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.
733
datasets available to search
ShareScore release 0.9.0
Dataset results
733 results for “Ryukyu Islands”
FIGURE 6 in Heteromysoides taramensis, a new species of mysid (Mysida: Mysidae) from an anchialine cave on Tarama Island, Ryukyu Islands, southwestern Japan
FIGURE 6. Heteromysoides taramensis sp. nov. A–F, paratype (SMBL-V0586), G, holotype (SMBL-V0585): A, ventral view of right first pleopod; B, ventral view of right second pleopod; C, ventral view of right third pleopod; D, ventral view of right fourth pleopod; E, ventral view of right fifth pleopod; F, dorsal view of telson and uropods; G, dorsal view of telson Scale bars = 100 μm.
FIGURE 4. Pulvinaria urbicola Cockerell, 1893 in Review of the Pulvinaria (Hemiptera: Coccomorpha: Coccidae) species of the Ryukyu Islands, Japan
FIGURE 4. Pulvinaria urbicola Cockerell, 1893, adult female collected in Okinawa prefecture in 2001 (modified from Tanaka et al. 2006). ANT, antenna; AP, anal plate; DA, dermal areolations; DMD, dorsal microduct; DS, dorsal seta; DT, dorsal tubercle; LG, leg; MP, multilocular pores; MS, marginal setae; POP, preopercular pores; SDP, spiracular disc pore; SSP, stigmatic spines; VMD, ventral microduct; VTD, ventral tubular ducts of types I–III. Scale bars: 100 µm for ANT, AP, DA and LG; 50 µm for MS and SSP; 10 µm for others.
FIGURE 3. Pulvinaria psidii Maskell, 1893 in Review of the Pulvinaria (Hemiptera: Coccomorpha: Coccidae) species of the Ryukyu Islands, Japan
FIGURE 3. Pulvinaria psidii Maskell, 1893, adult female collected in Okinawa prefecture in 1999. ANT, antenna; AP, anal plate; DA, dermal areolations; DMD, dorsal microduct; DS, dorsal seta; DT, dorsal tubercle; DTD, dorsal tubular duct; LG, leg; MP, multilocular pore; MS, marginal setae; POP, preopercular pores; SDP, spiracular disc pore; SSP, stigmatic spines; VMD, ventral microduct; VTD, ventral tubular ducts of types I–III. Scale bars: 100 µm for ANT, AP, DA and LG; 50 µm for SSP; 10 µm for others.
FIGURE 2. Pulvinaria polygonata Cockerell, 1905 in Review of the Pulvinaria (Hemiptera: Coccomorpha: Coccidae) species of the Ryukyu Islands, Japan
FIGURE 2. Pulvinaria polygonata Cockerell, 1905, adult female collected in Okinawa prefecture in 2019. ANT, antenna; AP, anal plate; DA, dermal areolations; DMD, dorsal microduct; DS, dorsal seta; DT, dorsal tubercle; DTD, dorsal tubular duct; LG, leg; MP, multilocular pores; MS, marginal setae; POP, preopercular pores; SDP, spiracular disc pore; SSP, stigmatic spines; VMD, ventral microduct; VTD, ventral tubular ducts of types I–III. Scale bars: 100 µm for ANT, AP, DA and LG; 50 µm for MS and SSP; 10 µm for others.
FIGURE 1. Pulvinaria neocellulosa Takahashi, 1940 in Review of the Pulvinaria (Hemiptera: Coccomorpha: Coccidae) species of the Ryukyu Islands, Japan
FIGURE 1. Pulvinaria neocellulosa Takahashi, 1940, adult female collected in Okinawa prefecture in 1999 (modified from Tanaka & Amano 2005). ANT, antenna; AP, anal plate; DA, dermal areolations; DMD, dorsal microduct; DS, dorsal seta; DT, dorsal tubercle; DTD, dorsal tubular duct; LG, leg; MP, multilocular pores; MS, marginal setae; POP, preopercular pores; SDP, spiracular disc pore; SSP, stigmatic spines; VMD, ventral microduct; VTD, ventral tubular ducts of types I–III. Scale bars: 100 µm for ANT, AP, DA and LG; 50 µm for MS and SSP; 5µm for DMD, VMD; 10 µm for others.
