Volume 32 Number 1 2018
Until the 1980s ‘cosmopolitan’ species were considered common among polychaetes. We examine how this idea originated and argue that while wide distributions are possible in the deep sea and as a result of bioinvasions, they are rare. We suggest the measures needed to revolve the status of reportedly cosmopolitan species and stress the value of museum vouchers associated with DNA sequences.
IS16071Taxonomic revision and insights into the speciation mode of the spider Dysdera erythrina species-complex (Araneae : Dysderidae): sibling species with sympatric distributions
Sibling species provide insights into the mechanisms involved in speciation. Here, we integrate information from morphology and molecular and chromosome markers to discover and delimit twenty sibling species within the woodlouse hunter spider Dysdera erythrina complex. Our results suggest that the combination of rapid chromosome differentiation and the dietary specialisation stands behind the origin of this remarkable, and so far mostly overlooked, diversity.
IS17028Molecular phylogeny of branchiobdellidans (Annelida : Clitellata) and their host–epibiont association with Austropotamobius freshwater crayfish
Branchiobdellidans are ectosymbiotic annelids associated with freshwater crayfish. Here, we inferred, using mtDNA COI sequences, the phylogenetic relationships of branchiobdellidans from the genus Branchiobdella living on the Austropotamobius crayfish, from Dinaric and Alpine regions of Europe. High intraspecific p-distance values were observed, indicating the existence of cryptic taxa within genus Branchiobdella, while congruent phylogenetic patterns within Austropotamobius and branchiobdellidans indicate similar evolutionary histories and imply their coevolution. Photograph: Branchiobdella parasite, by G. Klobučar.
IS17003Exploring the diversity of Asian Cryptocercus (Blattodea : Cryptocercidae): species delimitation based on chromosome numbers, morphology and molecular analysis
This study is the first attempt to delimit Cryptocercus species on a large scale, including different species delimitation analysis methods. We aim to find the unrecognized diversity of Cryptocercus in the Hengduan Mountains, then we combined our data with biogeography to interpret the rich diversity of Cryptocercus in China. Our results have shed new light on the diversity of Cryptocercus.
IS17038Further polyphyly of pinnotheroid crabs: the molecular phylogenetic position of the polychaete-associated Aphanodactylidae
Pea crabs, Pinnotheroidea, being highly specialised to live symbiotically (obligate commensalism) with other marine invertebrates, were long thought to have a common ancestor. Our molecular analysis shows that the lineage symbiotic with medusa worms, Aphanodactylidae, evolved independently of other pea crabs and is more closely related to the free-living ghost and sentinel crabs. This indicates that obligate commensalism has evolved independently at least three times within the crabs.
IS17021The zoogeography of extant rhabdopleurid hemichordates (Pterobranchia : Graptolithina), with a new species from the Mediterranean Sea
Rhabdopleura is a colonial, tubicolous animal with a near half billion-year old fossil record. Here we use morphology and molecules to describe a fifth living species, named R. recondita, that inhabits dead bryozoan skeletons. The habitat of rhabdopleurids, the ability to form buds from cells protected inside of the tubes, and clonal reproduction may have contributed to Rhabdopleura’s longevity.
IS17022Systematics and biogeography of Spinoctenus, a new genus of wandering spider from Colombia (Ctenidae)
Ctenidae is well represented in the Neotropics by small to large wandering spiders that usually inhabit the ground of forests and understory vegetation. A new genus of Ctenidae, including eleven new species, is described and analyzed in a morphological phylogeny to test the monophyly of the genus and relationships with the remaining ctenid genera. In addition, we present a historical biogeographical analysis of this genus based on the phylogenetic relationships of the species.
IS17052Morphological and mitochondrial DNA data reshuffle the taxonomy of the genera Atopochetus Attems, Litostrophus Chamberlin and Tonkinbolus Verhoeff (Diplopoda: Spirobolida: Pachybolidae), with descriptions of nine new species
This paper reports on the very first mitochondrial DNA sequence analysis of SE Asian pachybolid millipedes. Combined with morphological data, these mtDNA sequences show that the well-known genus Tonkinbolus should be synonymized with the genus Litostrophus, while most former Tonkinbolus species should be transferrred to the re-instated genus Atopochetus. The data also uncover nine new species.
IS17040Systematics and phylogeography of the Australasian mangrove crabs Parasesarma semperi and P. longicristatum (Decapoda : Brachyura : Sesarmidae) based on morphological and molecular data
Molecular approach has improved taxonomic status of many complex taxa and addressed their phylogeographic structures. Aiming to evaluate taxonomic validity of the two sister Australasian mangroves species, our genetic analyses confirm the existence of two distinct phylogeographic lineages. The data indicate distinct separation between Australian clade and the Southeast Asian group.
