Zoologischer Anzeiger最新文献_第7页

Integrative descriptions of two new Thoracostomopsidae species (Nematoda, Enoplida) with the brief discussion on nematode spicules origin 两种胸孔虫科新种（线虫、线虫）的综合描述及对线虫针状体起源的简要讨论

IF 1.5 3区生物学 Q2 ZOOLOGY

Zoologischer Anzeiger

Pub Date : 2025-11-01 Epub Date: 2025-08-29 DOI: 10.1016/j.jcz.2025.08.012

Julia K. Zograf, Kseniya V. Efimova, Vladimir V. Mordukhovich

Summary - Nematodes from the family Thoracostomopsidae are ubiquitous in the World Ocean. Two species were found in subtidal bottom sedments off the eastern coast of the Kamchatka Peninsula. A taxonomic revision of the genus Trileptium has been provided. The new genus Neotrileptium gen. nov. was established and two new species Neotrileptium gracilis gen. et sp. nov. and Neotrileptium unicum gen. et sp. nov. are described. Neotrileptium gen.nov. shows all the main characters of Thoracostomopsidae, but differs from all known thoracostomopsids in the shape and position of the mandibular complexes (situated well forward in a spacious buccal cavity). The new species differ from others in this genus by a very large body size (more than 20,000 μm for N. unicum gen. et sp. nov. and more than 9000 μm for N. gracilis gen. et sp. nov.) and the presence of a pronounced circle of short cervical setae. Data on the nearly full length of the 18S rDNA, D1-D3 and D8-D10 domains of the 28S rDNA and ITS/5.8S and cox1 mtDNA nucleotide sequences were obtained. A phylogenetic analysis of the family Thoracostomopsidae was carried out using data on the nucleotide sequences of nuclear DNA of representatives of all three subfamilies (Thoracostominae, Enoplolaiminae, and Trileptiinae). The results of phylogenetic analysis did not confirm the monophyly of the last two subfamilies and many genera.

摘要-胸腹线虫科的线虫在世界海洋中普遍存在。在堪察加半岛东海岸的潮下底部沉积物中发现了两种。提供了三棱属的分类修订。建立了新属Neotrileptium gen. 11 .，并描述了新种Neotrileptium gracilis gen. et sp. 11和Neotrileptium unicum gen. et sp. 11两个新种。Neotrileptium gen.nov。显示了胸口科的所有主要特征，但在下颌复合体的形状和位置上与所有已知的胸口科不同（位于一个宽敞的颊腔中）。该新种与该属其他物种的不同之处是体型非常大（N. unicum gen. et sp. 11 .超过20,000 μm， N. gracilis gen. et sp. 11 .超过9000 μm），并且存在明显的短颈刚毛圈。获得了18S rDNA的近全长、28S rDNA的D1-D3和D8-D10结构域以及ITS/5.8S和cox1 mtDNA核苷酸序列的数据。利用3个亚科（胸口蝗科、Enoplolaiminae和Trileptiinae）代表的核DNA核苷酸序列数据对胸口蝗科进行了系统发育分析。系统发育分析结果未证实最后两个亚科和许多属的单系性。

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引用次数: 0

Evolving to invade: Using geometric morphometrics to assess wing shape variation in the Antarctic non-native fly Trichocera maculipennis 进化到入侵：利用几何形态计量学评估南极非本地蝇毛蝇翅膀形状的变化

IF 1.5 3区生物学 Q2 ZOOLOGY

Zoologischer Anzeiger

Pub Date : 2025-11-01 Epub Date: 2025-09-03 DOI: 10.1016/j.jcz.2025.09.001

Jordan Hernández-Martelo , Mathias Jabs , Tamara Contador , Sanghee Kim , Sook young Lee , Laura M. Pérez , Mónica Remedios-De-León , Enrique Morelli , Peter Convey , Hugo A. Benítez

