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A comparative morphological analysis of three mud crabs species (Scylla spp.) across two oceanic regions along the coastal waters of Thailand 泰国沿海两洋区三种泥蟹的比较形态学分析

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-09-01 Epub Date: 2025-07-09 DOI: 10.1016/j.jcz.2025.07.006

Sofiyudin Maae , Pornpimon Chuaduangpui , Husneya Rensep , Payap Masniyom , Sitthisak Jantarat , Supaporn Saengkaew , Teuku Haris Iqbal , Sukree Hajisamae

{"title":"A comparative morphological analysis of three mud crabs species (Scylla spp.) across two oceanic regions along the coastal waters of Thailand","authors":"Sofiyudin Maae , Pornpimon Chuaduangpui , Husneya Rensep , Payap Masniyom , Sitthisak Jantarat , Supaporn Saengkaew , Teuku Haris Iqbal , Sukree Hajisamae","doi":"10.1016/j.jcz.2025.07.006","DOIUrl":"10.1016/j.jcz.2025.07.006","url":null,"abstract":"<div><div>This study aimed to investigate morphological variation within and between three <em>Scylla</em> species: <em>Scylla olivacea</em>, <em>Scylla paramamosain</em>, and <em>Scylla tranquebarica</em>. A total of 1175 mud crab specimens were collected from two distinct oceanic regions: the Gulf of Thailand (Pacific Ocean) and the Andaman Sea (Indian Ocean). A comprehensive suite of 22 morphometric characters was meticulously measured on each individual using a digital vernier caliper to a precision of 0.01 mm. Canonical Discriminant Function Analysis (CDFA) was employed to explore patterns of phenotypic divergence across species and geographic regions. Additionally, Principal Component Analysis (PCA) and CDFA were utilized to assess intraspecific sexual dimorphism within each species. The findings of this study confirmed significant phenotypic variation among both male and female individuals of all three <em>Scylla</em> species. Furthermore, pronounced intraspecific sexual dimorphism was observed, with distinct morphological differences evident in 16 characters for <em>S. olivacea</em>, 14 for <em>S. paramamosain</em>, and 9 for <em>S. tranquebarica</em>. Moreover, populations of <em>S. olivacea</em> and <em>S. paramamosain</em> from the Pacific and Indian Oceans exhibited significant morphological differentiation. These results provide crucial insights into the morphological diversity of these economically important species and offer a valuable scientific foundation for future research and conservation efforts.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"318 ","pages":"Pages 23-37"},"PeriodicalIF":1.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144605753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First record of Aegla leach, 1821 (Decapoda: Anomura) in drainages flowing into Iguaçu national park with description of two new species 1821年在流入伊瓜帕拉苏国家公园的水系中首次记录了伊瓜拉淋滤（十足目：反常目），并描述了两个新种

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-09-01 Epub Date: 2025-07-05 DOI: 10.1016/j.jcz.2025.07.005

Tiago Arantes , Lucas Oliveira-Rogeri , Gabriel L. Bochini , Priscila S.R. Frazato , Lenice Souza-Shibatta , Fernando L. Mantelatto , Gustavo M. Teixeira

{"title":"First record of Aegla leach, 1821 (Decapoda: Anomura) in drainages flowing into Iguaçu national park with description of two new species","authors":"Tiago Arantes , Lucas Oliveira-Rogeri , Gabriel L. Bochini , Priscila S.R. Frazato , Lenice Souza-Shibatta , Fernando L. Mantelatto , Gustavo M. Teixeira","doi":"10.1016/j.jcz.2025.07.005","DOIUrl":"10.1016/j.jcz.2025.07.005","url":null,"abstract":"<div><div>Iguaçu National Park, located in Brazil, although internationally recognized for its scenic waterfalls, remains vastly underexplored in terms of its freshwater invertebrate fauna. In this study, we report the first confirmed records of the freshwater crab genus <em>Aegla</em> Leach, 1821 (Decapoda: Anomura) in streams flowing into this protected area and describe two new species: <em>Aegla naipi</em> sp. nov. and <em>Aegla taroba</em> sp. nov. Our integrative approach, combining detailed morphological comparisons and molecular phylogenetic analyses, reveals that these taxa represent a distinct lineage within the <em>Aegla</em> clade, reflecting complex patterns of endemism and historical isolation. Specimens were collected and preserved in alcohol, examined morphologically, and analyzed using COI and COII sequences with species delimitation methods. Both species show restricted distributions and exhibit diagnostic characters that differentiate them from all known congeners, emphasizing the neglected micro-endemism in the region. Our findings not only expand the known distribution of the genus <em>Aegla</em> but also draw attention to the urgent need for biodiversity assessments and conservation strategies focused on aquatic microhabitats in remnants of the Atlantic Forest.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"318 ","pages":"Pages 53-64"},"PeriodicalIF":1.2,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Quantitative evaluation of spatial biometric parameters affecting body shape variation among three freshwater fish species” [Zool. Anz. 315 (2025) 75–88] “影响三种淡水鱼体型变化的空间生物特征参数的定量评估”[Zool]的勘误表。Anz. 315 (2025) 75-88]

