Invertebrate Systematics publishes significant contributions and reviews on the systematics, phylogeny and biogeography of all invertebrate taxa. Read more about the journalMore
Editor-in-Chief: Gonzalo Giribet
Publishing Model: Hybrid. Open Access options available.
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, Dimitar Dimitrov , Renner L. C. Baptista, Nikolaj Scharff and Volker W. Framenau
The molecular phylogeny of the gum nut orb-weaving spider genus Carepalxis was investigated, revealing a polyphyletic Carepalxis: its Australasian representatives were part of the informal clade ‘backobourkiines’, and the Neotropical species were related to the genus Ocrepeira. A revised Carepalxis, recognised by the presence of two cephalic humps in females and two enlarged tibial spines in males, is composed of seven endemic Australian species, including four new species described here, and C. beelzebub, which also occurs in New Guinea. (Photography by Pedro Castanheira.)
IS25009 Abstract | IS25009 Full Text | IS25009PDF (20.2 MB) | IS25009Supplementary Material (2.6 MB) Open Access Article
An integrative taxonomic approach, including morphological and molecular data, revealed three new cryptic species: Schistodesmus luqiaoensis, Schistodesmus tongpenensis, and Schistodesmus xinyuensis. Maternal mitochondrial genomes of the first two species and Schistodesmus lampreyanus were sequenced, and interspecific relationships elucidated based on mitochondrial phylogenomics. Molecular clock analysis and biogeographical reconstruction based on fossil-calibrated dating indicated that the ancestor of Schistodesmus originated in the paleo-Yangtze River Basin during the Eocene (c. 50.74 Ma) and began diversifying c. 18.68 Ma in the Neogene. (Photography by Kaiyu Hou.)
, Philippe Bouchet , Aart Dekkers, Sandro Gori, Shih-I Huang, Yuri Kantor , Thomas Lemarcis, Maxwell Marrow, Claudia Ratti, Gary Rosenberg, Richard Salisbury, Sofia Zvonareva and Nicolas Puillandre
The family Costellariidae is a charismatic, species-rich, yet poorly studied group of marine gastropod molluscs. Recent analyses of DNA sequences and shell features have failed to embrace the complexity of the group. Here, we analyse the morphology, DNA barcodes and genomic data from over 200 species, with emphasis on the South Pacific and Caribbean faunae, describing 9 new genera and 23 new species. Our results update the phylogeny and systematics of Costellariidae, corroborating patterns of species diversity in tropical seas. (Image credit: Alexander Fedosov.)
, Pierre Feutry, Coline Bernard , Gérard Marquet, Philippe Keith and Magalie Castelin
We apply rigorous taxonomic and phylogenetic frameworks to shed light on both the taxonomy and evolution of amphidromous freshwater shrimps. Automatic species delineation methods based on molecular data revealed the existence of several species complexes within Macrobrachium. Results suggest habitat-driven speciation modes, where species differentiate in similar habitats distributed across the Indo-Pacific. The morphology of amphidromous Macrobrachium reflects numerous conserved adaptations to flow velocity. (Image credit: Valentin de Mazancourt.)
, Valentina Tanduo, Salvatore D’Aniello, Angelo Fontana, Xavier Turon and Fabio Crocetta
Heterostigma is a poorly known genus of pyurid ascidian, deemed to inhabit the interstitial space between coarse sand grains. A new species, Heterostigma monniotae, is described, updating the taxonomy of the genus and clarifying its phylogenetic position through analyses of single loci and complete mitochondrial genome. In addition, observations on live specimens revealed an ontogenetic shift in mature specimens from a sessile to a motile phenotype. These new findings shed light on the evolutionary implications of this adaptive strategy. (Image credit: R. Virgili.)
, Henrik Enghoff, Natdanai Likhitrakarn, Somsak Panha and Chirasak Sutcharit
Dragon millipedes recently collected in southern Thailand exhibited a unique morphological trait: alternating long and short legs on each diplosegment (heteropody), a feature previously unseen in the family Paradoxosomatidae. Phylogenetic analyses using morphology and genetic data strongly support the monophyly of all dragon millipede genera. The new specimens form a distinctly separate clade for which we establish a new monotypic genus, Alternaxytes, characterised by unique gonopodal features and heteropodous legs, which are an example of convergent evolution within millipedes. (Photographs and image credit: Ruttapon Srisonchai.)
, Alexander Kieneke, Maria Balsamo, Loretta Guidi and André R. S. Garraffoni
The knowledge about Gastrotricha in Brazilian territory is still far from complete. In our work we describe a new species and new genus distributed across a wide latitudinal range. The genus is characterised by a novel cephalic cuticular ornamentation, called leafed scale, and supported by molecular phylogeny. In our work we reinforce the importance of using methods of integrative taxonomy for uncovering gastrotrich diversity. (Image credit: Axell Minowa.)
