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Data from: Dealing with allometry in linear and geometric morphometrics: a taxonomic case study in the Leporinus cylindriformis group (Characiformes: Anostomidae) with description of a new species from Suriname
To achieve maximum efficacy, taxonomic studies that seek to distinguish amongst species must first account for allometric shape variation within species. Two recently developed software packages (SMATR and MorphoJ) offer regression-based allometric approaches that are notable for their statistical power and ease of use and that may prove highly useful to taxonomists working with linear or geometric morphometric data. We investigate species delimitation of the slender-bodied fishes in the Leporinus cylindriformis group using these programs and demonstrate the utility of the allometric corrections that they provide. Without allometric correction, many pairs of species are difficult to distinguish on the basis of morphometrics, but once regressions are used to account for marked allometric variation within species, most of the recognized species in this group can be readily distinguished with linear or geometric morphometrics, particularly using variation in the depth of the body. Both approaches returned congruent patterns of separation amongst putative species, but the geometric approach in MorphoJ distinguished amongst four more pairs of species than did the linear approach in SMATR and appears to provide slightly more statistical power. Based on distinctive morphometrics, meristics, and coloration, a highly elongate species of Leporinus from the Suriname, Corantijn, and Coppename rivers of Suriname is described herein as a new species, Leporinus apollo sp. nov. The unique L. cylindriformis holotype from Porto de Moz, Brazil differs in morphology, meristics, and pigmentation from specimens commonly referred to that species from the main basin of the Amazon; the latter specimens may represent an additional undescribed species. The L. cylindriformis holotype itself may represent a rare species or a specimen collected at the edge of its native range. Measurements of the holotype and paratype of Leporinus niceforoi, which were collected in the Amazonian slope of Colombia, differ substantially from similarly pigmented and putatively conspecific specimens from Amazonian portions of Ecuador and Peru. Recently collected specimens from Colombia are needed to determine whether the observed morphometric variation encompassed by the current concept of L. niceforoi indicates a morphocline within a single species, suggests the presence of multiple cryptic species, or results from shrinkage of the types. In all these cases, linear or geometric morphometric data can reliably differentiate amongst species, but only after one accounts for allometric shape variation. The new SMATR and MorphoJ software packages both offer easy and effective approaches to such allometrically informed taxonomy, and may prove useful to any systematist working on taxa that change shape as they grow.
Pressure-induced amorphisation and a new high density amorphous metallic phase in matrix-free Ge nanoparticles: simulation data
<p>The folder contains:</p> <p>-Pseudopotential files for Ge and H in the .recpot format used in all calculations.</p> <p>-Input and output files for constant enthalpy geometry relaxations of hydrogenated Ge nanocrystals using the electronic enthalpy method within ONETEP (version 3.3).</p> <p>-Input and output files for the DFPT calculations performed with CASTEP (version 6.01).</p>
FIGURES 510. Lamyctes hellyeri n in A new blind Lamyctes (Chilopoda: Lithobiomorpha) from Tasmania with an analysis of molecular sequence data for the Lamyctes Henicops Group
FIGURES 510. Lamyctes hellyeri n. sp. 5, 10, QVMAG 23:23044, holotype female. 5, dorsal habitus, scale 1 mm; 10, ventral view of posterior segments and gonopods, scale 100 m. 69, QVMAG 23:23045, female, scale 0.5 mm. 6, leg 12; 7, leg 13; 8, leg 14; 9, leg 15.
FIGURES 2633. Lamyctes hellyeri n in A new blind Lamyctes (Chilopoda: Lithobiomorpha) from Tasmania with an analysis of molecular sequence data for the Lamyctes Henicops Group
FIGURES 2633. Lamyctes hellyeri n. sp. 2631, QVMAG 23:23046, female. 2627, gnathal edge of mandible and detail of ventral part, scales 10 m; 28, aciculae, scale 10 m; 29, 30, fringe of branching bristles, on successively more dorsal part of mandible, scales 10 m; 31, sternite of segment 15 and posterior margin of sternite 14, scale 100 m. 3233, QVMAG 23:23047, female, gonopod and detail of spurs and claw, scales 50 m, 10 m.
FIGURE 38 in A new blind Lamyctes (Chilopoda: Lithobiomorpha) from Tasmania with an analysis of molecular sequence data for the Lamyctes Henicops Group
FIGURE 38. Cladograms based on molecular sequence data. Cladograms at left are shortest based on parameter set (121) that minimises incongruence between genes; cladograms at right are strict consensus of all 15 explored parameter sets. Numbers at nodes are parsimony jackknife frequencies. From left to right, top to bottom: cladograms based on combined molecular data (2198 steps); cladograms based on 18S rRNA (562 steps); cladograms based on 28S rRNA (98 steps); cladograms based on 16S rRNA (616 steps); cladograms based on COI (901 steps).
FIGURES 1415 in Two new free living mite species of Eustigmaeus (Actinedida: Raphignathoidea: Stigmaeidae) from Poland, with new data of some other rare species of the genus
FIGURES 1415. Eustigmaeus brevivestitus sp. n., male (allotype). 14 left tibia, tarsus and apotel I, paraxially; 15 aedagus, lateral view.
FIGURES 1112 in Two new free living mite species of Eustigmaeus (Actinedida: Raphignathoidea: Stigmaeidae) from Poland, with new data of some other rare species of the genus
FIGURES 1112. Eustigmaeus brevivestitus sp. n., female (holotype). 11 genital region. 12 right chelicera and palp, dorsal view.