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-07-01 Epub Date: 2025-06-04 DOI: 10.1016/j.jcz.2025.03.003

Mohd Sadiq, Lubna Yasmeen, Insha Hassan, Mohammad Afzal Khan

引用次数: 0

Overview of morphology and neuromuscular system of coronate polyps on the example of Linuche sp. (Scyphozoa, Coronatae) 冠状息肉形态及神经肌肉系统的研究——以冠状动物Linuche sp.为例

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-07-01 Epub Date: 2025-06-23 DOI: 10.1016/j.jcz.2025.06.003

Irina Salova , Maria Domracheva , Ekaterina Nefedova , Valeriia Khabibulina

{"title":"Overview of morphology and neuromuscular system of coronate polyps on the example of Linuche sp. (Scyphozoa, Coronatae)","authors":"Irina Salova , Maria Domracheva , Ekaterina Nefedova , Valeriia Khabibulina","doi":"10.1016/j.jcz.2025.06.003","DOIUrl":"10.1016/j.jcz.2025.06.003","url":null,"abstract":"<div><div>Jellyfish from the class Scyphozoa have been the subject of numerous studies due to their blooms and impacts on the economy. The polypoid stage plays a main role in the occurrence of blooms, as it forms young medusae during strobilation. Ecological aspects that affect the strobilation has been well studied over the years, while morphological data on polypoid stage is available mainly for model species, such as members of genera <em>Aurelia</em> and <em>Cassiopea</em>. One of the less studied polyps are from the order Coronatae – the basal group of Scyphozoa. In this work, we focused on the morphology of the <em>Linuche</em> sp. coronate polyp.</div><div>For the first time, we describe the histological features and general topology of the neuromuscular system of <em>Linuche</em> sp. polyps using confocal laser scanning microscopy and semi-thin sections, also we provide information on the structure of its periderm tube and cusps – important taxonomic characters of coronate polyps – with usage of scanning electron microscopy. Its nervous system is presented as a nerve net in the body column with longitudinal neuron groups accompanying the muscle bands, and two nerve rings in the capitulum, acting as integrative centers. The muscular system in <em>Linuche</em> sp. has a complex organization with numerous groups of muscular processes in the capitulum that are intertwined with the musculature of the body column and tentacles. Comparison of the organization of polyps from Coronatae and Discomedusae revealed significant differences in their anatomy, due to the presence of the periderm tube in coronates.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 139-154"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Systematics of the genus Dilta Strand, 1911 (Machilidae) in the Canary Islands (NW Africa, Spain) with comments on the phylogeny of Microcoryphia (Insecta) 加那利群岛（西北非洲，西班牙）Dilta Strand属的系统分类学（马基利亚科）——兼论微毛虫（昆虫科）的系统发育

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-07-01 Epub Date: 2025-05-14 DOI: 10.1016/j.jcz.2025.05.005

Iñigo Palacios–Martinez, Yolanda Jiménez-Ruiz, Pau Otero-Ferre, Mario García-París

