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opennotspecifiedAug 2016View details →

FIGURES 25–30. Medlinella amphoroidea. Type population, SEM. 25 in Medlinella amphoroidea gen. et sp. nov. (Bacillariophyta) from the neck skin of Loggerhead sea turtles (Caretta caretta)

FIGURES 25–30. Medlinella amphoroidea. Type population, SEM. 25. Valve with attached cingulum showing central tab (arrow) of valvocopula (v) with 11 additional copulae in side view. 26. Valve with attached partial cingulum in oblique view showing the pars interior of the septum of the second copula (c2). 27. Pars interior of valvocopula showing flanged margin, central tab on the pars interior, and septum located on the pars exterior. Arrow indicates open end of valvocopula. 28. Second septate copula with 2 attached additional copulae. Note smaller pores on copula 3 (arrow). 29. Copula of undetermined order showing partially developed septum (arrow). 30. Copula of undetermined order showing shallow septum (arrow). Scale bars: Figs 25–28 = 2 μm, Figs 29, 30 = 1 μm.

opennotspecifiedAug 2016View details →

FIGURES 11–18 in Medlinella amphoroidea gen. et sp. nov. (Bacillariophyta) from the neck skin of Loggerhead sea turtles (Caretta caretta)

FIGURES 11–18. Medlinella amphoroidea. Type population, SEM, external views. 11. Entire frustule in girdle view showing cingulum with 8 copulae visible. Single rows of pores are evident on the copulae. Note that the hypovalve with its attached valvocopula (not visible) is partially collapsed on the left side of the image towards the frustule interior. 12. Broken valve showing shape of longer valves. 13. Whole valve showing orientation of striae, eccentric raphe-sternum, and fascia. 14. Dorsal striae and valve apex showing raphe branch, hyaline area (arrow) on primary side of valve adjacent to the angularly hooked distal raphe end. 15. Detail of central area and valve apex on right side of specimen depicted in Figure 13 showing volate pore occlusions, spathulate and slightly deflected proximal raphe ends, and hooked distal raphe end. 16. Detail of valve apex on left side of specimen depicted in Figure 13 showing angularly hooked distal raphe end that points towards the ventral margin. 17. Whole valve in side view showing orientation of ventral striae and the extension of the fascia onto the valve mantle. 18. Whole valve in side view showing orientation of dorsal striae and a single shortened stria on the valve margin adjacent to the central area. "=" indicate the same specimen. Scale bars: Figs 11–13, 17, 18 = 2 μm, Fig. 14 = 0.5 μm, Figs 15, 16 = 1 μm.

opennotspecifiedAug 2016View details →

FIGURES 1–10 in Medlinella amphoroidea gen. et sp. nov. (Bacillariophyta) from the neck skin of Loggerhead sea turtles (Caretta caretta)

FIGURES 1–10. Medlinella amphoroidea. Type population, LM. 1–4. Frustules in girdle view showing size range and morphological variation. Arrows in Figs 2, 4, 7, 9 indicate septa. 5–10. Specimens in valve view showing size range. Scale bar = 5 μm.

opennotspecifiedFeb 2021View details →

Figure 2 in Species assemblage and distribution of turtle barnacles (Cirripedia: Coronuloidea) on foraging green sea turtles (Chelonia mydas) in the Persian Gulf

Figure 2. Distribution of Chelonibia testudinaria and Platylepas hexastylos on the carapace (a) and plastron (b) of foraging green sea turtles (Chelonia mydas) in southern Qeshm Island (eastern Persian Gulf). letters on the scutes of the top-left picture show: c) central scutes; l) lateral scutes; n) nuchal scute; s) supracaudal scutes; m) marginal scutes (all unmarked scutes between nuchal and supracaudals are marginal scutes). Letters on the scutes of the below-right picture show: i) intergular scute; g) gular scute; h) humeral scute; p) pectoral scute; ab) abdominal scute; f) femoral scute; a) anal scute; in) inframarginal scutes.