Globalization has increased human movement, transforming ecosystems and introducing non-native species that threaten biodiversity, particularly in Antarctica. Due to its harsh climatic conditions, Antarctica has largely remained protected from biological invasions. However, rising human activity and environmental changes are facilitating the introduction of non-native species. The risks posed by species like Trichocera maculipennis are significant, as they can adapt and survive in new environments. This highlights the importance of understanding the adaptive factors that contribute to their success in order to prevent future invasions and protect the continent's unique ecosystem. The aim of this study was to quantify the wing morphological variation of T. maculipennis individuals associated with different Antarctic bases, analyzing this variation within a spatial and temporal context using morphometric tools. Samples were collected during Antarctic summer campaigns (2017/18 to 2019/20 and 2022/23) at the following research stations on King George Island: Artigas (Uruguay), Bellingshausen (Russia), Profesor Julio Escudero (Chile), and King Sejong (Korea). Morphometric analyses revealed changes in wing shape among study sites, with King Sejong individuals showing the most significant differences. Additionally, a temporal shift in wing size was observed, with specimens from 2017/18 and 2018/19 having larger average wings compared to those from 2019/20 and 2021/22. These results emphasize the importance of understanding the factors contributing to the success of non-native species to prevent future invasions and protect the unique ecosystem of Antarctica.

全球化增加了人类的流动，改变了生态系统，并引入了威胁生物多样性的非本地物种，特别是在南极洲。由于其恶劣的气候条件，南极洲在很大程度上受到保护，免受生物入侵。然而，人类活动的增加和环境的变化正在促进外来物种的引入。像maculpentrichocera这样的物种带来的风险是巨大的，因为它们可以在新的环境中适应和生存。这凸显了了解有助于它们成功的适应因素的重要性，以防止未来的入侵和保护非洲大陆独特的生态系统。本研究的目的是量化不同南极基地相关的斑羽羽翼个体的形态变异，并利用形态计量学工具分析这种变异在时空背景下的变化。在南极夏季活动期间（2017/18年至2019/20年和2022/23年），在乔治国王岛的Artigas（乌拉圭）、belingshausen（俄罗斯）、Julio Escudero教授（智利）和King Sejong（韩国）的研究站收集了样本。形态计量学分析揭示了研究地点之间翅膀形状的变化，世宗王个体表现出最显著的差异。此外，观察到翅膀大小的时间变化，2017/18和2018/19年的标本比2019/20和2021/22年的标本平均翅膀更大。这些结果强调了了解促成非本地物种成功的因素对防止未来入侵和保护南极洲独特的生态系统的重要性。

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引用次数: 0

Morphological variation in whiting (Merlangius merlangus) inhabiting the Black Sea and Sea of Marmara, Türkiye based on truss morphometry 生活在黑海和马尔马拉海的白鲑（Merlangius merlangus）的形态变异

IF 1.5 3区生物学 Q2 ZOOLOGY

Zoologischer Anzeiger

Pub Date : 2025-11-01 Epub Date: 2025-11-13 DOI: 10.1016/j.jcz.2025.11.003

Ahmet Mert Şenbahar

This study investigated population differences in whiting (Merlangius merlangus) from the Black Sea (BS) and the Sea of Marmara (SM) using truss morphometric analysis. Although whiting populations have been studied in major seas such as the Aegean, Mediterranean and Adriatic, this study fills a gap by exploring their morphological variation in diverse ecosystems, including inland seas like the SM. A total of 117 individuals were examined, with body shape variation assessed through a 17-point landmarks (yielding 38 truss network variables). Univariate ANOVA revealed that 33 out of 38 transformed truss morphometric parameters exhibited statistically significant variations across habitats. Principal component analysis (PCA) showed that the first two components (PC1 and PC2) accounted for 44.19 % and 10.34 % of the variation, respectively, cumulatively explaining 54.53 % of the total variance. Additionally, discriminant analysis revealed morphological separation between the BS and SM populations, and M. merlangus showed significant phenotypic heterogeneity between two Turkish seas.