{"title":"Systematics of the genus Dilta Strand, 1911 (Machilidae) in the Canary Islands (NW Africa, Spain) with comments on the phylogeny of Microcoryphia (Insecta)","authors":"Iñigo Palacios–Martinez, Yolanda Jiménez-Ruiz, Pau Otero-Ferre, Mario García-París","doi":"10.1016/j.jcz.2025.05.005","DOIUrl":"10.1016/j.jcz.2025.05.005","url":null,"abstract":"<div><div>Phylogenetic inferences based on morphological and genetic data often exhibit discrepancies due to evolutionary convergences, complicating the accurate determination of evolutionary relationships. In Microcoryphia, the lack of comprehensive genetic studies has left significant gaps some of which we try to address in this work. We conducted molecular analyses using mitochondrial and nuclear markers on specimens from Morocco, the Iberian Peninsula, and the Canary and Balearic Islands, representing the two known families and 10 genera within the order. During our study, we revised the nomenclature of the studied taxa, and established three new synonymies (<em>Machilis fastuosa</em> Lucas, 1846 = <em>Machilis bimaculata</em> Lucas, 1846 <strong>n. syn.</strong> = <em>Machilis crassicornis</em> Lucas, 1846 <strong>n. syn.</strong> = <em>Machilis italicus</em> Grassi, 1887 <strong>n. syn.</strong>) and a new combination, <em>Dilta fastuosa</em> (Lucas, 1846) <strong>comb. nov.</strong> In the Canary Islands, our sampling led to the discovery of three new species of the genus <em>Dilta</em> Strand, 1911 with morphological and molecular distinctive traits that differentiate them from other congeneric species (<em>Dilta (Budilta) tilosina</em> Palacios-Martínez <em>&</em> García-París <strong>sp. nov.</strong>; <em>Dilta (Budilta) benahoarense</em> Palacios-Martínez <em>&</em> García-París <strong>sp. nov.</strong>; and <em>Dilta (Budilta) islabonita</em> Palacios-Martínez <em>&</em> García-París <strong>sp. nov.</strong>). The phylogenetic analyses herein suggest that a hidden rapid evolutionary radiation of <em>Dilta</em> took place in the Canary Islands archipelago. Ours findings show the necessity for a comprehensive taxonomic review of the family Machilidae, integrating molecular and morphological data to resolve existing inconsistencies and provide a clearer understanding of their evolutionary history.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 1-18"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144089045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Taxonomy, molecular phylogeny and distribution of Actinopus Perty, 1833 (Araneae: Actinopodidae) in central Argentina 阿根廷中部放线虫的分类、分子系统发育及分布（蜘蛛目：放线虫科）

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-07-01 Epub Date: 2025-04-25 DOI: 10.1016/j.jcz.2025.04.007

Nicoletta Micaela , Soresi Daniela , Ferretti Nelson

{"title":"Taxonomy, molecular phylogeny and distribution of Actinopus Perty, 1833 (Araneae: Actinopodidae) in central Argentina","authors":"Nicoletta Micaela , Soresi Daniela , Ferretti Nelson","doi":"10.1016/j.jcz.2025.04.007","DOIUrl":"10.1016/j.jcz.2025.04.007","url":null,"abstract":"<div><div><em>Actinopus</em> comprises 98 species of trapdoor spiders endemic to the Neotropic region. In southwestern Buenos Aires, Argentina, four species are recorded: <em>Actinopus casuhati</em> Ríos-Tamayo and Goloboff, 2018, <em>A. laventana</em> Miglio, Pérez-Miles & Bonaldo, 2020, <em>Actinopus patagonia</em> Ríos-Tamayo and Goloboff, 2018, and <em>Actinopus puelche</em> Ríos-Tamayo and Goloboff, 2018; females of <em>A. puelche</em> are unknown. By the examination of <em>Actinopus</em> from Bahía Blanca district, southwestern Buenos Aires province, we found specimens that do not fit within any of the known species. Thus, we implemented an integrative approach combining molecular and morphological evidence to describe, diagnose and illustrate <em>Actinopus obrerografico</em> sp. nov. In addition, we describe for the first time the female of <em>A. puelche.</em> We also present new distributional records for <em>A. patagonia</em> and <em>A. puelche</em>. Males of <em>A. obrerografico</em> sp. nov. Can be distinguished by having red tarsi and metatarsi, and bulb with well developed keels and apophysis, and no denticles along the inferior prolateral keel; females, can be distinguished by the spermathecae, bilobed with external lobe well developed and an internal basal proejection. Females of <em>A. puelche</em> can be distinguished by having a spermathecae with slight marked lobes. A first molecular phylogeny using Maximum likelihood yielded <em>Actinopus</em> as monophyletic, <em>A. obrerografico</em> sp. nov. as a distinct clade and <em>A. puelche</em> more related to the remaining Argentinean species despite living in sympatry with <em>A. obrerografico</em> sp. nov.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 33-44"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144169439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Less than expected: species diversity of the Ctenomys mendocinus species group (Rodentia, Ctenomyidae) in north–central Argentina 低于预期：阿根廷中北部毛线蛛物种群（啮齿目，毛线蛛科）的物种多样性

