligus Müller, 1785. Caligid海虱（桡足目：Caligidae）来自澳大利亚水域的金鲷Lutjanus johnii（Bloch），1957年被Sinocaligus Shen确认为Caligus Müller的初级异名，1785年。

IF 1 4区医学

Systematic Parasitology Pub Date : 2023-10-01 Epub Date: 2023-06-21 DOI: 10.1007/s11230-023-10099-z

Geoff Boxshall, Diane P Barton

{"title":"Caligid sea lice (Copepoda: Caligidae) from golden snapper Lutjanus johnii (Bloch) in Australian waters, with the recognition of Sinocaligus Shen, 1957 as a junior synonym of Caligus Müller, 1785.","authors":"Geoff Boxshall, Diane P Barton","doi":"10.1007/s11230-023-10099-z","DOIUrl":"10.1007/s11230-023-10099-z","url":null,"abstract":"Two species of sea lice are reported from the golden snapper Lutjanus johnii (Bloch) in Australian waters. One was represented by chalimus larvae, adult males and extremely slender females in which the genital complex is scarcely wider than the fourth pedigerous somite. These females are adult as they carry paired spermatophores and are identified as Caligus dussumieri Rangnekar, 1957 on the details of their appendages. Caligus dussumieri was formerly placed in the genus Sinocaligus Shen, 1957 but the characters supporting the validity of this genus are not robust, so it is here proposed to treat it as a junior subjective synonym of Caligus and transfer its species as: Caligus formicoides Redkar, Rangnekar & Murti, 1949, Caligus dussumieri Shen, 1957, Caligus caudatus (Gnanamuthu, 1950) new combination and Caligus timorensis (Izawa, 1995) new combination. All these species can be placed in the C. bonito-species group within Caligus. Caligus rivulatus Pilla, Vankara & Chikkam, 2012 is recognized as a junior subjective synonym of C. dussumieri. A new species, C. auriolus n. sp. is also described and this is placed in the C. diaphanus species-group. A key to species of this species-group is provided which indicates that C. auriolus n. sp. is most closely related to C. stromatei Krøyer, 1863 but the latter can be distinguished by the slender abdomen of the female and by the more complex myxal process on the maxilliped in the male.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10444672/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10184916","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

Species of Dactylogyridae (Monogenoidea, Polyonchoinea) from the gills of haemulid and lutjanid fishes (Perciformes) from the Pacific coast of Mexico. 来自墨西哥太平洋海岸的嗜血鱼和lutjanid鱼(Perciformes)的鳃的长尾鱼科(单基因总科，多尾鱼科)的种。

IF 1.3 4区医学

Systematic Parasitology Pub Date : 2023-08-01 Epub Date: 2023-05-17 DOI: 10.1007/s11230-023-10095-3

Edgar F Mendoza-Franco, Princessa J Villalba-Vásquez, Juan Violante-Gonzalez

{"title":"Species of Dactylogyridae (Monogenoidea, Polyonchoinea) from the gills of haemulid and lutjanid fishes (Perciformes) from the Pacific coast of Mexico.","authors":"Edgar F Mendoza-Franco, Princessa J Villalba-Vásquez, Juan Violante-Gonzalez","doi":"10.1007/s11230-023-10095-3","DOIUrl":"10.1007/s11230-023-10095-3","url":null,"abstract":"Examination of the gill lamellae of the Panama grunt Rhencus panamensis (Steindachner) (Haemulidae), golden snapper Lutjanus inermis (Peters), and yellow snapper Lutjanus argentiventris (Peters) (Lutjanidae) (Perciformes) from the coast of the Guerrero State (eastern Tropical Pacific) of Mexico revealed 5 species of Monogenoidea: Euryhaliotrema disparum n. sp. on R. panamensis; Haliotrematoides uagroi n. sp. on L. inermis; and E. anecorhizion Kritsky & Mendoza-Franco, 2012, E. fastigatum (Zhukov, 1976) Kritsky & Boeger, 2002, and E. paracanthi (Zhukov, 1976) Kritsky & Boeger, 2002 on L. argentiventris. Specimens found on R. panamensis were assigned within Euryhaliotrema as a new species possessing the atypical morphology of the male copulatory organ (i.e., a coiled tube with clockwise rings). Haliotrematoides uagroi n. sp. differs from Haliotrematoides striatohamus (Zhukov, 1981) Mendoza-Franco, Reyes-Lizama & Gonzalez-Solis, 2009 from Haemulon spp. (Haemulidae) from the Caribbean Sea (Mexico) in having inner blades on the distal shafts of the ventral and dorsal anchors. The present paper represents the first finding of a species of Euryhaliotrema (E. disparum n. sp.) on a species of Rhencus and the second species on a haemulid host, and H. uagroi n. sp. as the first monogenoidean species described on L. inermis. Euryhaliotrema anecorhizion, E. fastigatum, and E. paracanthi on L. argentiventris in the Pacific coast of Mexico represent new geographical records.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9633976","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