FIGURES 19–27 in A new species of Leptoplectus Casey from Ryukyu Islands, Japan, with comments on morphology of integumental structures in Euplectitae (Coleoptera, Staphylinidae Pselaphinae)
FIGURES 19–27. Leptoplectus kijimunaa sp. n., female (19, 20, 23) and male (21, 22, 24–27). Abdominal tergite IV (right paratergite removed) (19); abdominal sternites III and IV in ventral view (20); abdominal sternites VII–IX in ventral view (21); separated hemisternites IX in ventral view (22); female terminalia in dorsal view (23); aedeagus in dorsal (24, 26) and lateral (25, 27) views. Abbreviations: lat, laterotergite; III, IV, VII–IX, abdominal segments. Arrowheads indicate abdominal foveae.
FIGURES 12–18 in A new species of Leptoplectus Casey from Ryukyu Islands, Japan, with comments on morphology of integumental structures in Euplectitae (Coleoptera, Staphylinidae Pselaphinae)
FIGURES 12–18. Leptoplectus kijimunaa sp. n., female (12, 14) and male (13, 15–18). Left elytron in dorsal view (12); pterothorax and abdominal base in ventral view (13); pterothorax in ventral view (14); abdomen in dorsal view (15); elytral apices and abdominal tergites IV and V in dorsal view (16); posterior adsutural region of elytra and base of abdominal tergite IV (17); posteromedian region of abdominal tergite IV and base of tergite V (18). Abbreviations: dc, discal carina; el, elytron; fur, metafurca; lat, laterotergite; v2, mesoventrite; v3, metaventrite; IV–VII, abdominal tergites. Arrowheads indicate elytral (12) and pterothoracic (14) foveae.
FIGURES 5–11 in A new species of Leptoplectus Casey from Ryukyu Islands, Japan, with comments on morphology of integumental structures in Euplectitae (Coleoptera, Staphylinidae Pselaphinae)
FIGURES 5–11. Leptoplectus kijimunaa sp. n., male (5, 8) and female (6, 7, 9–11). Head, pronotum and elytral base in dorsal view (5); head in dorsal view (6); labrum in dorsal view (7); head and prothorax in ventral view (8); prothorax in ventral view (9); mesonotum in dorsal view (10); and metanotum in dorsal view (11). Abbreviations: alc, alacrista; bef, basal elytral fovea; dtp, dorsal tentorial pit; fs, frontal sulcus; gp, gular plate; hg, hypomeral groove; laf, lateral antebasal fovea; lbr, labrum; maf, median antebasal fovea; md, mandible; mls, median longitudinal sulcus; pn3, metapostnotum; pst, prosternum; ptp, posterior tentorial pit; sc2, mesoscutum; sc3, metascutum; scl2, mesoscutellum; ss, sutural sulcus; t, tentorium. Arrowheads indicate ventral prothoracic foveae.
FIGURES 1–4 in A new species of Leptoplectus Casey from Ryukyu Islands, Japan, with comments on morphology of integumental structures in Euplectitae (Coleoptera, Staphylinidae Pselaphinae)
FIGURES 1–4. Leptoplectus kijimunaa sp. n., male. Dorsal habitus (1, 2); right antenna in dorsal view (3); apex of right antennomere 11 in dorsal view (4). Abbreviation: bcs, basiconic sensillum.
FIGURE 4. Salmoneus singularis n in A new species of alpheid shrimp tentatively assigned to Salmoneus Holthuis, 1955 (Decapoda: Caridea) from the Ryukyu Islands, Japan
FIGURE 4. Salmoneus singularis n. sp., holotype, non-ovigerous specimen (cl 5.4 mm), CBM-ZC 16164. A, right pereopod 1 (major cheliped), lateral view; B, same, coxa to carpus, lateral view in different angle; C, same, chela, extensor view; D, same, carpus and chela, flexor view; E, same, carpus and chela, mesial view.