opennotspecifiedFeb 2021View details →

Figure 1 in Species assemblage and distribution of turtle barnacles (Cirripedia: Coronuloidea) on foraging green sea turtles (Chelonia mydas) in the Persian Gulf

Figure 1. Sampling site of green sea turtles (Chelonia mydas) on the southern coast of Qeshm Island, the Persian Gulf.

opennotspecifiedJan 2019View details →

Figure 2 in Repeated sampling adds to the genetic diversity of Lepidochelys olivacea (Eschscholtz 1829) olive ridley sea turtle

Figure 2. Map of sea turtle migration for five tagged olive ridley sea turtles nesting on Campamento Tortuguero La Gloria, Jalisco, Mexico. Sea turtles with haplotype MLK are observed swimming into the pelagic zone in a south-southwest direction, and along the coast (solid line). The single sea turtle with the haplotype MLN also swam in a south-southwest direction (dotted line).

opennotspecifiedJan 2019View details →

Figure 1. Haplotype network derived from 704 in Repeated sampling adds to the genetic diversity of Lepidochelys olivacea (Eschscholtz 1829) olive ridley sea turtle

Figure 1. Haplotype network derived from 704 bp mitochondrial D-loop fragment. Circle sizes are proportional to the frequency of each haplotype. The black circles are hypothetical haplotypes not sampled. Each colour represents the ocean basin where the sample was taken: blue is Pacific Ocean, yellow is Indian Ocean, red is Atlantic Ocean, and green is Indo-Pacific Ocean.

Figure 4 in Six degrees of separation in barnacles? Assessing genetic variability in the sea-turtle epibiont Stomatolepas elegans (Costa) among turtles, beaches and oceans

Figure 4. Map of Teopa Beach and vicinity, Jalisco, Mexico (García and Ceballos 1994, p. 109). Teopa Beach is adjacent to the Chamela-Cuixmala Biosphere Reserve.

Figure 5. Minimum spanning haplotype network derived from a 658 base-pair cytochrome c oxidase subunit I in Six degrees of separation in barnacles? Assessing genetic variability in the sea-turtle epibiont Stomatolepas elegans (Costa) among turtles, beaches and oceans

Figure 5. Minimum spanning haplotype network derived from a 658 base-pair cytochrome c oxidase subunit I (COI) fragment from 57 Stomatolepas elegans collected from nine different Lepidochelys olivacea nesting on Playa Teopa, Jalisco, Mexico, six S. elegans from Caretta caretta from the western Atlantic, and six S. praegustator from C. caretta from the western Atlantic. Circle sizes are proportional to the frequency of each haplotype, with haplotype 1 being most common. Coloured pie slices are also proportional, and represent the number of S. elegans from each turtle characterized by the respective haplotype. Colours represent the nine Mexican turtles randomly sampled for S. elegans populations. Open circles with numbers indicate Atlantic haplotypes. Solid black circles designate hypothetical missing haplotypes. The network includes S. elegans haplotypes 1–21, and S. praegustator haplotypes 19, 26–30. Haplotypes 1–17, shown in colour, represent Jalisco, Mexico specimens collected from nine different turtles in the Pacific, and haplotypes 18–21 and 26–30, shown as unshaded circles, represent southeastern United States Atlantic specimens collected from six different C. caretta (see Table 1).

Figure 3 in Six degrees of separation in barnacles? Assessing genetic variability in the sea-turtle epibiont Stomatolepas elegans (Costa) among turtles, beaches and oceans

Figure 3. Lateral view of Stomatolepas elegans (Costa) (YPM IZ 41655), from external neck skin of an olive ridley turtle, Teopa Beach, Careyes, Jalisco, Mexico. Diameter 8.5 mm.

Figure 2 in Six degrees of separation in barnacles? Assessing genetic variability in the sea-turtle epibiont Stomatolepas elegans (Costa) among turtles, beaches and oceans

Figure 2. Lateral view of neotype of Stomatolepas elegans (Costa) (YPM IZ 42775), from external neck skin of a loggerhead turtle Nova Scotia, Canada. Diameter 6.64 mm.