Lophoura Kölliker in Gegenbaur, Kölliker & Müller, 1853 species (Copepoda: Siphonostomatoida: Sphyriidae) off South Africa with a key to all valid species. Lophoura Kölliker in Gegenbaur, Kölliker & m<e:1> ller, 1853种(桡足目:Siphonostomatoida: Sphyriidae)，南非海域，所有有效物种的钥匙。

IF 1.3 4区医学

Systematic Parasitology Pub Date : 2023-08-01 DOI: 10.1007/s11230-023-10091-7

Makwena M Sebone, Susan M Dippenaar

{"title":"Lophoura Kölliker in Gegenbaur, Kölliker & Müller, 1853 species (Copepoda: Siphonostomatoida: Sphyriidae) off South Africa with a key to all valid species.","authors":"Makwena M Sebone, Susan M Dippenaar","doi":"10.1007/s11230-023-10091-7","DOIUrl":"https://doi.org/10.1007/s11230-023-10091-7","url":null,"abstract":"Lophoura Kölliker in Gegenbaur, Kölliker & Müller, 1853 is one of the eight genera of Sphyriidae which currently consists of 19 accepted species. Lophoura species are mesoparasites of various teleosts occurring worldwide. Post metamorphic females are highly transformed with longitudinally elongated cephalothoraces and elongated necks bearing holdfast organs anteriorly. The shape and structure of the holdfast organ is mostly the main character used for the identification of species. Additionally, the structure of the posterior processes attached laterally to the perianal swelling on the posterior margin of the trunk is also used to distinguish different species. The posterior processes consist of a central porous peduncle with stalks of varying shapes and sizes. The morphology of Lophoura males bear resemblance to that of lernaeopodid males. Re-descriptions of the habitus of the post metamorphic females of L. tetraloba Ho & Kim I.H., 1989, L. cf. edwardsi Kölliker, 1853, L. caparti (Nuńes-Ruivo, 1962) and L. cornuta (Wilson C.B., 1919), including notes on the immature females of L. tetraloba and L. cf. edwardsi, are provided. Additionally, information regarding the structure and position of some of the appendages of L. tetraloba, L. cf. edwardsi and L. caparti is provided. Furthermore, the study provides the first illustrated descriptions of the male of L. tetraloba. A description is also done of an incomplete unidentied Lophoura species which differs from other accepted species. A morphological identification key to post metamorphic females of all accepted Lophoura species is provided, as well as new host and geographical records of Lophoura species.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9646184","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

Evidence for two morphologically cryptic species of Hysterolecitha Linton, 1910 (Trematoda: Lecithasteridae) infecting overlapping host ranges in Moreton Bay, Australia. 两种形态隐蔽的林顿宫螨，1910年感染澳大利亚莫尔顿湾重叠寄主范围的证据。

IF 1.3 4区医学

Systematic Parasitology Pub Date : 2023-08-01 DOI: 10.1007/s11230-023-10092-6

Berilin Duong, Thomas H Cribb, Scott C Cutmore

{"title":"Evidence for two morphologically cryptic species of Hysterolecitha Linton, 1910 (Trematoda: Lecithasteridae) infecting overlapping host ranges in Moreton Bay, Australia.","authors":"Berilin Duong, Thomas H Cribb, Scott C Cutmore","doi":"10.1007/s11230-023-10092-6","DOIUrl":"https://doi.org/10.1007/s11230-023-10092-6","url":null,"abstract":"Integration of morphological and molecular approaches to species delineation has become an essential part of digenean trematode taxonomy, particularly when delimiting cryptic species. Here, we use an integrated approach to distinguish and describe two morphologically cryptic species of Hysterolecitha Linton, 1910 (Trematoda: Lecithasteridae) from fishes of Moreton Bay, Queensland, Australia. Morphological analyses of Hysterolecitha specimens from six fish species demonstrated a complete overlap in morphometric data with no reliable differences in their gross morphological characters that suggested the presence of more than one species. Distinctions in ITS2 rDNA and cox1 mtDNA sequence data for corresponding specimens suggested the presence of two forms. A principal component analysis on an imputed dataset showed clear separation between the two forms. These two forms are partially separated on the basis of their host's identity. Therefore, we describe two morphologically cryptic species: Hysterolecitha melae n. sp. from three species of Abudefduf Forsskål and one species of Parma Günther (Pomacentridae), with the Bengal sergeant, Abudefduf bengalensis (Bloch), as the type-host; and Hysterolecitha phisoni n. sp. from species of Pomacentridae (including A. bengalensis), Pomatomidae and Siganidae, with the black rabbitfish, Siganus fuscescens (Houttuyn), as the type-host.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10264270/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9633968","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