A new species of violin spider, Loxosceles galianoa, sp. nov. is described from north-western Argentina as a member of the laeta group. A survey of the diversity of the female genitalia in Loxosceles, combined with a phylogeny of its species groups, suggests that the female genitalia is more diverse than that of males in this genus. It is hypothesised that the medically significant Loxosceles laeta likely originated in Peru, not Chile. (Photograph by I. L. F. Magalhaes.)
, Lukasz Gajda, Dominika Ras and Piotr Swiatek
Integrating DNA barcoding with a comprehensive taxonomic revision, this study confirms the widespread presence of Limnatis nilotica and unveils a second, previously unrecognised species of Limnatis in North Africa. These findings enhance our understanding of the diversity and biogeography of Tunisian nasal leeches, offering significant contributions to regional biodiversity and systematics. (Image credit: Raja Ben Ahmed.)
IS24038_CO Full Text | IS24038_COPDF (657 KB) Open Access Article
, Dorota Lachowska-Cierlik , Pierre Boyer , André Victor Lucci Freitas , Klaudia Florczyk , Christer Fahraeus , José Cerdeña, Ezequiel Osvaldo Núñez-Bustos and Marianne Espeland
The infra tribe Neosatyriti is the most diverse butterfly group in South America's temperate rainforests and grasslands, with 57 species from Patagonia to northern Peru, up to 5000 m above sea level. Their systematics and evolutionary history remain unclear. We confirm a common ancestor and trace their spread across the continent using molecular, morphological and ecological data. They diversified in Chile (c. 12–11 Ma), reached Brazil (c. 6–5 Ma), and the Andes and Patagonia (c. 3 Ma), coinciding with temperate grassland evolution. (Photographs by P. Boyer and T. W. Pyrcz.)
IS24038 Abstract | IS24038 Full Text | IS24038PDF (15.2 MB) | IS24038Corrigendum (657 KB) | IS24038Supplementary Material (388 KB) Open Access Article
, Lili Liu , Liping Zhang, Arthur E. Bogan , Dandong Jin, Xiongjun Liu and Xiaoping Wu
Freshwater mussels of the family Unionidae are a diverse and ecologically significant group in aquatic ecosystems. We sequenced the maternal mitochondrial genomes of eight putative species of the East Asian endemic subtribe Cristariina and, by integrating molecular data and morphological characteristics, described a new genus and species, Acudonta baitiaoensis, and one newly recorded species for China (Cristaria truncata). Integrative taxonomy revealed three new synonyms of Anemina arcaeformis and using mitochondrial phylogenomics we clarified the intergeneric relationships within the subtribe. (Image credit: Lili Liu.)
and Anders Hallan
The conoidean family Raphitomidae is arguably among the most diverse deep-sea gastropod groups. We studied recently collected deep-water raphitomids from south-eastern Australia, generated combined genetic, shell, anatomy and distribution data, described three new species, and revised eight more across several raphitomid genera. Our results contribute to the understanding of the global distributional patterns of deep-sea raphitomid species, ranging from the very rare and possibly endemic to those exhibiting transoceanic ranges or occupying remarkably wide depth intervals. (Image credit: Francesco Criscione.)
, Joachim Langeneck, Maël Grosse , Pedro E. Vieira, José Carlos Hernández, Bruno R. Sampieri, Panagiotis Kasapidis , Torkild Bakken , Susana Carvalho, Ascensão Ravara , Arne Nygren and Filipe O. Costa
Annelids are increasingly being found to comprise a substantial fraction of cryptic biodiversity. Perinereis cultrifera is commonly used as a model species, but the possibility of unreported and undescribed cryptic species may compromise the accuracy and interpretation of results. In this study, integrative taxonomy revealed overlooked morphological traits and 18 different European Perinereis lineages (13 of which are formally described) yielding new molecular and taxonomic data available to a range of efforts including metabarcoding, species identification, conservation and biomonitoring. (Image credit: Joachim Langeneck.)