采用桁架形态计量学方法，对黑海（BS）和马尔马拉海（SM）的白鲟（Merlangius merlangus）种群差异进行了研究。尽管人们已经在爱琴海、地中海和亚得里亚海等主要海域研究过白鲸种群，但这项研究通过探索白鲸在不同生态系统中的形态变化，包括像SM这样的内海，填补了这一空白。总共检查了117个人，通过17点地标评估体型变化（产生38个桁架网络变量）。单变量方差分析显示，38个转换后的桁架形态计量参数中有33个在不同生境中表现出显著的统计学差异。主成分分析（PCA）表明，前两个分量（PC1和PC2）分别占变异的44.19%和10.34%，累计解释总变异的54.53%。此外，判别分析还显示了BS和SM种群之间的形态差异，并且merlangus在两个土耳其海之间表现出显著的表型异质性。

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引用次数: 0

Updated taxonomy and new insights into the evolutionary relationships of the genus Parahadronchus Mulvey, 1978 (Nematoda, Mononchida, Iotonchidae) after the study of three Vietnamese species 对越南三个种的研究，对Parahadronchus Mulvey属（线虫目，单爪目，蹼爪目）的分类更新和进化关系的新认识

IF 1.5 3区生物学 Q2 ZOOLOGY

Zoologischer Anzeiger

Pub Date : 2025-11-01 Epub Date: 2025-10-13 DOI: 10.1016/j.jcz.2025.10.006

Tam T.T. Vu , Anh D. Nguyen , Reyes Peña-Santiago

Three (one new and two known) species of the genus Parahadronchus, found in natural areas of Vietnam, are characterized, including morphological descriptions, morphometrics, illustrations and molecular (18 S, 28 S) study. New data of Parahadronchus shakili and Parahadronchus siroii are provided. Parahadronchus pusillus sp. n. is distinguished by its 1.30–1.52 mm long body, lip region visibly expanded, 21–23 μm wide and offset by marked depression, buccal cavity 20–24 μm long with dorsal tooth apex at its middle and 2–4 (often 3) teeth on each subventral plate, neck 229–296 μm long, female genital system mono-prodelphic, slightly posterior (V = 50–56) and transverse vulva, tail very long and filiform (338–518 μm, c = 2.9–3.8, c’ = 17–23), and male unknown. Molecular analyses support the monophyly of Parahadronchus and identify fine major clades within the Mononchida tree, but their relationships significantly differ depending on the considered gene. The taxonomy of the genus is revised: emended diagnosis, list of species, key to their identification and a compendium of main morphometrics. Hadronchus kerangensis is regarded as a valid taxon and transferred to Parahadronchus.

本文对在越南自然地区发现的3种（1新种和2已知种）副ahadronchus进行了形态学描述、形态测量学、图解和分子（18s, 28s）研究。提供了沙基利副鸭嘴龙和siroii副鸭嘴龙的新资料。pusillus Parahadronchus sp. n.的特征是体长1.30-1.52 mm，唇区明显扩张，宽21-23 μm，有明显凹陷，口腔长20-24 μm，中间有背齿尖，每个腹下板上有2-4（通常为3）颗牙齿，颈部长229-296 μm，雌性生殖系统单前倾，稍后（V = 50-56）和横向外阴，尾巴很长，呈丝状（338-518 μm, c = 2.9-3.8, c ' = 17-23），雄性未知。分子分析支持副鸭嘴龙的单系性，并在单目目树中确定了精细的主要分支，但它们的关系因所考虑的基因而显着不同。对属的分类学进行了修订：订正的诊断、种表、鉴定要点和主要形态计量学简编。keranghadronchus被认为是一个有效的分类群，并被转移到副Hadronchus。

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引用次数: 0

A new species of eelpout of the genus Lycenchelys Gill from the bathyal depths of the Sea of Okhotsk 鄂霍次克海深海海鳗属一新种