Synopsis of myxosporean species (Cnidaria: Myxozoa) parasitizing fishes from Vietnam. 越南鱼类寄生粘孢子虫种概述(刺胞纲:粘虫纲)。

IF 1.3 4区医学

Systematic Parasitology Pub Date : 2023-08-01 DOI: 10.1007/s11230-023-10090-8

Nguyen Ngoc Chinh, Nguyen Thi Hoang Ha, Pham Ngoc Doanh, Jorge C Eiras, Christopher M Whipps, Sho Shirakashi

引用次数: 0

Additional morphological characters of the nematode Capillostrongyloides fritschi (Travassos, 1914) Moravec, 1982 (Nematoda: Capillaridae) from Bagrus spp. (Bagridae) inhabiting Damietta Branch of the River Nile, Egypt with a special reference to evaginated cirrus. Moravec, 1982(线虫纲:毛线虫科)来自埃及尼罗河Damietta支流Bagrus spp. (Bagridae)的附加形态特征，并特别提到外翻卷虫。

IF 1.3 4区医学

Systematic Parasitology Pub Date : 2023-08-01 DOI: 10.1007/s11230-023-10094-4

Hend E Allam, Mohamed I Mashaly, Mohamed M El-Naggar

{"title":"Additional morphological characters of the nematode Capillostrongyloides fritschi (Travassos, 1914) Moravec, 1982 (Nematoda: Capillaridae) from Bagrus spp. (Bagridae) inhabiting Damietta Branch of the River Nile, Egypt with a special reference to evaginated cirrus.","authors":"Hend E Allam, Mohamed I Mashaly, Mohamed M El-Naggar","doi":"10.1007/s11230-023-10094-4","DOIUrl":"https://doi.org/10.1007/s11230-023-10094-4","url":null,"abstract":"The catfish Bagrus bajad (Forsskål) and B. docmak (Forsskål) (Siluriformes: Bagridae) are well distributed in the River Nile and have an economic value with good marketing and use in aquaculture. Collected specimens of Capillostrongyloides fritschi (Travassos 1914) were redescribed using a phase-contrast microscope and scanning electron microscope. The most remarkable finding was the unique structure of the evaginated cirrus, being composed of a proximal long tube, a middle spherical bulb packed with mature spermatozoa, and a distal funnel-shaped structure. All regions of the cirrus are provided with longitudinal and transverse muscles and covered with transverse cuticular folds. The mechanism of cirrus emergence was discussed based on available musculature data. Other important findings are the short stylet of the mouth, the two lateral oral lobes, 6-10 buried cephalic papillae and the bacillary bands that lack elevations. Stichosome is formed of 35-44 stichocytes that were differentiated into black and white forms, each containing dense granules and translucent vacuoles. The intestine showed a convoluted part at its anterior region. The vulvar lips are slightly elevated, many mature eggs are cleaved, and their shells are 3-layered. The anus was found in a groove bounded by two unequal lobes.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10264282/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9640284","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

Integrated characterisation of nine species of the Schistorchiinae (Trematoda: Apocreadiidae) from Indo-Pacific fishes: two new species, a new genus, and a resurrected but 'cryptic' genus. 来自印度太平洋鱼类的九种血吸虫科(吸虫纲:带尾血吸虫科)的综合特征:两个新种，一个新属和一个复活但“隐蔽”的属。

