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46 results for “Crangonyx”
FIGURE 5. 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 5. Crangonyx ephemerus n. sp.; Holotype female, St. Marks Headwaters Greenway, Leon County, Florida (UFID 52586), 6.21 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 11. 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 11. Crangonyx pseudoephemerus n. sp.; Holotype female, St. Marks Headwaters Greenway, Leon County, Florida (UFID 52591), 6.24 mm: A, upper lip; B, lower lip; C, maxilla 1 (outer plate spine-teeth enlarged); D, maxilla 2; E, maxilliped (inner plate apical margin enlarged). Scale bars represent 0.5 mm.
Figure 9 in Molecular and morphological analyses reveal a new hypogean species of amphipod in the genus Crangonyx Bate, 1859 (Crustacea: Crangonyctidae) within the floridanus species complex, from Suwannee County, Florida
Figure 9. Crangonyx stinei sp. n. allotype male, Wes Skiles Peacock Springs State Park, Suwannee County, Florida (UFIZ 70383), 5.27 mm: gnathopod 1 (palmar margin and dactyl enlarged) (a); gnathopod 2 (palmar margin and dactyl enlarged) (b); pereopod 5 (c); pereopod 6 basis posterior margin (d); pereopod 7 basis posterior margin (e). Scale bars = 1 mm (scale bar does not reference enlarged palmar margin and dactyl).
Figure 6 in Molecular and morphological analyses reveal a new hypogean species of amphipod in the genus Crangonyx Bate, 1859 (Crustacea: Crangonyctidae) within the floridanus species complex, from Suwannee County, Florida
Figure 6. Crangonyx stinei sp. n. holotype female, Wes Skiles Peacock Springs State Park, Suwannee County, Florida (UFIZ 70388), 5.57 mm: pereopod 3 (a); pereopod 4 (b); pereopod 5 (c); pereopod 6 (d); pereopod 7 (e). Scale bar = 1 mm.
Figure 2 in Molecular and morphological analyses reveal a new hypogean species of amphipod in the genus Crangonyx Bate, 1859 (Crustacea: Crangonyctidae) within the floridanus species complex, from Suwannee County, Florida
Figure 2. Crangonyx stinei sp. n. holotype female, Wes Skiles Peacock Springs State Park, Suwannee County, Florida (UFIZ 70388), 5.57 mm (a); allotype male, Wes Skiles Peacock Springs State Park, Suwannee County, Florida (UFIZ 70383), 5.27 mm (b). Holotype image taken within 24 hours of collection and before alcohol preservation; allotype image taken after extended period in 100% ethanol. Scale bar = 1 mm.
Figure 11 in Molecular and morphological analyses reveal a new hypogean species of amphipod in the genus Crangonyx Bate, 1859 (Crustacea: Crangonyctidae) within the floridanus species complex, from Suwannee County, Florida
Figure 11. Time–calibrated multi-locus phylogeny of selected members of Crangonyctoidea. Posterior probability is indicated by coloured squares at nodes (black> 0.99, grey = 0.85); blue bars indicate the 95% highest posterior density (HPD) interval of clade age. Inset: Crangonyx stinei sp. n., holotype female, Wes Skiles Peacock Springs State Park, Suwannee County, Florida (UFIZ 70388). Scale bar = 1 mm.
Figure 5 in Molecular and morphological analyses reveal a new hypogean species of amphipod in the genus Crangonyx Bate, 1859 (Crustacea: Crangonyctidae) within the floridanus species complex, from Suwannee County, Florida
Figure 5. Crangonyx stinei sp. n. holotype female, Wes Skiles Peacock Springs State Park, Suwannee County, Florida (UFIZ 70388), 5.57 mm: gnathopod 1 (palmar margin and dactyl enlarged) (a); gnathopod 2 (palmar margin and dactyl enlarged) (b); gnathopod 2 brood plate (c). Scale bar = 1 mm (scale bar does not reference enlarged palmar margin and dactyl).