IF 1.5 3区生物学 Q2 ZOOLOGY

Zoologischer Anzeiger

Pub Date : 2025-11-01 Epub Date: 2025-09-09 DOI: 10.1016/j.jcz.2025.09.004

Mikhail V. Nazarkin

A new species of eelpout, Lycenchelys hexapora, is described based on the holotype obtained from the southern part of the Sea of Okhotsk, at a depth of 1040–1050 m. The new species is characterized by a low vertebral count for its genus (89), a black stomach, and six postorbital pores, that together distinguish it from all other congeners. The new species is the sixth representative of Lycenchelys in the Sea of Okhotsk. The possible closest relatives of the new species are distributed hundreds kilometers away from its locality, which hints to the extensive area of their common ancestor.

根据鄂霍次克海南部1040-1050米深度的完整模式，描述了一新种Lycenchelys hexapora。新物种的特点是其属的脊椎计数低（89），黑色的胃和六个眶后孔，这些将其与所有其他同系物区分开来。该新种是鄂霍次克海的第六个代表物种。这些新物种的近亲可能分布在距离其所在地数百公里的地方，这暗示了它们共同祖先的广阔区域。

引用次数: 0

New genera of Neotropical Maindroniidae, with a redescription of Maindronia neotropicalis (Insecta, Zygentoma) 新热带棉蚜科新属及新热带棉蚜重描述（昆虫亚目，Zygentoma）

IF 1.5 3区生物学 Q2 ZOOLOGY

Zoologischer Anzeiger

Pub Date : 2025-11-01 Epub Date: 2025-11-03 DOI: 10.1016/j.jcz.2025.10.010

John Irish , Álvaro Zúñiga-Reinoso , Hanna Cieszynski , Hans Pohl , Reinhard Predel

Maindroniidae is a rarely-encountered monogeneric family of Zygentoma, of which only four species are described so far. Recent surveys in the Atacama Desert have revealed in the hyperarid core an astonishing molecular and morphological diversity of these insects. The present work aims to provide the basis for a systematic taxonomic analysis of this diversity. The former Maindronia neotropicalis from Chile is redescribed in a new genus as Atacamus neotropicalis, along with a second new genus and species, Peruatacamus atunpacha from Peru. Neotropical Maindroniidae are separated from Old World Maindroniidae and placed in the new subfamilies Atacaminae and Maindroniinae respectively.

柱头蝇科是一种罕见的单属柱头蝇科，目前只发现了4种。最近在阿塔卡马沙漠的调查显示，在极度干旱的核心地带，这些昆虫的分子和形态多样性令人惊讶。本工作旨在为系统地对这种多样性进行分类分析提供基础。来自智利的前新热带Maindronia neotropicalis被重新描述为新属Atacamus neotropicalis，以及来自秘鲁的第二个新属和新种Peruatacamus atunpacha。新热带maindriniae科从旧大陆maindriniae科分离出来，分别归入Atacaminae亚科和maindriniae亚科。

引用次数: 0

Four species of the genus Diacavolinia van der Spoel, 1987 (Gastropoda: Pteropoda: Cavoliniidae) new to India 1987年印度Diacavolinia van der Spoel属四种（腹足目：翼足目：cavoliniae）

IF 1.2 3区生物学 Q2 ZOOLOGY

Zoologischer Anzeiger

Pub Date : 2025-09-01 Epub Date: 2025-07-05 DOI: 10.1016/j.jcz.2025.07.004

Kiran Shah, P.M. Mohan

This study reports four species of the genus Diacavolinia, belonging to the family Cavoliniidae J. E. Gray, 1850 (1815) and the order Pteropoda Cuvier, 1804, newly recorded from India. The species are Diacavolinia deshayesi van der Spoel, Bleeker & Kobayasi, 1993; Diacavolinia grayi van der Spoel, Bleeker & Kobayasi, 1993; Diacavolinia mcgowani van der Spoel, Bleeker & Kobayasi, 1993 and Diacavolinia strangulata (Deshayes, 1823). These pteropod species were collected from sediment samples in the Nicobar Islands during the voyage of FORV Sagar Sampada (Cruise No. 292). This paper describes their identifying characteristics, morphometric measurements and distribution.

