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123 results for “Crangonyctidae”
FIGURE 1 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 1. Distribution of Crangonyx ephemerus n. sp. and C. pseudoephemerus n. sp. A, Location of type locality, St. Marks Headwaters Greenway, in Leon County, Florida. B, Photograph of type locality, March 2018.
FIGURE 3. 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 3. Crangonyx ephemerus n. sp.; Holotype female, St. Marks Headwaters Greenway, Leon County, Florida (UFID 52586), 6.21 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 9. 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 9. Crangonyx ephemerus n. sp.; Allotype male, St. Marks Headwaters Greenway, Leon County, Florida (UFID 52587), 3.85 mm: A, pereopod 5 basis posterior margin; B, pereopod 6 basis posterior margin; C, pereopod 7 basis; D, uropod 1; E, uropod 2 (outer ramus comb-spines enlarged); F, uropod 3 (inner ramus enlarged); G, telson. Scale bars: 1 mm (A-E), 0.5 mm (F-G).
FIGURE 16. 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 16. Crangonyx pseudoephemerus n. sp.; Allotype male, St. Marks Headwaters Greenway, Leon County, Florida (UFID 52594), 4.16 mm: A, pereopod 5 basis posterior margin; B, pereopod 6 basis posterior margin; C, pereopod 7 basis; D, uropod 1; E, uropod 2 (outer ramus comb-spines enlarged); F, uropod 3 (inner ramus enlarged); G, telson. Scale bars: 1 mm (A–E), 0.5 mm (F–G).
FIGURE 8. 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 8. Crangonyx ephemerus n. sp.; Allotype male, St. Marks Headwaters Greenway, Leon County, Florida (UFID 52587), 3.85 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.
FIGURE 6. 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 6. Crangonyx ephemerus n. sp.; Holotype female, St. Marks Headwaters Greenway, Leon County, Florida (UFID 52586), 6.21 mm: A, pereopod 4; B, pereopod 5; C, pereopod 6; D, pereopod 7; E, pleopod 1 (coupling hooks enlarged); F, pleopod 2 coupling hooks; G, pleopod 3 coupling hooks. Scale bars represent 1 mm.
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.
Fig. 9 in Taxonomy of the spring dwelling amphipod Synurella ambulans (Crustacea: Crangonyctidae) in West Russia: with notes on its distribution and ecology
Fig. 9. Variability of (A) lateral cephalic lobe of Synurella ambulans (F. Müller, 1846) from different populations; (B) posterior margin of pereopod 7 basis; (C) epimera 2 and 3. (Digital Photomicrography).
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.
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