FIGURE 1. Salmoneus singularis n in A new species of alpheid shrimp tentatively assigned to Salmoneus Holthuis, 1955 (Decapoda: Caridea) from the Ryukyu Islands, Japan
FIGURE 1. Salmoneus singularis n. sp., holotype, non-ovigerous specimen (cl 5.4 mm), CBM-ZC 16164, habitus in lateral view.
FIGURE 5. Salmoneus singularis n in A new species of alpheid shrimp tentatively assigned to Salmoneus Holthuis, 1955 (Decapoda: Caridea) from the Ryukyu Islands, Japan
FIGURE 5. Salmoneus singularis n. sp., holotype, non-ovigerous specimen (cl 5.4 mm), CBM-ZC 16164. A, basal part of left maxilliped 3 and precoxa with arthrobranch, ventral view; B, distal part of ultimate article of left maxilliped 3, lateral view; C–E, distal part of propodus and dactylus of left pereopods 3–5, mesial view.
FIGURE 3. Salmoneus singularis n in A new species of alpheid shrimp tentatively assigned to Salmoneus Holthuis, 1955 (Decapoda: Caridea) from the Ryukyu Islands, Japan
FIGURE 3. Salmoneus singularis n. sp., holotype, non-ovigerous specimen (cl 5.4 mm), CBM-ZC 16164, left thoracic appendages. A, maxilliped 3, lateral view; B, pereopod 1 (minor cheliped), lateral view; C, same, chela, extensor view; D, pereopod 2, lateral view; E, pereopod 3, lateral view; F, same, propodus and dactylus, lateral view; G, pereopod 4, lateral view; H, pereopod 5, lateral view.
FIGURE 2. Salmoneus singularis n in A new species of alpheid shrimp tentatively assigned to Salmoneus Holthuis, 1955 (Decapoda: Caridea) from the Ryukyu Islands, Japan
FIGURE 2. Salmoneus singularis n. sp., holotype, non-ovigerous specimen (cl 5.4 mm), CBM-ZC 16164. A, anterior part of carapace and cephalic appendages, lateral view; B, same, dorsal view; C, telson, dorsal view; D, left eye, anterolateral view; E, left antenna, ventral view (setae omitted); F, left pleopod 2, dorsal (anterior) view (setae omitted); G, left uropod, dorsal view (perpendicular to horizontal plane).
Data from: Divergence before and after the isolation of islands: phylogeography of the Bradybaena land snails on the Ryukyu Islands of Japan
Aim: Vicariance events have been proposed as a major source of lineage divergence on continental islands, whereas dispersal events followed by isolation have been proposed as the major cause on oceanic islands. However, organisms on continental islands may include taxa with characteristics similar to those on oceanic islands. Lineage divergence unassociated with the geological events that separated islands may also have occurred. This study addresses these possibilities through morphological and molecular phylogeographic analyses of land snails (Bradybaena) on continental islands. Location: Samples were mainly collected on the Ryukyu and Izu Islands in Japan Methods: Molecular phylogenetic analyses using mtDNA (16S rRNA + COI) and nDNA (18S rRNA + ITS1 + 5.8S rRNA + ITS2 + 28S rRNA) were conducted for 225 individuals comprising B. circulus, B. phaeogramma, and four of its subspecies endemic to the Ryukyu Islands. Shell and genital morphologies were also examined using qualitative and statistical methods. Results: The Bradybaena populations examined were phylogenetically classified into six major clades whose divergence occurred during either Miocene-Pliocene or Pliocene-Pleistocene. Although phylogeographic patterns estimated on the basis of the 16S rRNA gene support the vicariance hypothesis for the origin of the major clades of Bradybaena, the phylogeographic patterns estimated by COI showed that these major clades resulted from diversification before the archipelagos separated from the continent. Both of these phylogeographic patterns suggest that genetic divergence occurred by dispersal from the southern to northern islands after divergence of major clades. The inferred phylogenies document parallel morphological evolution, yielding phylogenetic, morphological, and taxonomic incongruences that created mosaic geographical patterns in the distribution of nominal taxa. Main conclusions: Lineage diversification in endemic species on continental islands can occur before archipelago separation or subsequently via dispersal, as is seen in species on oceanic islands. Mechanisms other than vicariance should also be considered when estimating processes that created geographical patterns of genetic variations on continental islands.
