New and previously described species of Ameloblastella (Monogenoidea: Dactylogyridae) parasitizing Hypophthalmus marginatus and Pimelodina flavipinnis (Siluriformes: Pimelodidae) from the Tocantins River, Maranhão State, Brazil.

IF 1 4区医学 Q4 PARASITOLOGY

Systematic Parasitology Pub Date : 2023-12-20 DOI:10.1007/s11230-023-10125-0

Yuri Costa de Meneses, Marcia Cristina Nascimento Justo, Diego Carvalho Viana, Simone Chinicz Cohen

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Abstract

A new and two previously described species of Ameloblastella Kritsky, Mendoza-Franco & Scholz, 2000 were found in the gills of two pimelodid catfishes from the Tocantins River, Maranhão State, Brazil: Ameloblastella prima n. sp. from Pimelodina flavipinnis Steindachner, and A. edentensis Mendoza-Franco, Mendoza-Palmero & Scholz, 2016 and A. peruensis Mendoza-Franco, Mendoza-Palmero & Scholz, 2016 from Hypophthalmus marginatus Valenciennes. The new species differs from its congeners by having an accessory piece tubular, covered by a delicate membranous cap at 2/3 of the length, by the shape of the ventral and dorsal anchors, in which the ventral anchor is represented by a curved shaft in a position of 80° degrees, with delicate ornamentations located at the superficial and deep root areas, and the dorsal anchor with a long, well-developed and convex superficial root and short deep root, also presenting delicate ornamentations at the superficial and deep root areas. The present study provides new biogeographical data on the two previously described species of Ameloblastella and improves the knowledge on the species of Monogenoidea from the Neotropical Region, increasing to 14 the number of known species of Ameloblastella for this region.

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寄生于巴西马拉尼昂州托坎廷斯河（Tocantins River, Maranhão State）鲢鱼（Hypophthalmus marginatus）和鲦鱼（Pimelodina flavipinnis）（丝形目：鲦鱼科）的新种和以前描述过的Ameloblastella（单源动物门：Dactylogyridae）。

在巴西马拉尼昂州托坎廷斯河（Tocantins River）的两条鲶鱼的鳃中发现了一种新的和两种以前描述过的 Ameloblastella Kritsky, Mendoza-Franco & Scholz, 2000：Ameloblastella prima n. sp.来自Pimelodina flavipinnis Steindachner，A. edentensis Mendoza-Franco, Mendoza-Palmero & Scholz, 2016和A. peruensis Mendoza-Franco, Mendoza-Palmero & Scholz, 2016来自Hypophthalmus marginatus Valenciennes。该新种与其同属种的不同之处在于：附属片呈管状，长度的 2/3 被精致的膜盖覆盖；腹锚和背锚的形状不同，其中腹锚呈 80° 角的弯曲轴状，浅根和深根区域有精致的装饰；背锚的浅根和深根较长、发达且凸起，深根较短，浅根和深根区域也有精致的装饰。本研究为之前描述的两个Ameloblastella物种提供了新的生物地理学数据，并增进了对新热带地区单源目物种的了解，使该地区已知的Ameloblastella物种增加到14个。

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来源期刊

Systematic Parasitology 医学-寄生虫学

CiteScore

2.20

自引率

23.10%

发文量

审稿时长

6-12 weeks

期刊介绍： Systematic Parasitology publishes papers on the systematics, taxonomy and nomenclature of the following groups: Nematoda (including plant-parasitic), Monogenea, Digenea, Cestoda, Acanthocephala, Aspidogastrea, Cestodaria, Arthropoda (parasitic copepods, hymenopterans, mites, ticks, etc.), Protozoa (parasitic groups), and parasitic genera in other groups, such as Mollusca, Turbelleria, etc. Systematic Parasitology publishes fully illustrated research papers, brief communications, and fully illustrated major revisions. In order to maintain high standards, all contributors describing new taxa are asked to state clearly where the holotype is deposited and to make paratypes available for examination by the referees. It is recognized that, in some cases, this may cause problems for the authors, but it is hoped that by adhering to this rule authors may be protected against rapid synonymy of their taxa, and the types will be preserved for posterity.