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1,021 results for “Freshwater crabs”
FIGURE 4. Teretamon kempi n in A new species of freshwater crab of the genus Teretamon Yeo & Ng, 2007 (Decapoda: Brachyura: Potamidae) from Arunachal Pradesh, northeastern India
FIGURE 4. Teretamon kempi n. sp., holotype male (ZSI-C7128/2): A, ventral view of right G1; B, ventral view of terminal part of right G1; C, dorsal view of right G1; D, dorsal view of terminal part of right G1; E, dorsal view of right G2
FIGURE 3. Teretamon kempi n in A new species of freshwater crab of the genus Teretamon Yeo & Ng, 2007 (Decapoda: Brachyura: Potamidae) from Arunachal Pradesh, northeastern India
FIGURE 3. Teretamon kempi n. sp., paratype female (ZSI-C7130/2), A. dorsal view; B. frontal view; C. ventral view; D. thoracic sternites showing vulvae.
Figure 3 in Renewed sampling of inland aquatic habitats in southern Africa yields two novel freshwater crab species (Decapoda: Potamonautidae: Potamonautes)
Figure 3. Potamonautes bellarussus sp. nov., female from the Mecula mountains in the Niassa province, Mozambique, showing the bright-red colour of the freshwater crab while alive.
Figure 4 in Renewed sampling of inland aquatic habitats in southern Africa yields two novel freshwater crab species (Decapoda: Potamonautidae: Potamonautes)
Figure 4. Potamonautes bellarussus sp. nov., male holotype (carapace length = 39.29 mm) from the Yao Mountains, 1045 m a.s.l., 12°27′276″ S, 36°32′260″ E, Niassa province, Mozambique (SAM A 48212): A, whole animal, dorsal aspect; B, whole animal, ventral aspect; C, cephalothorax, frontal aspect. Scale bars: 10 mm.
Figure 8 in Renewed sampling of inland aquatic habitats in southern Africa yields two novel freshwater crab species (Decapoda: Potamonautidae: Potamonautes)
Figure 8. Potamonautes flavusjo sp. nov., male holotype, Verloren Vallei Nature Reserve (site B), Mpumalanga province of South Africa (SAM A 48203). A, left gonopod 1, anterior view; B, left gonopod 1, posterior view; C, left gonopod 2, anterior view. Scale bars: 10 mm.
Figure 7 in Renewed sampling of inland aquatic habitats in southern Africa yields two novel freshwater crab species (Decapoda: Potamonautidae: Potamonautes)
Figure 7. Potamonautes flavusjo sp. nov., male holotype (carapace length = 24.02 mm) Verloren Vallei Nature Reserve (site B), 2000 m a.s.l., 25°20′333 ″ S, 30°07 ′546 ″ E, Mpumalanga province of South Africa (SAM A 48203): A, whole animal, dorsal aspect; B, whole animal, ventral aspect; C, cephalothorax, frontal aspect. Scale bars: 10 mm. The right cheliped was broken off prior to capture.
Figure 5 in Renewed sampling of inland aquatic habitats in southern Africa yields two novel freshwater crab species (Decapoda: Potamonautidae: Potamonautes)
Figure 5. Potamonautes bellarussus sp. nov., male holotype from the Yao Mountains, Niassa province, Mozambique (SAM A 48212): A, left gonopod 1, anterior view; B, left gonopod 1 posterior view; C, left gonopod 2 anteri- or view. Scale bars: 10 mm.
Figure 6. A–C, Potamonautes perlatus s.s in Disentangling the divergence and cladogenesis in the freshwater crab species (Potamonautidae: Potamonautes perlatus sensu lato) in the Cape Fold Mountains, South Africa, with the description of two novel cryptic lineages
Figure 6. A–C, Potamonautes perlatus s.s. male neotype (SAM A45755): A, left gonopod 1, anterior view; B, left gonopod 1 posterior view; C, left gonopod 2 posterior view. D–F, Potamonautes barbarai sp. nov. male holotype (SAM A41061): D, left gonopod 1, anterior view; E, left gonopod 1 posterior view; F, left gonopod 2 posterior view; and G–I, Potamonautes barnardi sp. nov. male holotype (SAM A41013): G, left gonopod 1, anterior view; H, left gonopod 1 posterior view; I, left gonopod 2 posterior view. Scale bars = 1.0 mm.
Figure 3. A in Disentangling the divergence and cladogenesis in the freshwater crab species (Potamonautidae: Potamonautes perlatus sensu lato) in the Cape Fold Mountains, South Africa, with the description of two novel cryptic lineages
Figure 3. A consensus Bayesian inference phylogram of Potamonautes perlatus s.l. from the combined nuDNA (28S rRNA) and mtDNA (cytochrome oxidase I and 16S rRNA) data sets as well as outgroups. Node support values are shown by maximum likelihood (ML) bootstrap values above and maximum parsimony (MP)/posterior probabilities of Bayesian inference (BI) below. Low bootstrap support (<75% for MP and ML) and posterior probability (<0.95 for BI) values are not shown. The * is indicative of nodes that are not statistically supported.
Figure 1. Sampling localities for Potamonautes perlatus s.l in Disentangling the divergence and cladogenesis in the freshwater crab species (Potamonautidae: Potamonautes perlatus sensu lato) in the Cape Fold Mountains, South Africa, with the description of two novel cryptic lineages
Figure 1. Sampling localities for Potamonautes perlatus s.l. along rivers occurring on the Cape Fold Mountains. The black circles with adjacent numbers represent localities (see Table 1 for names).
