Zoological Journal of the Linnean Society最新文献

{"title":"Taxonomic revision of Chilean Liogenys (Coleoptera: Melolonthidae) and molecular assessment of a species complex","authors":"Mariana A Cherman, Daniel S Basílio, Bruno Clarkson, José Mondaca, Aleš Bezděk, Andrew B T Smith, Lúcia M Almeida","doi":"10.1093/zoolinnean/zlae147","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae147","url":null,"abstract":"Liogenys is a neotropical genus widely distributed in South America and characterized by rhizophagous feeding habits. Taxonomy survey of Liogenys from Chile revealed a species complex consisting of L. palpalis, L. obesula and an undescribed morphotype. Morphological data alone are not sufficient to distinguish between them. The three-species hypothesis was tested using phylogenetic and preliminary phylogeographic analyses, as well as unilocus delimitation methods using mitochondrial (COI) and nuclear (ITS2) markers. The tree-based PTP method based on ITS2 considers both L. obesula and the undescribed morphotype to be variants of L. palpalis, a single, polymorphic species. Haplotypes from 12 localities along central Chile revealed four genetically structured populations, with statistical variance (54.34%) only within them. Isolated populations occur in Southern Santiagan Region and coastal desert. There are eight species of Liogenys in Chile. Diagnoses are provided for five species. Liogenys elguetai sp. nov. is described. Five synonyms are proposed for three species. Liogenys pubisternis, a new synonym of L. palpalis, is transferred from Diplotaxis. Lectotypes are provided for four names (L. castaneus, L. grandis, L. pubisternis, and Melolontha palpalis). Liogenys boliviensis is recorded for the first time from Chile and Peru, extending the distribution of Liogenys to northernmost Chile.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"14 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142935120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inside out Monoplacophora: revisiting Neopilina galatheae Lemche, 1957 using µCT scanning","authors":"Andre Ampuero, Julia D Sigwart","doi":"10.1093/zoolinnean/zlae168","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae168","url":null,"abstract":"Neopilina galatheae Lemche, 1957, first collected in the 1950s, was presented as a critical species for understanding animal evolution, particularly in the context of segmentation. Decades later, we have now revisited this iconic species using a newly collected specimen and modern micro-computed tomography (µCT). A comprehensive 3D digital model of the internal anatomy of N. galatheae revealed new complexities within the musculature, digestive, excretory, and reproductive structures, as well as insights to its feeding ecology. Although developmental data for monoplacophorans are still lacking, it has long been clear that the repeated anatomical elements of Neopilina are not true metamerism. Our new results show that the seventh muscle pair is an asymmetrical double muscle bundle, and there are independent pairs of kidneys without interconnections. Monoplacophorans remain a critical and contentious group for the phylogeny of conchiferan molluscs, though recent phylogenomic studies have shown consistency with traditional morphological hypotheses. Understanding body plan evolution in molluscs requires robust anatomical descriptions that can be compared among classes and between living and fossil species. Neopilina galatheae remains the iconic, textbook monoplacophoran; revisiting classic species with modern technology can challenge established views and contribute new perspectives on evolutionary processes.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"08 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142935119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Will the real invasive snail please stand up? A phylogenetic reconsideration of Paralaoma servilis (Shuttleworth, 1852) (Gastropoda: Stylommatophora: Punctidae)","authors":"Jeffrey C Nekola, Fred J Brook, Junn Kitt Foon, Veronika Horsáková, Yasuto Ishii, Frank Köhler, Eva Líznarová, Markéta Nováková, Takumi Saito, Rodrigo B Salvador, Michal Horsák","doi":"10.1093/zoolinnean/zlae142","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae142","url":null,"abstract":"We reconsider the biodiversity and biogeography of Paralaoma servilis—believed to be one of the most globally invasive exotic land snails—through integrative empirical revision. Phylogenies obtained from nDNA (ELAV, ddRAD genomics) and mtDNA (COI) demonstrate that the current classification is in error, with there being at least five distinct species within P. servilis s.l. The P. servilis group as interpreted here thus includes: P. servilis, inferred to be native to south-western Pacific Rim with an adventive distribution minimally spanning North America, Europe, and the Macaronesian islands of the eastern Atlantic Ocean; P. amblygona (Reinhardt, 1877), native to Honshu, Japan; P. borealis (Pilsbry and Y. Hirase, 1905), native to Hokkaido, Japan along the Pacific Rim to the SW North American mountains; P. caputspinulae (Reeve, 1852), native to New Zealand and Lord Howe Island; and P. morti (J.C. Cox, 1864), native to south-eastern Australia. Within P. servilis, invasiveness appears limited to a single clade that may have arisen along the California coast. The work presented here is a reminder that taxonomic concepts that have not been subjected to empirical vetting can generate poor biodiversity perspectives and non-optimal conservation strategies when native species are treated as exotics.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"43 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142917753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrative taxonomy of new neritimorph limpets from Indian Ocean deep-sea hot vents shed light on their biogeographic history","authors":"Xinyu Gu, Chong Chen, Kexin Gao, Yadong Zhou, Jin Sun","doi":"10.1093/zoolinnean/zlae167","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae167","url":null,"abstract":"Red-blooded neritimorph gastropods in the subfamily Shinkailepadinae are specialists of chemosynthesis-based ecosystems, with the most diverse genus Shinkailepas endemic to deep-sea hydrothermal vents. All described Shinkailepas species have so far been from the western Pacific, despite reports of unidentified Shinkailepas from the Indian Ocean in the literature for decades. Here, we use an integrative approach to characterize and describe these Indian Ocean vent neritimorphs for the first time, based on material collected from the Carlsberg Ridge (CR) and the Central Indian Ridge (CIR). We name two new species: Shinkailepas tiarasimia sp. nov. from both the CR and the CIR, and Shinkailepas cornuthauma sp. nov. from the CR. A combination of shell and epipodial lobe characters reliably separate these new species from their described congeners. A phylogenetic reconstruction of all known Shinkailepas species using 658 bp of the mitochondrial COI gene reveal two separate major clades within the genus, each with an Indian Ocean species—implying two independent colonizations of Indian Ocean vents by separate lineages. Our finding of two new species on the CR, including one not known anywhere else, underscores the unique biodiversity at these vents and strengthens the case for protecting them from potential deep-sea mining activities.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"20 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142917754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nomenclatural addendum to ‘The systematics and nomenclature of the Dodo and the Solitaire (Aves: Columbidae), and an overview of columbid family-group nomina’","authors":"Mark T Young, Steven M S Gregory, Edward C Dickinson, Julian P Hume, Michael O Day, Robert P Douglas, Zoë M Simmons, Judith White, Markus O Heller, Neil J Gostling","doi":"10.1093/zoolinnean/zlae157","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae157","url":null,"abstract":"Columbidae (the pigeon and dove family) are a speciose clade of non-passerine birds with a near global distribution. Recently, Young et al. (2024) undertook an evaluation of the systematics and nomenclature of the Dodo and its sister species the Rodrigues Solitaire. Therein, they also investigated the validity of columbid family-group names. Since publication, we have been made aware of corrections to that survey of columbid family-group names. As such, this erratum is a nomenclatural addendum to Young et al. (2024) and should be consulted alongside the original publication.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"96 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Population divergence in co-distributed Caribbean landfrogs (Eleutherodactylidae: Eleutherodactylus) along the Soufrière volcanic slope of Guadeloupe Island, Lesser Antilles","authors":"Edward A Myers, Luigie Alequín, Ayanna Browne, Kevin P Mulder, Danielle Rivera, Lauren A Esposito, Rayna C Bell, S Blair Hedges","doi":"10.1093/zoolinnean/zlae128","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae128","url":null,"abstract":"Local adaptation to environmental heterogeneity across a landscape can result in population divergence and formation of lineages. On Guadeloupe Island, the active volcano, La Grande Soufrière, peaks at 1460 m a.s.l., with rainforest at low elevations transitioning to humid savannahs at high elevations. Two