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-07-01 Epub Date: 2025-06-17 DOI: 10.1016/j.jcz.2025.06.002

Carolina Jankowicz , Pablo Teta , M. Jimena Gomez Fernandez , Fernando J. Mapelli

{"title":"Less than expected: species diversity of the Ctenomys mendocinus species group (Rodentia, Ctenomyidae) in north–central Argentina","authors":"Carolina Jankowicz , Pablo Teta , M. Jimena Gomez Fernandez , Fernando J. Mapelli","doi":"10.1016/j.jcz.2025.06.002","DOIUrl":"10.1016/j.jcz.2025.06.002","url":null,"abstract":"<div><div>The genus <em>Ctenomys</em> is one of the most species-rich genera among mammals. The taxonomy of its species is under constant revision as new data and analytical tools become available. Integrative approaches provide a valuable framework for incorporating morphological, genetic, and biogeographic criteria, helping to clarify ambiguous species boundaries. This study uses an integrative approach to evaluate the phylogenetic relationships among some nominal forms of the Mendocinus group of the genus <em>Ctenomys</em>, distributed in north–central Argentina: <em>Ctenomys bergi</em>, <em>Ctenomys bonettoi</em>, <em>Ctenomys rionegrensis</em> and <em>C. “</em>y<em>olandae”</em>. From a morphological perspective, craniodental measurements were compared using descriptive statistics and multivariate statistical analyses. From a genetic perspective, Bayesian and Maximum Likelihood phylogenetic trees were reconstructed using complete sequences of the mitochondrial cytochrome <em>b</em> gene. Our results showed that both <em>C. bonettoi</em> and <em>C. “</em>y<em>olandae”</em> are genetically and morphologically indistinguishable from <em>C. bergi</em> and should therefore be synonymized with the latter. Additionally, it was found that the genetic and morphological divergence between <em>C. rionegrensis</em> and <em>C. bergi</em> is considerably low; even below the interspecific values for the Mendocinus group. The genetic divergence between the two species could be related to the Paraná River, the second largest river in South America. The results of this study may have a significant impact on the conservation status assessment of the taxa under study, as they considerably expand the distribution range of the synonymized species.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 130-138"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Description of a new species of Paraturbanella, new record of Paraturbanella tricaudata and new insights on reproductive traits in Turbanellidae (Gastrotricha:Macrodasyida) 拟蝶属一新种描述、三尾拟蝶属新记录及拟蝶科生殖性状新认识（腹虫目：大腹虫目）

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-07-01 Epub Date: 2025-05-30 DOI: 10.1016/j.jcz.2025.05.010

Ariane Campos , Thiago Quintão Araújo , M. Antonio Todaro , André Rinaldo Senna Garraffoni

{"title":"Description of a new species of Paraturbanella, new record of Paraturbanella tricaudata and new insights on reproductive traits in Turbanellidae (Gastrotricha:Macrodasyida)","authors":"Ariane Campos , Thiago Quintão Araújo , M. Antonio Todaro , André Rinaldo Senna Garraffoni","doi":"10.1016/j.jcz.2025.05.010","DOIUrl":"10.1016/j.jcz.2025.05.010","url":null,"abstract":"<div><div>The intertidal zone of a sandy beach in Bahia State, Brazil, yielded a new species that we describe herein based on three distinct microscopy techniques (light, scanning electronic, and confocal), as well as on nuclear and mitochondrial molecular data (18S rDNA, 28S rDNA, and COI mtDNA). Specimens of <em>Paraturbanella anastaciae</em> species nova (sp. nov.) bear piston pits, a single caudal cone, and lateral and posterior adhesive tubes arranged in clusters; moreover, the layout of its male reproductive system appears unique. A comparative table with data on the reproductive traits of <em>Paraturbanella</em> species known to date was produced to aid future research. Additionally, we report <em>Paraturbanella tricaudata</em> Campos, Todaro and Garraffoni, 2020 from the state of São Paulo, outside its type locality in Rio de Janeiro State. A multigene approach was used to develop a molecular phylogeny of the family Turbanellidae, which found the genera <em>Turbanella</em> and <em>Paraturbanella</em> to be monophyletic and <em>P</em>. <em>anastaciae</em> sp. nov. clearly distinct from other congeners. Although this is the second species of <em>Paraturbanella</em> described from Brazil, evidence indicate that the knowledge of Neotropical turbanellids biodiversity still needs to be completed.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 46-59"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144270404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Three-dimensional (3D) photogrammetric-based geometric morphometric analysis of the skull in the social vole (Cricetidae: Microtus) 基于三维摄影测量的群居田鼠（田鼠科）颅骨几何形态测量学分析