Figure 2. A in Disentangling the divergence and cladogenesis in the freshwater crab species (Potamonautidae: Potamonautes perlatus sensu lato) in the Cape Fold Mountains, South Africa, with the description of two novel cryptic lineages
Figure 2. A maximum likelihood (ML) phylogram of the combined mtDNA sequences for the phylogenetic reconstruction of Potamonautes perlatus s.l. The ML node support is shown by bootstrap values above each branch (only values above 75% are shown). The values below the branches are bootstrap values for maximum parsimony (MP)/posterior probabilities for Bayesian inference (BI; the * indicates no support). The numbers next to each taxon name represent the individual specimens; no numbering is given to taxa for which the entire population occurs on one branch.
FIGURE 2 in Geothelphusa makatao sp. nov. (Crustacea: Brachyura: Potamidae), a new freshwater crab from an uplifted Pleistocene reef in Taiwan
FIGURE 2. Geothelphusa makatao sp. nov. a, dorsal view of the holotype (NMNS-5915-001); b, frontal view of the holotype; c, ventral view of the holotype; d, e, live coloration of a male, dorsal view; f an individual eating mud; g, a female with brood in a natural habitat (the campus of National Sun Yat-sen University); h, habitat in a dry creek bed where individuals were hidden under rocks (near Longcyuan Temple, Chaishan).
FIGURE 1 in Geothelphusa makatao sp. nov. (Crustacea: Brachyura: Potamidae), a new freshwater crab from an uplifted Pleistocene reef in Taiwan
FIGURE 1. Male right first and second pleopods of Geothelphusa makatao sp. nov. (holotype, NMNS-5915001). a, G1, ventral view of right G1; b, terminal segment of G1; c, dorsal view of right G1; d, ventral view of right G2. Scale = 0.5 mm.
FIGURE 3. A in Geothelphusa makatao sp. nov. (Crustacea: Brachyura: Potamidae), a new freshwater crab from an uplifted Pleistocene reef in Taiwan
FIGURE 3. A minimum evolution (ME) tree of the Geothelphusa pingtung clade, with the outgroup, G. ancylophallus, in southwestern Taiwan based on 1164 bp of the combined 16S rRNA and cytochrome oxidase I (COI) genes. Probability values at the nodes represent confidence values for ME, maximum parsimony (MP), Bayesian inference (BI), and maximum likelihood (ML). Only confidence values of ≥ 50% are shown. An asterisk (*) with a haplotype indicates that the holotype was included.
Figure 4 in Neglected refugia of biodiversity: mountainous regions in Mozambique and Malawi yield two novel freshwater crab species (Potamonautidae: Potamonautes)
Figure 4. Potamonautes namuliensis sp. nov. male holotype, SAM A46796. A, left gonopod 1, anterior view; B, left gonopod 1 posterior view; C, left gonopod 2 anterior view. Scale bars = 10 mm.
Figure 3 in Neglected refugia of biodiversity: mountainous regions in Mozambique and Malawi yield two novel freshwater crab species (Potamonautidae: Potamonautes)
Figure 3. Potamonautes namuliensis sp. nov. Male holotype (carapace length = 21.55 mm) from Manho forest 1500 m a.s.l., Mount Namuli, Zambézia Province, central Mozambique SAM A46796. A, whole animal dorsal aspect; B, whole animal ventral aspect; C, cephalothorax, frontal aspect. Scale bars = 10 mm.
Figure 2. A Bayesian phylogram for the combined 12S in Neglected refugia of biodiversity: mountainous regions in Mozambique and Malawi yield two novel freshwater crab species (Potamonautidae: Potamonautes)
Figure 2. A Bayesian phylogram for the combined 12S rRNA + 16S rRNA + COI mtDNA sequence data. Statistical values above the nodes represent values for bootstrapping for maximum parsimony (MP). Values below each node represent the posterior probability (pP) values for the Bayesian analyses. Only bootstrap values> 70% and pP values> 0.95 are shown.
Figure 1. A in Neglected refugia of biodiversity: mountainous regions in Mozambique and Malawi yield two novel freshwater crab species (Potamonautidae: Potamonautes)
Figure 1. A map showing the three sample sites in central and northern Mozambique and the one sample site in southern Malawi where freshwater crabs were collected.
Figure 5 in Neglected refugia of biodiversity: mountainous regions in Mozambique and Malawi yield two novel freshwater crab species (Potamonautidae: Potamonautes)
Figure 5. Potamonautes mulanjeensis sp. nov. Male holotype (carapace length = 25.38 mm) Madzeka hut 1800 m a.s.l., Mount Mulanje (form B, Fig. 2), southern Malawi, SAM A46799. A, whole animal dorsal aspect; B, whole animal ventral aspect; C, cephalothorax, frontal aspect. Scale bars = 10 mm.
Figure 6 in Neglected refugia of biodiversity: mountainous regions in Mozambique and Malawi yield two novel freshwater crab species (Potamonautidae: Potamonautes)
Figure 6. Potamonautes mulanjeensis sp. nov. male holotype, SAM A46799. A, left gonopod 1, anterior view; B, left gonopod 1 posterior view. Scale bars = 10 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
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International Brain Laboratory public data
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OpenNeuro
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