IS17034Molecular phylogeny of the crab genus Metopograpsus H. Milne Edwards, 1853 (Decapoda : Brachyura : Grapsidae) reveals high intraspecific genetic variation and distinct evolutionarily significant units
The extant six species of Indo-Pacific crabs belonging to the genus Metopograpsus show high inter-population morphological variability and low interspecific differences. We performed a molecular investigation based on data coming from the whole distributional ranges of each species, aimed at clarifying their phylogenetic and taxonomic status. We recorded a high intra-specific genetic variation within two Metopograpsus species, suggesting the occurrence of new undescribed species.
IS17011Phylogenetic relationships and evolution of reproductive modes within flattened syllids (Annelida : Syllidae) with the description of a new genus and six new species
Syllids use a remarkable mode of reproduction with either one (scissiparity) or several (gemmiparity) stolons, with profound evolutionary and ecological implications. Our goal was to provide a solid phylogenetic backbone to assess the ancestral reproductive character of the group, which resulted in scissiparity as the ancestral and gemmiparity as the derived condition. The independent acquisition of gemmiparity by two different clades suggests this is an advantageous labile feature but without a clear phylogenetic signal.
The peer-reviewed and edited version of record published online as it becomes available
These articles have been peer reviewed and accepted for publication. They are still in production and have not been edited, so may differ from the final published form.
Revision of Tasmanian viviparous velvet worms (Onychophora: Peripatopsidae) with descriptions of two new species
Phylogeny of Hesionidae (Aciculata, Annelida), with five new species from deep-sea eastern Pacific methane seeps, and resolution of the affinity of Hesiolyra
Systematic revision and phylogenetic reassessment of the centipede genera Rhysida Wood, 1862 and Alluropus Silvestri, 1912 (Chilopoda: Scolopendromorpha) in Southeast Asia, with further discussion of the subfamily Otostigminae
Integrative systematics of clathrinid sponges: morphological, reproductive and phylogenetic characterization of a new species of Leucetta from Antarctica (Porifera, Calcarea, Calcinea) with notes on the occurrence of flagellated sperm
Trigonocephalotrema (Digenea: Haplosplanchnidae), a new genus for trematodes parasitising fishes of two Indo-West Pacific acanthurid genera.
Systematics and host plant associations of the Palassocoris complex (Insecta: Heteroptera: Miridae: Orthotylinae), a monophyletic suprageneric group of long-headed Australian Orthotylini, and the description of five new genera and ten new species
The Pleurobemini (Bivalvia: Unionida) revisited: molecular species delineation using a mitochondrial DNA gene reveals multiple conspecifics and undescribed species
Geographic patterns of phenotypic diversity in incipient species of North American blister beetles (Coleoptera: Meloidae) are not determined by species niches but driven by demography along the speciation process
Integrative taxonomy unravels the species diversity of Parachristianella Dollfus, 1946 (Cestoda: Trypanorhyncha) from both sides of the Panamanian isthmus
Integrative systematic revision of a Mediterranean earthworm family: Hormogastridae (Annelida, Oligochaeta)
Untangling Lepidocyrtus (Collembola, Entomobryidae): new molecular data shed light on the relationships of the European groups.
An integrative taxonomic approach reveals the first marine triclad (Platyhelminthes) trapped in a cave from a semi-arid Neotropical environment
On the genus Spirobranchus (Annelida, Polychaeta, Serpulidae) from the northern Red Sea, and a description of a new species
Instant taxonomy: Choosing adequate characters for species delimitation and description through congruence between molecular data and quantitative shape analysis
Genetic diversity of marine oligochaetous clitellates in selected areas of the South Atlantic as revealed by DNA barcoding
Morphological and molecular systematics of the “Monanchora arbuscula complex” (Poecilosclerida: Crambeidae), with the description of five new species and a biogeographic discussion of the genus in the Tropical Western Atlantic
Looking for morphological evidence of cryptic species in Asterina Nardo, 1834 (Echinodermata: Asteroidea). The redescription of Asterina pancerii (Gasco, 1870) and the description of two new species.
More limbs on the tree: Mitogenome characterization and systematic position of “living fossil” species Neoglyphea inopinata and Laurentaeglyphea neocaledonica (Decapoda: Glypheidea: Glypheidae)
Understanding subterranean variability: the first genus of Bathynellidae (Bathynellacea, Crustacea) from Western Australia described through a morphological and multigene approach
An expanded molecular phylogeny of metaine spiders (Araneae, Tetragnathidae) with descriptions of new metaine and leucaugine taxa from Taiwan and the Philippines.