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-07-01 Epub Date: 2025-05-11 DOI: 10.1016/j.jcz.2025.05.006

Ahmet Yesari Selçuk , Alaettin Kaya , Haluk Kefelioğlu

{"title":"Three-dimensional (3D) photogrammetric-based geometric morphometric analysis of the skull in the social vole (Cricetidae: Microtus)","authors":"Ahmet Yesari Selçuk , Alaettin Kaya , Haluk Kefelioğlu","doi":"10.1016/j.jcz.2025.05.006","DOIUrl":"10.1016/j.jcz.2025.05.006","url":null,"abstract":"<div><div>Geometric morphometric analysis has significantly advanced the study of size and shape variation of the mammalian skull. In this study, we used photogrammetry to build three-dimensional models of <em>Microtus</em> skulls to investigate the shape variation of five species using the geometric morphometric approach. We hypothesized that three-dimensional (3D) skull shape data would accurately discriminate between closely related species. Canonical analysis of variance revealed a similar level of species classification based on both 2D and 3D shape data. These findings indicate the precision and accuracy of the photogrammetric method (3D geometric morphometric) in morphologically similar and taxonomically problematic groups, such as <em>Microtus</em>. In species with similar diploid chromosome numbers (<em>Microtus guentheri</em>-<em>M. hartingi</em> and <em>Microtus anatolicus</em>-<em>M. schidlovskii</em>) and in groups in which linear morphometric analyses (Discriminant function analysis and MANOVA) could not distinguish between species (<em>Microtus dogramacii</em>, <em>Microtus schidlovskii</em>, and <em>M. guentheri</em>), the photogrammetry-based 3D GM analyses showed a high level of correct classification rates, demonstrated differences between groups in the cluster dendrogram, and showed significant differences in the shape of the skulls.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 19-32"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A saucerful of secrets: comparative osteology of the genus Copeoglossum Tschudi, 1845 (Squamata: Scincidae) reveals a new species from Central Brazil 一碟秘密：1845年Copeoglossum Tschudi属的比较骨学（鳞片目：鳞片科）揭示了来自巴西中部的一个新种

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-07-01 Epub Date: 2025-06-16 DOI: 10.1016/j.jcz.2025.05.008

Julio C. Ferreira-Junior , Davor Vrcibradic , Vinícius Sudré , Paulo Passos

{"title":"A saucerful of secrets: comparative osteology of the genus Copeoglossum Tschudi, 1845 (Squamata: Scincidae) reveals a new species from Central Brazil","authors":"Julio C. Ferreira-Junior , Davor Vrcibradic , Vinícius Sudré , Paulo Passos","doi":"10.1016/j.jcz.2025.05.008","DOIUrl":"10.1016/j.jcz.2025.05.008","url":null,"abstract":"<div><div>The genus <em>Copeoglossum</em> is widely distributed throughout much of the Amazon basin and other regions of central, northern, and eastern South America, including Brazil, Bolivia, Colombia, Ecuador, Peru, Venezuela, Guyana, French Guiana, and Suriname. It also occurs in the Lesser Antilles (Redonda, St. Vincent, the Grenadines, Grenada, Trinidad and Tobago). Despite the recent increase in molecular and taxonomic studies on Neotropical skinks, populations of <em>Copeoglossum</em> in northern and eastern South America remain understudied. Here, we examined 380 specimens from 64 localities, representing all currently recognized taxa of the genus <em>Copeoglossum</em>. Specimen preparation included dry skull, clearing and staining, X-ray, and high-resolution computed tomography (μCT). This study provides a detailed anatomical reference for the adult skull of species in the genus <em>Copeoglossum</em>, emphasizing osteological features that may aid in delineating robust species boundaries. Our findings support the recognition of a distinct lineage that does not currently have a formal name (though it has been previously identified in other studies), which we describe herein as a new species based on both cranial osteology and external morphology, as well as molecular evidence. This newly recognized species appears to be endemic to the Cerrado ecoregion, also occurring in transitional areas of Brazil's central-western region.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 91-115"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144338866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0