IF 1.3 4区医学

Systematic Parasitology Pub Date : 2023-08-01 DOI: 10.1007/s11230-023-10093-5

Lori Magro, Scott C Cutmore, Maite Carrasson, Thomas H Cribb

{"title":"Integrated characterisation of nine species of the Schistorchiinae (Trematoda: Apocreadiidae) from Indo-Pacific fishes: two new species, a new genus, and a resurrected but 'cryptic' genus.","authors":"Lori Magro, Scott C Cutmore, Maite Carrasson, Thomas H Cribb","doi":"10.1007/s11230-023-10093-5","DOIUrl":"https://doi.org/10.1007/s11230-023-10093-5","url":null,"abstract":"We report nine species of the Schistorchiinae Yamaguti, 1942 (Apocreadiidae Skrjabin, 1942) from Indo-Pacific marine fishes. Molecular data (ITS2 and 28S rDNA and cox1 mtDNA) are provided for all species and the genus-level classification of the subfamily is revised. For Schistorchis Lühe, 1906, we report the type-species Sch. carneus Lühe, 1906 and Sch. skrjabini Parukhin, 1963. For Sphinteristomum Oshmarin, Mamaev & Parukhin, 1961 we report the type-species, Sph. acollum Oshmarin, Mamaev & Parukhin, 1961. We report and re-recognise Lobatotrema Manter, 1963, for the type and only species, L. aniferum Manter, 1963, previously a synonym of Sph. acollum. Lobatotrema aniferum is phylogenetically distant from, but morphologically similar to, Sph. acollum and Lobatotrema is recognised as a 'cryptic genus'. We propose Blendiella n. gen. for B. trigintatestis n. sp. and B. tridecimtestis n. sp. These species are broadly consistent with the present morphological concept of Schistorchis but are phylogenetically distant from the type-species; a larger number of testes and some other subtle morphological characters in species of Blendiella serve to distinguish the two genera. We report three species of Paraschistorchis Blend, Karar & Dronen, 2017: P. stenosoma (Hanson, 1953) Blend, Karar & Dronen, 2017 (type-species), P. seychellesiensis (Toman, 1989) Blend, Karar & Dronen, 2017, and P. zancli (Hanson, 1953) Blend, Karar & Dronen, 2017. Lobatotrema aniferum, P. stenosoma, and Sch. carneus each have two distinct cox1 populations either over geographical range or in sympatry. Available evidence suggests that most of these species, but not all, are widespread in the tropical Indo-Pacific.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10264510/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9642995","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: 1

Two new and one newly recorded gonad-infecting species of Philometra Costa, 1845 (Nematoda: Philometridae) parasitising marine fishes in Iraq. 寄生于伊拉克海鱼的绿足线虫属二新种和一新记录(线虫纲:绿足线虫科)。

IF 1.3 4区医学

Systematic Parasitology Pub Date : 2023-08-01 DOI: 10.1007/s11230-023-10096-2

František Moravec, Hassan A Fazaa, Atheer H Ali, Hussein A Saud

{"title":"Two new and one newly recorded gonad-infecting species of Philometra Costa, 1845 (Nematoda: Philometridae) parasitising marine fishes in Iraq.","authors":"František Moravec, Hassan A Fazaa, Atheer H Ali, Hussein A Saud","doi":"10.1007/s11230-023-10096-2","DOIUrl":"https://doi.org/10.1007/s11230-023-10096-2","url":null,"abstract":"Specimens of two undescribed and one known gonad-infecting species of Philometra Costa, 1845 (Nematoda: Philometridae) were collected in some marine fishes from off the southern coast of Iraq. Based on light and scanning electron microscopy, the following new species are described: Philometra tayeni n. sp. (males and nongravid females) from ovaries of the purple-spotted bigeye Priacanthus tayenus Richardson (Priacanthidae, Acanthuriformes), and Philometra nibeae n. sp. (males and gravid female) from the ovary of the blotched croaker Nibea maculata (Bloch et Schneider) (Sciaenidae, Acanthuriformes). Philometra tayeni is mainly characterised by a pair of postanal papillae and a V-shaped caudal mound in males and by their body lengths (2.42-2.99 mm), whereas P. nibeae differs from its gonad-infecting congeners parasitising scienids mainly based on the body length of males (2.29-2.49 mm) and their spicules (96-117 µm), absence of a pair of postanal papillae and shape of caudal mound consisting of two parts. Philometra piscaria Moravec & Justine, 2014 (males and nongravid females), a parasite of the orange-spotted grouper Epinephelus coioides (Hamilton) (Epinephelidae, Perciformes), is recorded from the Arabian (= Persian) Gulf for the first time; previously unknown females of this species are described.","PeriodicalId":54436,"journal":{"name":"Systematic Parasitology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9643006","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