Germán Augusto Murrieta Morey, Hilmer A. Dávila, Mariana Vásquez Arimuya, Alana Lislea de Sousa, Celso L. Cruces, Jhon D. Chero
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Drawings were made using a drawing tube and a microprojector.</p><h3>Results</h3><p><i>Sciadicleithrum amazoniensis</i> n. sp. is characterized by the presence of a male copulatory organ (MCO) with a coil of approximately 2 counterclockwise rings, an accessory piece articulated to base of the MCO with an expanded proximal end and a bifurcated distal end, and a sinistral vaginal aperture. <i>Sciadicleithrum feliciajaramae</i> n. sp. can be differentiated from all its congeners by its J-shaped MCO with about half a counterclockwise loop and a rod-shaped accessory piece articulated to the base of the MCO, with the distal end bent. <i>Sciadicleithrum souzatecci</i> n. sp. differs from all other members of <i>Sciadicleithrum</i> by having an elongated MCO with about a clockwise loop and a funnel-shaped base. Additionally, <i>Sciadicleithrum souzatecci</i> n. sp. is characterized by its weakly sclerotized, C-shaped accessory piece with a robust middle process.</p><h3>Conclusions</h3><p>Present findings are added to the other 26 species previously known in <i>Sciadicleithrum</i>.This is the first data on the parasites of <i>B</i>. <i>peregrinabunda</i>.</p></div>","PeriodicalId":6932,"journal":{"name":"Acta Parasitologica","volume":"69 3","pages":"1674 - 1681"},"PeriodicalIF":1.2000,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Three New Species of Sciadicleithrum (Monogenoidea, Dactylogyridae) Parasitizing Cichlid Fishes (Cichliformes: Cichlidae) in the Northeastern Peru\",\"authors\":\"Germán Augusto Murrieta Morey, Hilmer A. Dávila, Mariana Vásquez Arimuya, Alana Lislea de Sousa, Celso L. Cruces, Jhon D. Chero\",\"doi\":\"10.1007/s11686-024-00895-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Introduction</h3><p>The present study describes three new dactylogyrid species infecting the gill filaments of cichlid fishes (Cichliformes: Cichlidae) from the Amazon basin, Peru: <i>Sciadicleithrum amazoniensis</i> n. sp. on <i>Biotodoma cupido</i> (Heckel, 1840), and <i>Sciadicleithrum feliciajaramae</i> n. sp. and <i>Sciadicleithrum souzatecci</i> n. sp. on <i>Bujurquina peregrinabunda</i> Kullander, 1986.</p><h3>Materials and methods</h3><p>Some monogeneans were stained with Gomori’s trichrome and mounted in Canada Balsam to determine internal soft structures. Others were cleared in Hoyer’s medium for the study of sclerotized structures. Drawings were made using a drawing tube and a microprojector.</p><h3>Results</h3><p><i>Sciadicleithrum amazoniensis</i> n. sp. is characterized by the presence of a male copulatory organ (MCO) with a coil of approximately 2 counterclockwise rings, an accessory piece articulated to base of the MCO with an expanded proximal end and a bifurcated distal end, and a sinistral vaginal aperture. <i>Sciadicleithrum feliciajaramae</i> n. sp. can be differentiated from all its congeners by its J-shaped MCO with about half a counterclockwise loop and a rod-shaped accessory piece articulated to the base of the MCO, with the distal end bent. <i>Sciadicleithrum souzatecci</i> n. sp. differs from all other members of <i>Sciadicleithrum</i> by having an elongated MCO with about a clockwise loop and a funnel-shaped base. 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引用次数: 0
摘要
