Taxonomy and systematics of Lepidodermella (Gastrotricha: Chaetonotidae): New species, new records, neotype designation and molecular data from Brazil

IF 1.5 3区生物学 Q2 ZOOLOGY

Zoologischer Anzeiger Pub Date : 2025-07-03 DOI:10.1016/j.jcz.2025.07.001

Axell Kou Minowa , Kelly Fernanda Acosta Salgado , Sindy Cabarca , André Rinaldo Senna Garraffoni

{"title":"Taxonomy and systematics of Lepidodermella (Gastrotricha: Chaetonotidae): New species, new records, neotype designation and molecular data from Brazil","authors":"Axell Kou Minowa , Kelly Fernanda Acosta Salgado , Sindy Cabarca , André Rinaldo Senna Garraffoni","doi":"10.1016/j.jcz.2025.07.001","DOIUrl":null,"url":null,"abstract":"<div><div>Gastrotricha are key components of the meiofaunal communities in diverse aquatic environments worldwide. Despite their ubiquity, knowledge of their diversity remains limited, particularly in Neotropical freshwater ecosystems. This study examines the genus <em>Lepidodermella</em> Blake, 1933 in Brazil, designating a neotype for <em>Lepidodermella broa</em> Kisielewski, 1991 based on material collected from <em>locus typicus,</em> and describing a new species, <em>Lepidodermella pirakitan</em> sp. nov., from sampling sites in the state of Ceará and São Paulo. The new species is characterized by a distinctive cuticular armature, with geometrically shaped smooth scales covering the dorsal head, neck, and trunk, distinguishing it from other congeners. Molecular analyses of ribosomal and mitochondrial genes reassessed the phylogenetic position of <em>Lepidodermella</em> species, revealing that the monophyly of the genus was not supported. We also updated the dichotomous key for freshwater species of the genus, incorporating the newly described species and updated distributional data.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"318 ","pages":"Pages 38-52"},"PeriodicalIF":1.5000,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zoologischer Anzeiger","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0044523125000683","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ZOOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

Gastrotricha are key components of the meiofaunal communities in diverse aquatic environments worldwide. Despite their ubiquity, knowledge of their diversity remains limited, particularly in Neotropical freshwater ecosystems. This study examines the genus Lepidodermella Blake, 1933 in Brazil, designating a neotype for Lepidodermella broa Kisielewski, 1991 based on material collected from locus typicus, and describing a new species, Lepidodermella pirakitan sp. nov., from sampling sites in the state of Ceará and São Paulo. The new species is characterized by a distinctive cuticular armature, with geometrically shaped smooth scales covering the dorsal head, neck, and trunk, distinguishing it from other congeners. Molecular analyses of ribosomal and mitochondrial genes reassessed the phylogenetic position of Lepidodermella species, revealing that the monophyly of the genus was not supported. We also updated the dichotomous key for freshwater species of the genus, incorporating the newly described species and updated distributional data.

查看原文本刊更多论文

巴西鳞翅目鳞翅目的分类和系统：新种、新记录、新型命名和分子资料

腹虫是世界上多种水生环境中小动物群落的重要组成部分。尽管它们无处不在，但对其多样性的认识仍然有限，特别是在新热带淡水生态系统中。本文研究了1933年在巴西发现的鳞片dermella Blake属，根据典型地收集的资料确定了1991年的鳞片dermella broa Kisielewski属的新种，并描述了在巴西塞埃尔州和圣保罗州取样点发现的鳞片dermella pirakitan sp. nov.。这个新物种的特点是有一个独特的表皮枢椎，几何形状的光滑鳞片覆盖在头部背部、颈部和躯干上，使其与其他同系物区别开来。核糖体和线粒体基因的分子分析重新评估了鳞翅目物种的系统发育位置，表明该属的单系性不被支持。我们还更新了该属淡水物种的二分类键，包括新描述的物种和更新的分布数据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Zoologischer Anzeiger 生物-动物学

CiteScore

2.80

自引率

7.10%

发文量

审稿时长

>12 weeks

期刊介绍： Zoologischer Anzeiger - A Journal of Comparative Zoology is devoted to comparative zoology with a special emphasis on morphology, systematics, biogeography, and evolutionary biology targeting all metazoans, both modern and extinct. We also consider taxonomic submissions addressing a broader systematic and/or evolutionary context. The overall aim of the journal is to contribute to our understanding of the organismic world from an evolutionary perspective. The journal Zoologischer Anzeiger invites suggestions for special issues. Interested parties may contact one of the editors.