endemic sister species of Eleutherodactylus frogs are co-distributed across this habitat gradient, and previous studies have reported phenotypic differences between lowland and high-elevation populations in each species, in addition to potential ongoing hybridization between the species at high-elevation sites. Here we generate mitochondrial DNA and nuclear DNA genomic data along the elevational transect to quantify population genetic structure, provide historical context for the diversification of these island endemics, and identify potential bottlenecks attributable to the eruptive history of the volcano. We find that both taxa exhibit population clusters that correspond to low- and high-elevation localities; however, genetic divergence is not associated with climate variables or geographical distance. The timing of divergence between the species is estimated at ~3.75 Mya; demographic models indicate low levels of migration between the species after divergence, and we find that ongoing hybridization is likely to be limited. Finally, we find moderate heterozygosity across populations, suggesting that they were minimally impacted by recent volcanic activity. A version of this abstract translated to French can be found in the Supplementary Data. Une version de ce résumé traduite en français est disponible dans les Données Supplémentaires.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"53 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142869959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New insights into the origin and phylogeny of Niphargidae (Crustacea: Amphipoda), with description of a new species and synonymization of the genus Niphargellus with Niphargus","authors":"Fabio Stoch, Jacques Citoleux, Dieter Weber, Alice Salussolia, Jean-François Flot","doi":"10.1093/zoolinnean/zlae154","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae154","url":null,"abstract":"The intriguing origin and distribution of subterranean amphipods of the family Niphargidae, particularly in north-western Europe and the British Isles, were heavily influenced by Pleistocene glaciations, which obscured most ancient events. The discovery of a new species in Brittany (described herein as Niphargus quimperensis sp. nov.) that is closely related to two tiny endemic species of the British Isles (one ascribed to the genus Niphargus and the other to Niphargellus), along with further collection of specimens of Niphargellus in Europe, allowed the construction of a comprehensive molecular phylogeny and a new time-calibrated tree of the family Niphargidae. The discovery of Niphargus quimperensis sp. nov. confirmed the position of its clade as sister to all other niphargids. Moreover, phylogenetic analysis demonstrate that the genus Niphargellus is polyphyletic and must be treated as a junior synonym of Niphargus. Finally, we propose that the colonization of continental freshwater by the marine ancestors of Niphargus may have occurred in north-western Europe during the opening of the North Atlantic in the Late Cretaceous, whereas the split of Niphargus quimperensis sp. nov. from the other representatives of its clade may have been related to the isolation of Brittany from the British Isles in the Early Miocene.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"24 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142869957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Osteology, relationship, and feeding ecology of the theropod dinosaur Noasaurus leali, from the Late Cretaceous of North-Western Argentina","authors":"Christophe Hendrickx, Mauricio A Cerroni, Federico L Agnolín, Santiago Catalano, Cátia F Ribeiro, Rafael Delcourt","doi":"10.1093/zoolinnean/zlae150","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae150","url":null,"abstract":"Noasaurus leali is a small (~2 m) carnivorous theropod and the nominal genus of the clade Noasauridae, one of the two radiations of abelisauroid ceratosaurs predominantly present in the Southern Hemisphere during the Mesozoic. This eponymous theropod from the Maastrichtian Lecho Formation of Salta, Argentina, is known from an incomplete skeleton of which the strongly curved manual ungual is the most peculiar element. We here provide for the first time a comprehensive description of the holotypic specimens of Noasaurus, whose phylogenetic position was explored using three independent datamatrices on theropod relationships. This species is diagnosed by several apomorphies such as a dorsal ridge in the maxillary fossa, a strongly arched quadrate, a cervical neural arch with anterior epipophyseal prongs, and a manual ungual with a subtriangular flexor fossa delimited by a V-shaped ridge. Results of the phylogenetic analyses recovered Noasaurus closely related to Velocisaurus, Masiakasaurus, and Laevisuchus, which together form a Late Cretaceous radiation of small-bodied noasaurids restricted to the Southern Hemisphere. The peculiar morphology of the lateral dentition and manual unguals suggests that Noasaurus was an opportunistic carnivore feeding on small prey items and a possible piscivore gaffing fish with its specialized hand claws.