FIGURES 89 in Two new free living mite species of Eustigmaeus (Actinedida: Raphignathoidea: Stigmaeidae) from Poland, with new data of some other rare species of the genus
FIGURES 89. Eustigmaeus brevivestitus sp. n., female (holotype). 8 dorsal view; 9 opisthosomal seta c.
FIGURES 57 in Two new free living mite species of Eustigmaeus (Actinedida: Raphignathoidea: Stigmaeidae) from Poland, with new data of some other rare species of the genus
FIGURES 57. Eustigmaeus formosus sp. n., female (holotype). 5 genital region; 6 palp (right); 7 right leg I, paraxial view.
FIGURES 13 in Two new free living mite species of Eustigmaeus (Actinedida: Raphignathoidea: Stigmaeidae) from Poland, with new data of some other rare species of the genus
FIGURES 13. Eustigmaeus formosus sp. n., female (holotype). 1 dorsal view; 2 aspidosomal seta be; 3 opisthosomal seta e.
FIGURES 1617 in Two new free living mite species of Eustigmaeus (Actinedida: Raphignathoidea: Stigmaeidae) from Poland, with new data of some other rare species of the genus
FIGURES 1617. Eustigmaeus brevivestitus sp. n., larva. 16 total aspect; 17 left tibia, tarsus and apotel, paraxial view.
FIGURES 7–9 in New data on the distribution of species of Gastroserica Brenske, 1897, with descriptions of five new taxa from China and Laos (Coleoptera: Scarabaeidae: Sericini)
FIGURES 7–9: Gastroserica huaphanensis sp. n. (Holotype: Laos, Hua Phan prov., Ban Saluei, Phu Phan Mt.); 7, 9 Aedeagus lateral view, 8 Parameres dorsal view. Scale: 0.5 mm.
FIGURES 1–3 in New data on the distribution of species of Gastroserica Brenske, 1897, with descriptions of five new taxa from China and Laos (Coleoptera: Scarabaeidae: Sericini)
FIGURES 1–3: Gastroserica kucerai sp. n. (Holotype: China N. Sichuan Nanjiang); 1,3 Aedeagus lateral view, 2 Parameres dorsal view. Scale: 0.5 mm.
FIGURES 13–15 in New data on the distribution of species of Gastroserica Brenske, 1897, with descriptions of five new taxa from China and Laos (Coleoptera: Scarabaeidae: Sericini)
FIGURES 13–15: Gastroserica stictica sp. n. (Holotype: Laos, Hua Phan prov., Ban Saluei, Phu Phan Mt.); 13, 15 Aedeagus lateral view, 14 Parameres dorsal view. Scale: 0.5 mm.
FIGURES 10–12 in New data on the distribution of species of Gastroserica Brenske, 1897, with descriptions of five new taxa from China and Laos (Coleoptera: Scarabaeidae: Sericini)
FIGURES 10–12: Gastroserica contaminata sp. n. (Holotype: Laos, Hua Phan prov., Ban Saluei, Phu Phan Mt.); 10, 12 Aedeagus lateral view, 11 Parameres dorsal view. Scale: 0.5 mm.
FIGURE 4 in New data on brachypterous Paederus (Coleoptera, Staphylinidae) of mainland China
FIGURE 4. Paederus (Gnathopaederus) bursavacua (Dashahe). A—female mouthparts; B—female tergite VIII; C—female sternite VIII. D—male mouthparts; E—male tergite VIII; F—male sternite VIII; G—aedeagus in ventral view; H—aedeagus in lateral view; I—aedeagus in dorsal view. Scale bars: 0.5 mm.
FIGURES 6–9. 6 in New data on brachypterous Paederus (Coleoptera, Staphylinidae) of mainland China
FIGURES 6–9. 6—Paederus nanlingensis walking on the humus. 7—Paederus (Gnathopaederus) bursavacua mating on the dead leaves. 8—Paederus chinensis walking on the stone stairs. 9—Ri-Xin Jiang (right) and De-Yao Zhou (left) collecting Paederus (Gnathopaederus) bursavacua at Dashahe, Guizhou.
FIGURE 5 in New data on brachypterous Paederus (Coleoptera, Staphylinidae) of mainland China
FIGURE 5. Paederus parvidenticulatus (Nanfengmian). A—habitus; B—forebody; C—aedeagus in ventral view; D— aedeagus in lateral view; E—aedeagus in dorsal view. Scale bars: A–B 2.0 mm, C—E 1.0 mm.
FIGURE 1 in New data on brachypterous Paederus (Coleoptera, Staphylinidae) of mainland China
FIGURE 1. Habitus (A–C): A—P. daicongchaoi; B—P. nanlingensis; C—P. (Gnathopaederus) bursavacua (Dashahe). Antenna (D–F): D—P. daicongchaoi; E—P. nanlingensis; F—P. (G.) bursavacua (Dashahe). Scale bars: A–C 2.0 mm, D–F 1.0 mm.
FIGURE 3. Paederus nanlingensis. A in New data on brachypterous Paederus (Coleoptera, Staphylinidae) of mainland China
FIGURE 3. Paederus nanlingensis. A—female mouthparts; B—female tergite VIII; C—female sternite VIII. D—male mouthparts; E—male tergite VIII; F—male sternite VIII; G—aedeagus in ventral view; H—aedeagus in lateral view; I— aedeagus in dorsal view. Scale bars: 0.5 mm.
ScienceDex guides
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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.