本文报道了新记录于印度的Cavoliniidae J. E. Gray（1850年）和Pteropoda Cuvier（1804年）的Diacavolinia属四种。该物种为Diacavolinia deshayesi van der spel， Bleeker &；Kobayasi, 1993;Diacavolinia grayi van der Spoel, Bleeker &；Kobayasi, 1993;Diacavolinia mcgowani van der Spoel, Bleeker &；Kobayasi， 1993和Diacavolinia strangulata （Deshayes, 1823）。这些翼足类动物是在FORV Sagar Sampada号（第292次航行）航行期间从尼科巴群岛的沉积物样本中收集的。本文介绍了它们的识别特征、形态计量测量和分布。

引用次数: 0

Description of the first continental European species of the huntsman spider Cebrennus (Araneae, Sparassidae), confirming the presence of the genus in the region 描述了欧洲大陆第一个猎人蛛（蜘蛛目，蛛蛛科）种，证实了该属在该地区的存在

IF 1.5 3区生物学 Q2 ZOOLOGY

Zoologischer Anzeiger

Pub Date : 2025-09-01 Epub Date: 2025-08-21 DOI: 10.1016/j.jcz.2025.08.005

Marc Domènech , Arnau Calatayud-Mascarell , Álvaro Pérez-Gómez , Mattia Giacomelli , Arturo Iglesias Baquero , Maite Mojica , Juan José Guerrero , Miquel A. Arnedo , Jesus Lozano-Fernandez

Because of its wide variety of climates and habitats, the Iberian Peninsula harbors a rich and diverse arachnological fauna, including numerous endemisms. This is especially true for habitats like arid and semiarid areas. Many of them are threatened despite containing interesting –and sometimes uncharacterised– fauna, such as the huntsman spiders in the genus Cebrennus.

Previously known to occur from North Africa to the Middle East, new sightings of these spiders in Europe have drawn attention. Here, we use morphological and molecular data to describe a new species of Cebrennus from specimens collected in eastern Spain. Additionally, we use genetic data to place the new species, Cebrennus herculis sp. n., in a phylogenetic context and speculate on the biogeographic processes that lead to its presence in Europe.

Genetic distances among individuals of C. herculis sp. n. were low for the three molecular markers analysed (COI, 18S and 28S). Our phylogenetic tree recovered the monophyly of the Iberian Cebrennus, and placed them as sister to the only African representative with genetic data available, Cebrennus rungsi. Furthermore, divergence time analysis revealed a Palaeogene-Neogene split between the Iberian lineage and C. rungsi, compatible with an allopatric speciation following one of the ancient connections between Europe and Africa landmasses.

These findings show that habitats such as arid and semiarid areas still hide new and interesting diversity, underscoring the importance of preserving them.

由于气候和栖息地的多样性，伊比利亚半岛拥有丰富多样的蜘蛛动物群，包括许多地方性动物。对于干旱和半干旱地区这样的栖息地来说尤其如此。尽管其中有一些有趣的——有时是没有特征的——动物，比如猎蛛属的猎人蜘蛛，但它们中的许多都受到了威胁。以前人们知道这些蜘蛛出现在北非到中东，但在欧洲的新发现引起了人们的注意。在这里，我们使用形态学和分子数据来描述一个来自西班牙东部标本的新物种。此外，我们使用遗传数据将新物种cerbrennus herculis sp. n.置于系统发育背景下，并推测导致其出现在欧洲的生物地理过程。3个分子标记（COI、18S和28S）的遗传距离较低。我们的系统发育树恢复了伊比利亚羊brennus的单系，并将它们作为唯一具有遗传数据的非洲代表羊brennus rungsi的姐妹。此外，分化时间分析揭示了伊比利亚谱系和C. rungsi之间的古近纪-新近纪分裂，这与欧洲和非洲大陆之间古代联系之后的异域物种形成相一致。这些发现表明，干旱和半干旱地区等栖息地仍然隐藏着新的和有趣的多样性，强调了保护它们的重要性。