FIGURES 15. Proterotaiwanella tanabei n in A new mecistocephalid centipede from Ryukyu Islands and a revisitation of ' Taiwanella' (Chilopoda: Geophilomorpha: Mecistocephalidae)
FIGURES 15. Proterotaiwanella tanabei n. sp., female, 21 mm, holotype. 1, cephalic capsule and right antenna, dorsal; 2, cephalic capsule, ventral; 3, distal part of mandible; 4, right half of maxillary complex, ventral; 5, tip of the second maxillary telopodite, ventral.
FIGURES 67. Proterotaiwanella tanabei n in A new mecistocephalid centipede from Ryukyu Islands and a revisitation of ' Taiwanella' (Chilopoda: Geophilomorpha: Mecistocephalidae)
FIGURES 67. Proterotaiwanella tanabei n. sp., 6, forcipular segment and right forcipule, dorsal; 7, last legbearing segment and terminal segments, ventral (left telopodite and setae on relevant coxopleura not represented). Areolation is drawn only partially but margins of areolate regions are indicated by incomplete lines.
FIGURE 2. G1 in Amamiku, a new genus for the true freshwater crab, Candidiopotamon amamense Minei, 1973 (Decapoda: Brachyura: Potamidae), from the Central Ryukyu Islands, Japan
FIGURE 2. G1 of Amamiku amamensis (Minei, 1973) and four species of three East Asian genera. A, Amamiku amamensis (Minei, 1973) (ZLKU m. 1086, holotype, CL 21.9 mm); B, Candidiopotamon rathbunae (De Man, 1914) (RUMFZC86, CL 37.0 mm); C, Candidiopotamon okinawense Minei, 1973 (ZLKU m.1104, holotype, CL 36.2 mm); D, Ryukyum yaeyamense (Minei, 1973) (ZLKU 13744, holotype, CL 36.2 mm); E, Geothelphusa obtusipes Stimpson, 1858 (NSMTCr. 9558, CL 17.3 mm); d, dorsal view; v, ventral view. Scales: A–D, 5mm; E, 2.5 mm.
FIGURE 1. Neorhynchoplax yaeyamaensis, new species. a in Neorhynchoplax yaeyamaensis, a new false spider crab (Decapoda: Brachyura: Hymenosomatidae) from the Yaeyama Group, the Ryukyu Islands, Japan
FIGURE 1. Neorhynchoplax yaeyamaensis, new species. a, dorsal view; b, colour in life; c, dorsal view of ovigerous female; d, ventral view of ovigerous female; e, eggs within internal abdominal brood cavity, dorsal view. a, RUMFZC132 (paratype, male, CW 2.3 mm); b, NSMTCr. 15954 (paratype, female, CW 2.7 mm); c–e, RUMFZC134, (paratype, female, CW 3.6 mm).
FIGURE 2. Neorhynchoplax yaeyamaensis, new species. a in Neorhynchoplax yaeyamaensis, a new false spider crab (Decapoda: Brachyura: Hymenosomatidae) from the Yaeyama Group, the Ryukyu Islands, Japan
FIGURE 2. Neorhynchoplax yaeyamaensis, new species. a, carapace; b, chela, right; c, dactylus of second ambulatory leg, left; d, third maxilliped, left; e, male abdomen; f, G1, left. a, b, RUMFZC 132 (paratype, male, CW 2.3 mm); c, RUMFZC24 (holotype, male, CW 3.5 mm); d–f, RUMF ZC133 (paratype, male, CW 2.1 mm). Scales, a–e, 0.5 mm; f, 0.1 mm.
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.