Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
1,362
datasets available to search
ShareScore release 0.9.0
Dataset results
1,362 results for “Mygalomorpha”
Fig. 5. Ammonius pupulus Thorell, 1899 in On the genus Ammonius Thorell, 1899 (Mygalomorphae, Barychelidae): description of the female of A. pupulus, a new species and new distribution records
Fig. 5. Ammonius pupulus Thorell, 1899, ♀ (RMCA 227221). A. Habitus dorsal. B. Habitus ventral. C. Maxillae and labium, ventral view. D. Eye group, dorsal view. E. Spermathecae. F. Sternum, ventral view. Scale bars: A–B = 1 mm; C–D, F = 0.5 mm; E = 0,02 mm.
Fig. 3 in On the genus Ammonius Thorell, 1899 (Mygalomorphae, Barychelidae): description of the female of A. pupulus, a new species and new distribution records
Fig. 3. SEM micrographs of the male palp of Ammonius pupulus Thorell, 1899 (RMCA 227221). A–B. Tibial concavity. A. Prolateral view. B. Retrolateral view. C–D. Cymbium. C. Prolateral view. D. Retrolateral view. Abbreviations: Em = embolus; PL = prolateral lobe; So = slit organ; Tc = tibial concavity. Scale bars: A = 400 µm; B = 200 µm; C–D = 400 µm.
FIG. 3 in A new small Acanthogonatus Karsch, 1880 (Mygalomorphae, Pycnothelidae) species from Argentinean Patagonia: description of A. messii Signorotto & Ferretti n. sp. and its phylogenetic placement
FIG. 3. — Acanthogonatus messii Signorotto & Ferretti n. sp., holotype male: A, carapace, dorsal view; B, sternum, ventral view; C, abdomen, dorsal view; D, abdomen, ventral view; E, labium and maxillae, ventral view; F, eyes, dorsal view; G, chelicerae, prolateral view (green arrow indicates intercheliceral tumescence); H, leg I, prolateral view; I, leg I, ventral view. Abbreviations: Mt, metatarsus, Tap, tibial apophysis, Ti, tibia. Scale bars: A-D, F-I, 1 mm, E, 0.5 mm.
FIG. 4 in A new small Acanthogonatus Karsch, 1880 (Mygalomorphae, Pycnothelidae) species from Argentinean Patagonia: description of A. messii Signorotto & Ferretti n. sp. and its phylogenetic placement
FIG. 4. — Acanthogonatus messii Signorotto & Ferretti n. sp., holotype male: A-D, palpal bulb. A, prolateral view; B, dorsal view (green arrow indicates the keel); C, retrolateral view (green arrow indicates the keel); D, dorsal view; E, palp, prolateral view; F, palp, retrolateral view. Abbreviations: Cy, cymbium; Ti, tibia. Scale bars: 1 mm.
FIG. 1 in A new small Acanthogonatus Karsch, 1880 (Mygalomorphae, Pycnothelidae) species from Argentinean Patagonia: description of A. messii Signorotto & Ferretti n. sp. and its phylogenetic placement
FIG. 1. — Acanthogonatus notatus (Mello-Leitão, 1940), male: A-D, male holotype; E, male (CAI); A, palp, prolateral view; B, palp, ventral view; C, palp, retrolateral; E, palpal bulb, dorsal view (green arrow indicates the denticles on embolus). Abbreviations: Mt, metatarsus, Tap, tibial apophysis, Ti, tibia. Scale bars: A-D, 1 mm; E, 0.5 mm.
FIG. 5 in A new small Acanthogonatus Karsch, 1880 (Mygalomorphae, Pycnothelidae) species from Argentinean Patagonia: description of A. messii Signorotto & Ferretti n. sp. and its phylogenetic placement
FIG. 5. — Acanthogonatus messii Signorotto & Ferretti n. sp., paratype female: A, carapace, dorsal view; B, sternum, ventral view; C, abdomen, dorsal view; D, abdomen, ventral view; E, labium and maxillae, ventral view; F, eyes, dorsal view; G, leg IV, ventral view; H, spermathecae. Scale bars: A-G, 1 mm, H, 0.5 mm.
FIG. 2 in A new small Acanthogonatus Karsch, 1880 (Mygalomorphae, Pycnothelidae) species from Argentinean Patagonia: description of A. messii Signorotto & Ferretti n. sp. and its phylogenetic placement
FIG. 2. — Acanthogonatus messii Signorotto & Ferretti n. sp., habitus: A, female molted in laboratory; B, female collected and photographed from field; C, male molted in laboratory; D, male collected walking in the field. Scale bars: 1 cm.
FIG. 6. — A in A new small Acanthogonatus Karsch, 1880 (Mygalomorphae, Pycnothelidae) species from Argentinean Patagonia: description of A. messii Signorotto & Ferretti n. sp. and its phylogenetic placement
FIG. 6. — A, habitat at type locality of Acanthogonatus messii Signorotto & Ferretti n. sp.; B, C, female burrows opened at night at type locality.
