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123 results for “Crangonyctidae”
Figure 3 from: Sidorov DA, Kovtun OA (2015) Synurella odessana, sp. n. (Crustacea, Amphipoda, Crangonyctidae), first report of a subterranean amphipod from the catacombs of Odessa and its zoogeographic importance. Subterranean Biology 15: 11-27. https://doi.org/10.3897/subtbiol.15.8820
Figure 3 - Synurella odessana sp. n.: male, 11.5 mm, holotype X42024/Cr-1541-FEFU: A head B epimera 1?3 C pleopod 3 D uropod 1 E uropod 2 F uropod 3 G telson. Scale bars 0.2 mm.
Figure 2 from: Sidorov DA, Kovtun OA (2015) Synurella odessana, sp. n. (Crustacea, Amphipoda, Crangonyctidae), first report of a subterranean amphipod from the catacombs of Odessa and its zoogeographic importance. Subterranean Biology 15: 11-27. https://doi.org/10.3897/subtbiol.15.8820
Figure 2 - Habitus of Synurella odessana sp. n., left side (preserved specimens): A male, 11.5 mm, holotype X42024/Cr-1541-FEFU B female, 9.0 mm, paratype X42025/Cr-1542-FEFU.
Figure 1 from: Sidorov DA, Kovtun OA (2015) Synurella odessana, sp. n. (Crustacea, Amphipoda, Crangonyctidae), first report of a subterranean amphipod from the catacombs of Odessa and its zoogeographic importance. Subterranean Biology 15: 11-27. https://doi.org/10.3897/subtbiol.15.8820
Figure 1 - Map showing the distribution of the dershavini-group in the Volga-Black Sea basin: 1 Synurella dershavini Behning, 1928 2 Synurella donensis Martynov, 1919 3 Synurella odessana sp. n. 4 Synurella osellai Ruffo, 1972.
Figure 5 from: Sidorov DA, Kovtun OA (2015) Synurella odessana, sp. n. (Crustacea, Amphipoda, Crangonyctidae), first report of a subterranean amphipod from the catacombs of Odessa and its zoogeographic importance. Subterranean Biology 15: 11-27. https://doi.org/10.3897/subtbiol.15.8820
Figure 5 - Synurella odessana sp. n.: male, 11.5 mm, holotype X42024/Cr-1541-FEFU: A antenna 2 B antenna 1 C upper lip D lower lip E maxilla 2 F maxilla 1 G mandible, left H mandible, right I mandible, palp J maxilliped. Scale bars 0.2 mm.
Figure 6 from: Taylor SJ, Niemiller ML (2016) Biogeography and conservation assessment of Bactrurus groundwater amphipods (Crangonyctidae) in the central and eastern United States. Subterranean Biology 17: 1-29. https://doi.org/10.3897/subtbiol.17.7298
Figure 6 - Human population density (2010 U.S. Census from the U.S. Census Bureau) by county with ranges for the eight Bactrurus species. For Bactrurus brachycaudus, Bactrurus hubrichti, and Bactrurus mucronatus, the range boundary has been interpreted as in Fig. 5.
Figure 1 from: Taylor SJ, Niemiller ML (2016) Biogeography and conservation assessment of Bactrurus groundwater amphipods (Crangonyctidae) in the central and eastern United States. Subterranean Biology 17: 1-29. https://doi.org/10.3897/subtbiol.17.7298
Figure 1 - Distribution of species of the genus Bactrurus (Amphipoda, Crangonyctidae) in relation to karst. Karst areas are based on Weary and Doctor (2014). Letters A–F (red arrows) are localities discussed in the body of the text.
Figure 5 from: Taylor SJ, Niemiller ML (2016) Biogeography and conservation assessment of Bactrurus groundwater amphipods (Crangonyctidae) in the central and eastern United States. Subterranean Biology 17: 1-29. https://doi.org/10.3897/subtbiol.17.7298
Figure 5 - Species ranges for the genus Bactrurus (Amphipoda, Crangonyctidae) in relation to pre-Pleistocene rivers of the mid-western United States. Shaded areas with thin dashed lines represent species ranges. For Bactrurus brachycaudus, Bactrurus hubrichti and Bactrurus mucronatus, the range boundary has been interpreted in light of these rivers. Heavy dashed line is maximum extent of Pleistocene glaciation.