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"10 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Too rough to be a Hypsibius: multipopulation survey accentuates the phylogenetic position and apomorphies of Hypsibius scabropygus (Eutardigrada: Hypsibiidae)","authors":"Piotr Gąsiorek, Martin V Sørensen, Marie Rathcke Lillemark, Frederik Leerhøi, Anders P Tøttrup","doi":"10.1093/zoolinnean/zlae160","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae160","url":null,"abstract":"Tardigrade taxonomy is undergoing a turbulent phase of reclassifying various species that have previously been gathered within large wastebasket genera, such as Diphascon or Hypsibius. The application of genetic sequencing, paired with detailed analysis of fine morphological features in 3D using scanning electron microscopy, allow for revealing new phenotypic characters used in systematics. At the same time, resampling of previously well-sampled regions, such as the Western Palaearctic, delivers fresh and precious data. In this paper, the second from a series of publications integratively addressing the tardigrade fauna of Denmark, we focus on Hypsibius scabropygus and related species, which appeared to be common and abundant in cryptogam samples. As previously suggested by scarce molecular and morphological evidence, Hypsibius scabropygus is considerably different from other representatives of the genus Hypsibius by the presence of ramazzottiid characters. These include Ramazzottius-like claws with thinned, and thus more flexible, primary branches of external/posterior claws, apophyses for the insertion of the stylet muscles asymmetrical with respect to the frontal plane, rudimentary elliptical sensory organs, buccal tube slightly bent in posterior portion, and, finally, eggs with distinct chorion granulation laid in exuviae (known for some hypsibiids and acutuncids), and not smooth, which is otherwise typical for most hypsibiids. Consequently, the group of Hypsibius species with two small granular macroplacoids in the pharynx and pronounced cuticular sculpturing in the form of dorsoposterior protuberances or whole-dorsal tubercles is erected as Parahypsibius gen. nov. New DNA barcodes strongly support the monophyly of Hypsibiidae and recent changes in the classification of Pilatobiinae. We argue that some still poorly resolved nodes in the hypsibiid tree are the result of incomplete representation of particularly uncommon evolutionary lineages. Our abundant cryptogam samples from across Denmark demonstrate the value of involving local communities and utilizing citizen science in biodiversity monitoring and documentation.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"4 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biomechanics of venom delivery in South America’s first toxungen-spraying scorpion","authors":"Léo Laborieux","doi":"10.1093/zoolinnean/zlae161","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae161","url":null,"abstract":"Venom is a metabolically expensive secretion used sparingly in a variety of ecological contexts, most notably predation and defence. Accordingly, few animals employ their toxins from a distance, and venom-squirting behaviour is only known from select taxa. In scorpions, species belonging to two genera are known to spray venom when threatened, and previous work in Parabuthus transvaalicus shows that venom delivery depends on perceived levels of threat. Here, I describe Tityus (Tityus) achilles sp. nov., a new species of buthid scorpion from Cundinamarca, Colombia. Remarkably, this species is capable of venom spraying, a first for both the genus and the South American continent. Using frame-by-frame video analysis and ballistic equations, I show that T. (Tityus) achilles sp. nov. employs not one, but two types of airborne defences with dramatic differences in reach and venom expenditure. Further, the new species uses an unusually large reserve of prevenom-like secretion for spraying, as opposed to the costly venom used by other spraying scorpions. In light of these key specializations, I propose that toxungen spraying convergently evolved in response to different selection pressures, laying the groundwork for future investigation.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"24 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}