Figure 4 in Molecular and morphological analyses reveal a new hypogean species of amphipod in the genus Crangonyx Bate, 1859 (Crustacea: Crangonyctidae) within the floridanus species complex, from Suwannee County, Florida
Figure 4. Crangonyx stinei sp. n. paratype female, Wes Skiles Peacock Springs State Park, Suwannee County, Florida (UFIZ 70387), 3.81 mm: upper lip (a); holotype female, Wes Skiles Peacock Springs State Park, Suwannee County, Florida (UFIZ 70388), 5.57 mm: lower lip (b); maxilla 1 (outer plate spineteeth enlarged) (c); maxilla 2 (d); maxilliped (inner plate apical margin enlarged) (e). Scale bars = 0.5 mm.
Figure 1 in Molecular and morphological analyses reveal a new hypogean species of amphipod in the genus Crangonyx Bate, 1859 (Crustacea: Crangonyctidae) within the floridanus species complex, from Suwannee County, Florida
Figure 1. Distribution of Crangonyx stinei sp. n. and other hypogean populations of C. floridanus sensu lato; inset showing type localities of floridanus complex species.
Figure 7 in Molecular and morphological analyses reveal a new hypogean species of amphipod in the genus Crangonyx Bate, 1859 (Crustacea: Crangonyctidae) within the floridanus species complex, from Suwannee County, Florida
Figure 7. Crangonyx stinei sp. n. holotype female, Wes Skiles Peacock Springs State Park, Suwannee County, Florida (UFIZ 70388), 5.57 mm: pleopod 1 (coupling hooks enlarged) (a); pleopod 2 coupling hooks (b); pleopod 3 coupling hooks (c); epimera 1–3 (d); uropod 1 (e); uropod 2 (f); uropod 3 (g); telson (h). Scale bars = 1 mm (a–f); 0.5 mm (g); 0.25 mm (h).
Figure 8 in Molecular and morphological analyses reveal a new hypogean species of amphipod in the genus Crangonyx Bate, 1859 (Crustacea: Crangonyctidae) within the floridanus species complex, from Suwannee County, Florida
Figure 8. Crangonyx stinei sp. n. allotype male, Wes Skiles Peacock Springs State Park, Suwannee County, Florida (UFIZ 70383), 5.27 mm: antenna 2 (calceoli enlarged) (a); Crangonyx stinei sp. n. paratype male, Wes Skiles Peacock Springs State Park, Suwannee County, Florida (UFIZ 70392), 3.5 mm: uropod 1 (b); uropod 2 (outer ramus enlarged) (d); uropod 3 (d); telson (e). Scale bars = 1 mm (a); 0.5 mm (b–d); 0.25 mm (e).
Figure 10 in Molecular and morphological analyses reveal a new hypogean species of amphipod in the genus Crangonyx Bate, 1859 (Crustacea: Crangonyctidae) within the floridanus species complex, from Suwannee County, Florida
Figure 10. Multi-locus Bayesian phylogeny of selected members of Crangonyctoidea based on a concatenation of the nuclear 18S, 28S, and mitochondrial 16S rDNA. Posterior probability is indicated by coloured hexagons placed at nodes (black 1.0, white 0.64–0.79). Results of species delimitations presented to right of tree. ASAP, assemble species by automatic partitioning; bPTP, Bayesian Poisson tree processes; GMYC, generalised mixed Yule coalescent. Inset: Crangonyx stinei sp. n., holotype female, Wes Skiles Peacock Springs State Park, Suwannee County, Florida (UFIZ 70388). Scale bar = 1 mm.
FIGURE 1 in Crangonyx islandicus sp. nov., a subterranean freshwater amphipod (Crustacea, Amphipoda, Crangonyctidae) from springs in lava fields in Iceland
FIGURE 1. Crangonyx islandicus sp. nov., female paratype, 6.2 mm, Vatnsvik. Habitus. Scale: 1 mm.
FIGURE 4 in Crangonyx islandicus sp. nov., a subterranean freshwater amphipod (Crustacea, Amphipoda, Crangonyctidae) from springs in lava fields in Iceland
FIGURE 4. Crangonyx islandicus sp. nov., female paratype, 6.2 mm, Vatnsvik. A, pereopod 3. B,
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.
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