Figure 4 from: Taylor SJ, Niemiller ML (2016) Biogeography and conservation assessment of Bactrurus groundwater amphipods (Crangonyctidae) in the central and eastern United States. Subterranean Biology 17: 1-29. https://doi.org/10.3897/subtbiol.17.7298
Figure 4 - Groundwater amphipod relationships modified after the maximum clade credibility diagram of Corrigan et al. (2014) with 95% highest posterior density intervals shown as gray bars, and with additional details of geological timeline following Cohen et al. (2013).
Figure 3 from: Taylor SJ, Niemiller ML (2016) Biogeography and conservation assessment of Bactrurus groundwater amphipods (Crangonyctidae) in the central and eastern United States. Subterranean Biology 17: 1-29. https://doi.org/10.3897/subtbiol.17.7298
Figure 3 - Land use within the ranges of the eight species of the genus Bactrurus. Based on the National Land Cover Database (Homer et al. 2015), collapsed into six categories (see Methods).
Figure 2 from: Taylor SJ, Niemiller ML (2016) Biogeography and conservation assessment of Bactrurus groundwater amphipods (Crangonyctidae) in the central and eastern United States. Subterranean Biology 17: 1-29. https://doi.org/10.3897/subtbiol.17.7298
Figure 2 - Distribution of species of the genus Bactrurus (Amphipoda, Crangonyctidae), overlain on a map of the maximum extent of Pleistocene glacial episodes derived from Fullerton et al. (2003). Letters A–F (red arrows) are localities discussed in the body of the text.
Figure 13 from: Niemiller ML, Cannizzaro AG, Sawicki TR, Culver DC (2024) A new species of Stygobromus Cope, 1872 (Amphipoda, Crangonyctidae) from a hypotelminorheic seepage spring in Washington, D.C., USA. Subterranean Biology 48: 117-146. https://doi.org/10.3897/subtbiol.48.112984
Figure 13 Median joining networks for nuclear loci (18s, 28s, and h3) generated in PopART v1.7.
Fig. 9 Crangonyx parhobbsi n in A new species rises from beneath Florida: molecular phylogenetic analyses reveal cryptic diversity among the metapopulation of Crangonyx hobbsi Shoemaker, 1941 (Amphipoda: Crangonyctidae)
Fig. 9 Crangonyx parhobbsi n. sp.; holotype female, Madison Blue Spring, Madison County, Florida (UFID 051869), 7.25 mm: A, pleopod 1 (coupling hooks enlarged); B, pleopod 2 coupling hooks; C, pleopod 3 coupling hooks; D, epimera 1–3; E, uropod 1; F, uropod 2; G, uropod 3; H, telson. Scale bars 1 mm (A, D) and 0.5 mm (E–G)
Fig. 4 in A new species rises from beneath Florida: molecular phylogenetic analyses reveal cryptic diversity among the metapopulation of Crangonyx hobbsi Shoemaker, 1941 (Amphipoda: Crangonyctidae)
Fig. 4 Principal component analysis (PCA) scatterplot based on 18 morphometric variables collected from Crangonyx parhobbsi n. sp. and populations of C. hobbsi Axes PC 1 (gnathopod 2 carpus length) and PC 2 (uropod 3 outer ramus length to peduncle length) explain 68% and 7.8% of variation, respectively. CCLC Coastal Central Lowland Clade, NSRBC Northern Suwannee River Basin Clade
Fig. 2 in A new species rises from beneath Florida: molecular phylogenetic analyses reveal cryptic diversity among the metapopulation of Crangonyx hobbsi Shoemaker, 1941 (Amphipoda: Crangonyctidae)
Fig. 2 Time-calibrated multilocus phylogeny of selected members of Crangonyctoidea. Posterior probability is indicated by colored diamonds (black 0.95–1.0, gray 0.94–0.90, white 0.89–0.80), blue bars indicate the 95% HPD interval of clade age. Results of species delimitations presented right of tree. ABDG Automatic Barcode Gap Discovery; bPTP Bayesian Poisson Tree Processes; GMYC generalized
FIGURE 10. Crangonyx pseudoephemerus n in Two new species of the genus Crangonyx Bate, 1859 (Amphipoda: Crangonyctidae) from the St. Marks River Basin with notes on the "Crangonyx floridanus complex "
FIGURE 10. Crangonyx pseudoephemerus n. sp.; Holotype female, St. Marks Headwaters Greenway, Leon County, Florida (UFID 52591), 6.24 mm: A, antenna 1 (aesthetasc enlarged); B, antenna 2; C, left mandible (palp omitted); D, right mandible (lacinia mobilis enlarged). Scale bars: 1 mm (A, B), 0.5 mm (C, D).