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引用次数: 0

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

IF 1.2 3区生物学 Q2 ZOOLOGY

Zoologischer Anzeiger

Pub Date : 2025-09-01 Epub 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

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.

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。

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引用次数: 0

Revealing new taxa and biogeographic patterns in shallow and deep-sea Marginellidae gastropods of the Southwestern Atlantic 揭示西南大西洋浅海和深海腹足纲新分类群和生物地理格局

IF 1.5 3区生物学 Q2 ZOOLOGY

Zoologischer Anzeiger

Pub Date : 2025-09-01 Epub Date: 2025-07-07 DOI: 10.1016/j.jcz.2025.07.002

Valeria Teso , Fabrizio Scarabino , Leonel Pacheco , Guido Pastorino

A comprehensive morphological analysis of Marginellidae species from shallow to deep waters off Uruguay and Argentina is presented, incorporating both traditional techniques and geometric morphometrics. Shell microstructure, radulae, protoconch, and penes are described and illustrated using SEM images. The effectiveness of geometric morphometrics in species discrimination is demonstrated. In the study area, the family includes nine living species-six of them new-distributed among four genera, including Pustinella gen. nov. These are Prunum martini, Prunum rubens, Prunum juancarlosi sp. nov., Volvarina warrenii, Volvarina castanea sp. nov., Volvarina acicularis sp. nov., Volvarina abyssalis sp. nov., Pustinella cymatilis gen. et sp. nov., and Pustinella felidamia gen. et sp. nov. These species are restricted to the Southwestern Atlantic, ranging from Rio de Janeiro, Brazil, to Burdwood Bank (∼54°S), Argentina. Five of the new species inhabit exclusively deep waters, down to 2457 m, while the remaining four occur on the continental shelf. Additionally, two poorly known antarctic species, Marginella hyalina and Marginella ealesae are compared and included in Pustinella gen. nov. Lectotype is designed for Marginella fraterculus, a synonym of P. martini, and Marginella dozei is proposed as a new synonym of V. warrenii. Geographic and bathymetric distributions of all species are detailed based on field observations and museum records. Deep-sea species show patterns of aggregation influenced by specific marine currents, whereas shelf species correspond to the Argentine and Magellanic provinces.

对乌拉圭和阿根廷海域浅海到深水的边际鱼进行了全面的形态分析，结合了传统技术和几何形态计量学。壳的微观结构，孔洞，原海螺，和penes描述和说明使用扫描电镜图像。证明了几何形态计量学在物种识别中的有效性。在研究区，该科有9个现存种，其中6个为新种，分布于4个属，包括11月臭臭霉，马氏臭臭霉，鲁本臭臭霉，黄臭霉，华氏臭臭霉，castanea臭臭霉，acacularis臭臭霉，abyssalis臭臭霉，cymati臭臭霉，11月臭臭霉，felidamia臭臭霉，11月臭臭霉。至阿根廷的伯德伍德银行（~ 54°S）。其中五种新物种只生活在2457米深的深水中，而其余四种则生活在大陆架上。此外，将两个鲜为人知的南极种Marginella hyalina和Marginella ealesae进行了比较，并将其纳入了Pustinella gen. 11 .中。根据野外观察和博物馆记录，详细介绍了所有物种的地理和水深分布。深海物种显示出受特定洋流影响的聚集模式，而大陆架物种则对应于阿根廷和麦哲伦省。

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引用次数: 0