, Mark Harvey , Ligia Benavides , Sebastian Cuadrado-Rios and Carlos Sarmiento
, Peter Cowman, Andrew Baird, Augustine Crosbie, Andrea Quattrini, Victor Bonito, Frederic Sinniger, Saki Harii, Patrick Cabaitan, Nur Fadli, Chun-Hong Tan, Julia Hung , Teina Rongo, Danwei Huang, Tuikolongahau Halafihi and
Tom Bridge
, Dorota Lachowska-Cierlik , Pierre Boyer , André Victor Lucci Freitas , Klaudia Florczyk , Christer Fahraeus , José Cerdeña, Ezequiel Osvaldo Núñez-Bustos, Marianne Espeland
, Rolf G. Oberprieler
, Gerasimos Cassis
, Jennifer Chaplin, Angus D’Arcy Lawrie, Mahabubur Rahman, Adrian Pinder
, A. Louise Allcock, Andrea M. Quattrini
, Pierre Feutry, Coline Bernard , Gérard Marquet, Philippe Keith , Magalie Castelin
, Alexander Kieneke, Maria Balsamo, Loretta Guidi, André R. S. Garraffoni
, Valentina Tanduo, Salvatore D’Aniello, Angelo Fontana, Xavier Turon, Fabio Crocetta
, Philippe Bouchet , Aart Dekkers, Sandro Gori, Shih-I Huang, Yuri Kantor , Thomas Lemarcis, Maxwell Marrow, Claudia Ratti, Gary Rosenberg, Richard Salisbury, Sofia Zvonareva, Nicolas Puillandre
, Dimitar Dimitrov , Renner L. C. Baptista, Nikolaj Scharff, Volker W. Framenau
, Henrik Enghoff, Natdanai Likhitrakarn, Somsak Panha, Chirasak Sutcharit
, Rubén Castañeda-Osorio , Jovana M. Jasso-Martínez , Angélica M. Penteado-Dias , Sian S. Gadelha , Seán G. Brady , Donald L. J. Quicke , Robert R. Kula, Alejandro Zaldívar-Riverón
, Lili Liu , Liping Zhang, Arthur E. Bogan , Dandong Jin, Xiongjun Liu, Xiaoping Wu
, Lorena Zapata, Eduardo M. Soto, Charles R. Haddad, Cristian Grismado, Matías Izquierdo , Elizabeth Arias, Jaime Pizarro-Araya, Raúl Briones, Juan Enrique Barriga, Luciano Peralta , Martín J. Ramírez
, Ricardo Pinto-da-Rocha
, Joachim Langeneck, Maël Grosse , Pedro E. Vieira, José Carlos Hernández, Bruno R. Sampieri, Panagiotis Kasapidis , Torkild Bakken , Susana Carvalho, Ascensão Ravara , Arne Nygren, Filipe O. Costa
, Atilano Contreras-Ramos
Myriapoda and Onychophora constitute two clades of mostly soil-dwelling multi-legged panarthropods, once thought to form the clade Uniramia, but now genomic evidence strongly suggest that Onychophora is the sister group of Arthropoda, where myriapods are nested. The articles compiled in this Collection include several examples of the integrative work we publish in our journal, and we welcome further submissions of your best work on myriapods and onychophorans.
Last Updated: 19 Jun 2017
Invertebrate Systematics has focused on the publication of primary research and review articles on all aspects related to systematics of invertebrates, including taxonomic papers with a focus on evolution and ecology. To celebrate 30 years of publication of Invertebrate Systematics, this Collection contains some of our most highly cited papers.
Last Updated: 14 Dec 2016
In this Collection, we present articles covering a diversity of taxa (Bivalvia, Cephalopoda, Gastropoda, Polyplacophora) and approaches (molecular, morphological – including morphometrics – and total evidence) to better understand molluscan diversification at different time-scales. These articles encompass research and species found globally, highlighting both the interdisciplinary and collaborative nature of the science published in Invertebrate Systematics.
Last Updated: 30 Jun 2016
Invertebrate Systematics has published many significant studies of the Decapoda, of which 12 are showcased in this Collection. Launched to coincide with the 8th International Crustacean Congress in Frankfurt, Germany (18-23 August 2014), this Collection spans molecular and morphological phylogenetic and revisionary taxonomic studies of crabs, crayfish, freshwater and marine shrimps.
Last Updated: 08 Aug 2014
Invertebrate Systematics has published many important studies on hymenopterans, 14 of which are showcased in this Collection. Launched to coincide with the 8th International Congress of Hymenopterists in Cusco, Peru (20-25 July 2014), this significant collection comprises molecular and morphological phylogenetic and taxonomic studies on a wide range of families.
Last Updated: 01 Jul 2014
This Collection, launched to coincide with the 19th International Congress of Arachnology in Taiwan in June 2013, comprises 12 important studies on arachnids from Invertebrate Systematics. Together, the publications in this Collection reveal key aspects of the systematics, biology and biogeography of these invertebrate animals.
Last Updated: 01 Jun 2013
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