FIGURE 7. Crangonyx ephemerus n in Two new species of the genus Crangonyx Bate, 1859 (Amphipoda: Crangonyctidae) from the St. Marks River Basin with notes on the "Crangonyx floridanus complex "
FIGURE 7. Crangonyx ephemerus n. sp.; Holotype female, St. Marks Headwaters Greenway, Leon County, Florida (UFID 52586), 6.21 mm: A, epimera 1–3; B, uropod 1; C, uropod 2; D, uropod 3 (inner ramus enlarged); E, telson. Scale bars: 1 mm (A–C), 0.5 mm (D–E).
FIGURE 12. Crangonyx pseudoephemerus n in Two new species of the genus Crangonyx Bate, 1859 (Amphipoda: Crangonyctidae) from the St. Marks River Basin with notes on the "Crangonyx floridanus complex "
FIGURE 12. Crangonyx pseudoephemerus n. sp.; Holotype female, St. Marks Headwaters Greenway, Leon County, Florida (UFID 52591), 6.24 mm: A, gnathopod 1 (palmar margin and dactylus enlarged); B, gnathopod 2 (palmar margin and dactylus enlarged); C, pereopod 3. Scale bars represent 1 mm.
FIGURE 19 in Two new species of the genus Crangonyx Bate, 1859 (Amphipoda: Crangonyctidae) from the St. Marks River Basin with notes on the "Crangonyx floridanus complex "
FIGURE 19. Multi-locus Bayesian phylogeny of selected members of the Crangonyctoidea, based on a concatenation of the 18S rDNA and COI; 16S rDNA and 28S rDNA excluded as the sequences were not available for all species analyzed. Posterior probability is indicated by colored diamonds (black 0.90–1.0, gray 0.89–0.80, white 0.79–0.70).
FIGURE 18 in Two new species of the genus Crangonyx Bate, 1859 (Amphipoda: Crangonyctidae) from the St. Marks River Basin with notes on the "Crangonyx floridanus complex "
FIGURE 18. Multi-locus Bayesian phylogeny of selected members of the Crangonyctoidea, based on a concatenation of the 18S rDNA, 28S rDNA, and 16S rDNA; COI excluded as the sequence was not available for all species analyzed. Posterior probability is indicated by colored diamonds (black 1.0, gray 0.79). Results of species delimitations presented right of tree. Abbreviations: ABDG=Automatic Barcode Gap Discovery; bPTP=Bayesian Poisson Tree Processes; GMYC=Generalized Mixed Yule Coalescent.
FIGURE 15. Crangonyx pseudoephemerus n in Two new species of the genus Crangonyx Bate, 1859 (Amphipoda: Crangonyctidae) from the St. Marks River Basin with notes on the "Crangonyx floridanus complex "
FIGURE 15. Crangonyx pseudoephemerus n. sp.; Allotype male, St. Marks Headwaters Greenway, Leon County, Florida (UFID 52594), 4.16 mm: A, antenna 2 (single calceolus enlarged); B, gnathopod 1 (palmar margin and dactylus enlarged); C, gnathopod 2 (palmar margin and dactylus enlarged). Scale bars represent 1 mm.
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International Brain Laboratory public data
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OpenNeuro
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