Morphological phylogeny of the Australian genera of the bee fly subfamily Bombyliinae (Diptera: Bombyliidae) with description of four new genera
Unexpected species diversity within Japanese Mundochthonius pseudoscorpions (Pseudoscorpiones: Chthoniidae) and the necessity for improved species diagnosis revealed by molecular and morphological examination
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Invertebrate Systematics 31 (1)Christian R. Voolstra, GIGA Community of Scientists (COS), Gert Wörheide, Jose V. Lopez
Invertebrate Systematics 31 (6)Ivan L. F. Magalhaes, Martín J. Ramírez
Invertebrate Systematics 32 (1)Pat Hutchings, Elena Kupriyanova
Phylogenetic relationships and evolution of reproductive modes within flattened syllids (Annelida : Syllidae) with the description of a new genus and six new speciesInvertebrate Systematics 32 (1)Patricia Álvarez-Campos, Sergio Taboada, Guillermo San Martín, Carlos Leiva, Ana Riesgo
Further polyphyly of pinnotheroid crabs: the molecular phylogenetic position of the polychaete-associated AphanodactylidaeInvertebrate Systematics 32 (1)Ling Ming Tsang, Shane T. Ahyong, Hsi-Te Shih, Peter K. L. Ng
Taxonomic revision and insights into the speciation mode of the spider Dysdera erythrina species-complex (Araneae : Dysderidae): sibling species with sympatric distributionsInvertebrate Systematics 32 (1)Milan Řezáč, Miquel A. Arnedo, Vera Opatova, Jana Musilová, Veronika Řezáčová, Jiří Král
Morphological and mitochondrial DNA data reshuffle the taxonomy of the genera Atopochetus Attems, Litostrophus Chamberlin and Tonkinbolus Verhoeff (Diplopoda: Spirobolida: Pachybolidae), with descriptions of nine new speciesInvertebrate Systematics 32 (1)Piyatida Pimvichai, Henrik Enghoff, Somsak Panha, Thierry Backeljau
Systematics and biogeography of Spinoctenus, a new genus of wandering spider from Colombia (Ctenidae)Invertebrate Systematics 32 (1)Nicolas A. Hazzi, Daniele Polotow, Antonio D. Brescovit, Ranulfo González-Obando, Miguel Simó
The zoogeography of extant rhabdopleurid hemichordates (Pterobranchia : Graptolithina), with a new species from the Mediterranean SeaInvertebrate Systematics 32 (1)Elena Beli, Giorgio Aglieri, Francesca Strano, Davide Maggioni, Max J. Telford, Stefano Piraino, Christopher B. Cameron
Exploring the diversity of Asian Cryptocercus (Blattodea : Cryptocercidae): species delimitation based on chromosome numbers, morphology and molecular analysisInvertebrate Systematics 32 (1)Qikun Bai, Lili Wang, Zongqing Wang, Nathan Lo, Yanli Che
Molecular phylogeny of the crab genus Metopograpsus H. Milne Edwards, 1853 (Decapoda : Brachyura : Grapsidae) reveals high intraspecific genetic variation and distinct evolutionarily significant unitsInvertebrate Systematics 32 (1)S. Fratini, S. Cannicci, C. D. Schubart
Molecular phylogeny of branchiobdellidans (Annelida : Clitellata) and their host–epibiont association with Austropotamobius freshwater crayfishInvertebrate Systematics 32 (1)I. Šarić, G. Klobučar, M. Podnar, A. Štambuk, I. Maguire
A molecular phylogeny of the Palaearctic and Oriental members of the tribe Boarmiini (Lepidoptera : Geometridae : Ennominae)Invertebrate Systematics 31 (4)Nan Jiang, Xinxin Li, Axel Hausmann, Rui Cheng, Dayong Xue, Hongxiang Han
Where Fossils Dare and Males Matter: combined morphological and molecular analysis untangles the evolutionary history of the spider ant genus Leptomyrmex Mayr (Hymenoptera : Dolichoderinae)Invertebrate Systematics 31 (6)Phillip Barden, Brendon Boudinot, Andrea Lucky
A spectacular new genus of Staphylinini rove beetle from the tropical Andes and its phylogenetic assessment (Coleoptera : Staphylinidae)Invertebrate Systematics 31 (6)Josh Jenkins Shaw, Dagmara Żyła, Alexey Solodovnikov
Systematics and phylogeography of the Australasian mangrove crabs Parasesarma semperi and P. longicristatum (Decapoda : Brachyura : Sesarmidae) based on morphological and molecular dataInvertebrate Systematics 32 (1)Adnan Shahdadi, Peter J. F. Davie, Christoph D. Schubart
Species richness of jellyfishes (Scyphozoa : Discomedusae) in the Tropical Eastern Pacific: missed taxa, molecules, and morphology match in a biodiversity hotspotInvertebrate Systematics 31 (5)Liza Gómez Daglio, Michael N Dawson
Finding hot singles: matching males to females in dimorphic spiders (Araneidae: Micrathena) using phylogenetic placement and DNA barcodingInvertebrate Systematics 31 (1)Ivan L. F. Magalhaes, Pedro H. Martins, André A. Nogueira, Adalberto J. Santos
Astrocoryne cabela, gen. nov. et sp. nov. (Hydrozoa : Sphaerocorynidae), a new sponge-associated hydrozoanInvertebrate Systematics 31 (6)Davide Maggioni, Paolo Galli, Michael L. Berumen, Roberto Arrigoni, Davide Seveso, Simone Montano
The systematics and biogeography of the mite harvestman family Sironidae (Arachnida : Opiliones : Cyphophthalmi) with the description of five new speciesInvertebrate Systematics 31 (4)Gonzalo Giribet, Ligia R. Benavides, Izaskun Merino-Sáinz