简介：本研究描述了感染秘鲁亚马逊河流域慈鲷（慈鲷形目：Cichlidae）鳃丝的三种新的dactylogyrid物种：Sciadicleithrum amazoniensis n. sp. on Biotodoma cupido (Heckel, 1840), and Sciadicleithrum feliciajaramae n. sp. and Sciadicleithrum souzatecci n. sp. on Bujurquina peregrinabunda Kullander, 1986：用 Gomori 三色染色剂对一些单体进行染色，并用加拿大香脂装裱，以确定内部软结构。另一些则在霍耶氏培养基中清洗，以研究硬质结构。使用绘图管和微型投影仪进行绘图：Sciadicleithrum amazoniensis n.sp.的特征是有一个雄性交配器官（MCO），该器官由大约两个逆时针方向的环形线圈组成，一个附件与 MCO 的基部衔接，具有膨大的近端和分叉的远端，以及一个窦状阴道孔。Sciadicleithrum feliciajaramae n. sp.可与其所有同类区分开来，因为它的 MCO 呈 J 形，约有半个逆时针环，一个棒状的附属片与 MCO 基部相连，远端弯曲。Sciadicleithrum souzatecci n. sp.与 Sciadicleithrum 的所有其他成员都不同，其拉长的 MCO 大约有一个顺时针环，基部呈漏斗状。此外，Sciadicleithrum souzatecci n. sp.的特征还包括其硬质化程度较弱的 C 形附属片，中间有一个粗壮的突起：目前的发现是对之前已知的 26 种 Sciadicleithrum 的补充。
Three New Species of Sciadicleithrum (Monogenoidea, Dactylogyridae) Parasitizing Cichlid Fishes (Cichliformes: Cichlidae) in the Northeastern Peru
Introduction
The present study describes three new dactylogyrid species infecting the gill filaments of cichlid fishes (Cichliformes: Cichlidae) from the Amazon basin, Peru: Sciadicleithrum amazoniensis n. sp. on Biotodoma cupido (Heckel, 1840), and Sciadicleithrum feliciajaramae n. sp. and Sciadicleithrum souzatecci n. sp. on Bujurquina peregrinabunda Kullander, 1986.
Materials and methods
Some monogeneans were stained with Gomori’s trichrome and mounted in Canada Balsam to determine internal soft structures. Others were cleared in Hoyer’s medium for the study of sclerotized structures. Drawings were made using a drawing tube and a microprojector.
Results
Sciadicleithrum amazoniensis n. sp. is characterized by the presence of a male copulatory organ (MCO) with a coil of approximately 2 counterclockwise rings, an accessory piece articulated to base of the MCO with an expanded proximal end and a bifurcated distal end, and a sinistral vaginal aperture. Sciadicleithrum feliciajaramae n. sp. can be differentiated from all its congeners by its J-shaped MCO with about half a counterclockwise loop and a rod-shaped accessory piece articulated to the base of the MCO, with the distal end bent. Sciadicleithrum souzatecci n. sp. differs from all other members of Sciadicleithrum by having an elongated MCO with about a clockwise loop and a funnel-shaped base. Additionally, Sciadicleithrum souzatecci n. sp. is characterized by its weakly sclerotized, C-shaped accessory piece with a robust middle process.
Conclusions
Present findings are added to the other 26 species previously known in Sciadicleithrum.This is the first data on the parasites of B. peregrinabunda.
期刊介绍：
Acta Parasitologica is an international journal covering the latest advances in the subject.
Acta Parasitologica publishes original papers on all aspects of parasitology and host-parasite relationships, including the latest discoveries in biochemical and molecular biology of parasites, their physiology, morphology, taxonomy and ecology, as well as original research papers on immunology, pathology, and epidemiology of parasitic diseases in the context of medical, veterinary and biological sciences. The journal also publishes short research notes, invited review articles, book reviews.
The journal was founded in 1953 as "Acta Parasitologica Polonica" by the Polish Parasitological Society and since 1954 has been published by W. Stefanski Institute of Parasitology of the Polish Academy of Sciences in Warsaw. Since 1992 in has appeared as Acta Parasitologica in four issues per year.
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