FIG. 7 in A new small Acanthogonatus Karsch, 1880 (Mygalomorphae, Pycnothelidae) species from Argentinean Patagonia: description of A. messii Signorotto & Ferretti n. sp. and its phylogenetic placement
FIG. 7. — Most parsimonious cladogram using IW. Symbols: black squares: exclusive synapomorphies; white squares: homoplasies. Numbers above the circles: characters; below: states. Species group notations follows Goloboff (1995).
Data from: Phylogenomic reclassification of the world's most venomous spiders (Mygalomorphae, Atracinae), with implications for venom evolution
Here we show that the most venomous spiders in the world are phylogenetically misplaced. Australian atracine spiders (family Hexathelidae), including the notorious Sydney funnel-web spider Atrax robustus, produce venom peptides that can kill people. Intriguingly, eastern Australian mouse spiders (family Actinopodidae) are also medically dangerous, possessing venom peptides strikingly similar to Atrax hexatoxins. Based on the standing morphology-based classification, mouse spiders are hypothesized distant relatives of atracines, having diverged over 200 million years ago. Using sequence-capture phylogenomics, we instead show convincingly that atracines are sister to actinopodids, and that hexathelids are non-monophyletic. Three new mygalomorph lineages are elevated to the family level, and a revised circumscription of the family Hexathelidae is presented. Re-writing this phylogenetic story has major implications for how we study venom evolution in these spiders, and potentially genuine consequences for antivenom development and bite treatment research. More generally, our research provides a textbook example of the applied importance of modern phylogenomic research.
Species delimitation with limited sampling: an example from rare trapdoor spider genus Cyclocosmia (Mygalomorphae, Halonoproctidae)
<p>The outcome of species delimitation depends on many factors, including conceptual framework, study design, data availability, methodology employed, and subjective decision-making. Obtaining sufficient taxon sampling in endangered or rare taxa might be difficult, particularly when non-lethal tissue collection cannot be utilized. The need to avoid overexploitation of the natural populations may thus limit the methodological framework available for downstream data analyses and bias the results. We test species boundaries in rare North American trapdoor spider genus <em>Cyclocosmia</em> Ausserer (1871) inhabiting the Southern Coastal Plain biodiversity hotspot with the use genomic data and two multispecies coalescent model methods. We evaluate the performance of each methodology within a limited sampling framework. To mitigate the risk of species over-splitting, common in taxa with highly structured populations, we subsequently implement a species validation step via genealogical diversification index (gdi), which accounts for both genetic isolation and gene flow. We delimited eight geographically restricted lineages within North American <em>Cyclocosmia</em>, suggesting that major river drainages in the region are likely barriers to dispersal. Our results suggest that utilizing BPP in the species discovery step might be a good option for datasets comprising hundreds of loci, but fewer individuals, which may be a common scenario for rare taxa. However, we also show that such results should be validated via gdi, in order to avoid over-splitting.</p>
Fig. 8. Misgolas wayorum n in Trapdoor Spiders of the Genus Misgolas (Mygalomorphae: Idiopidae) in the Sydney Region, Australia, With Notes on Synonymies Attributed to M. rapax
Fig. 8. Misgolas wayorum n.sp. (A–D) Ƌ, holotype AM KS50047.
Fig. 7 in Trapdoor Spiders of the Genus Misgolas (Mygalomorphae: Idiopidae) in the Sydney Region, Australia, With Notes on Synonymies Attributed to M. rapax
Fig. 7. Misgolas maculosus. (A–C) ♀, AM KS69957. (A), tarsus
MAP 19 in Taxonomic Revision of the Spider Genus Actinopus Perty, 1833 (Araneae, Mygalomorphae, Actinopodidae)
MAP 19. Distribution map of Actinopus wallacei Chamberlin, 1917.
MAP 16 in Taxonomic Revision of the Spider Genus Actinopus Perty, 1833 (Araneae, Mygalomorphae, Actinopodidae)
MAP 16. Distribution map of Actinopus echinus Mello-Leit"o, 1949.
MAP 14 in Taxonomic Revision of the Spider Genus Actinopus Perty, 1833 (Araneae, Mygalomorphae, Actinopodidae)
MAP 14. Distribution map of Actinopus panguana sp. nov.
MAP 13 in Taxonomic Revision of the Spider Genus Actinopus Perty, 1833 (Araneae, Mygalomorphae, Actinopodidae)
MAP 13. Distribution map of Actinopus apiacas sp. nov.
MAP 9 in Taxonomic Revision of the Spider Genus Actinopus Perty, 1833 (Araneae, Mygalomorphae, Actinopodidae)
MAP 9. Distribution map of Actinopus parafundulus sp. nov. and Actinopus urucui sp. nov.
MAP 18 in Taxonomic Revision of the Spider Genus Actinopus Perty, 1833 (Araneae, Mygalomorphae, Actinopodidae)
MAP 18. Distribution map of Actinopus trinotatus Mello-Leit"o, 1938.
MAP 17 in Taxonomic Revision of the Spider Genus Actinopus Perty, 1833 (Araneae, Mygalomorphae, Actinopodidae)
MAP 17. Distribution map of Actinopus princeps Chamberlin, 1917.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.