Figure 1 in Six degrees of separation in barnacles? Assessing genetic variability in the sea-turtle epibiont Stomatolepas elegans (Costa) among turtles, beaches and oceans

Figure 1. Lateral view of Stomatolepas praegustator Pilsbry (YPM IZ 47956), from inside the gullet of a loggerhead turtle, Wassaw Island, Georgia, USA. Diameter 7.36 mm.

Figure 4 in Motile homes: a comparison of the spatial distribution of epibiont communities on Mediterranean sea turtles

Figure 4. Diagrammatic representation of the different spatial patterns of the epibiont Chelonibia caretta found on loggerhead turtles and green turtles. (a) Total number of barnacles found for each scute; (b) mean basal area (mm2) of the barnacles for each scute; (c) percentage cover for individual scutes.

Figure 1 in Motile homes: a comparison of the spatial distribution of epibiont communities on Mediterranean sea turtles

Figure 1. Relative abundance of Chelonibia testudinaria on (a) loggerhead and (b) green turtles. Note: 47.4% and 69.7% of loggerhead and green turtles hosted no epibionts.

Figure 3 in Motile homes: a comparison of the spatial distribution of epibiont communities on Mediterranean sea turtles

Figure 3. Diagrammatic representation of the different spatial patterns of the epibiont Chelonibia testurdinaria found on loggerhead turtles and green turtles. (a) Total number of barnacles found for each scute; (b) mean basal area (mm2) of the barnacles for each scute; (c) percentage cover for individual scutes.

Figure 2 in Motile homes: a comparison of the spatial distribution of epibiont communities on Mediterranean sea turtles

Figure 2. Frequency histogram of barnacle maximum basal diameter (mm) of Chelonibia testudinaria on (a) loggerhead turtles (mean = 24.9, SD ± 10.6, range 5.7–55.0, n = 588); and (b) green turtles (mean = 16.9, SD ± 11.1, range 3.2–48.2, n = 178); and C. caretta on (c) loggerhead turtles (mean = 20.7, SD ± 8.5, range 5.3–44.5, n = 150); and (d) green turtles (mean = 10.3, SD ± 5.6, range 4.2–29.5, n = 42).

Figure 14. Pruned maximum credibility Bayesian trees. Dataset C in Redescription of the skull of the Australian flatback sea turtle, Natator depressus, provides new morphological evidence for phylogenetic relationships among sea turtles (Chelonioidea)

Figure 14. Pruned maximum credibility Bayesian trees. Dataset C based on the matrix from Evers & Benson (2019). Dataset D based on matrix from Evers & Benson (2019) with added characters found in this study. Colours at nodes represent base of clades. Numbers at the node show posterior probability value of node.

Figure 12 in Redescription of the skull of the Australian flatback sea turtle, Natator depressus, provides new morphological evidence for phylogenetic relationships among sea turtles (Chelonioidea)

Figure 12. Ventro-posterior-lateral view of Natator depressus (WAM R112123) (A) to highlight the foramen jugulare posterious, and Eretmochelys imbricata (WAM R120113) (B) for comparison. Displaying the states of character 2 based on the descriptor in the Appendix. Abbreviations: bas.con, basioccipital condyle; fn.po, fenestra postotica; for.ju.po, foramen jugulare posterious; for.mag, foramen magnum; for.ner.hyp, foramen nervi hypoglossi; fpcci, foramen posterior canalis cartotici. Scale bars = 20mm.

Figure 13. Maximum credibility Bayesian trees. Dataset A in Redescription of the skull of the Australian flatback sea turtle, Natator depressus, provides new morphological evidence for phylogenetic relationships among sea turtles (Chelonioidea)

Figure 13. Maximum credibility Bayesian trees. Dataset A based on the matrix from Evers & Benson (2019). Dataset B based on matrix from Evers & Benson (2019) with added characters found in this study. Different colours at nodes represent base of clades. Numbers at the node show posterior probability value of node.

Figure 10 in Redescription of the skull of the Australian flatback sea turtle, Natator depressus, provides new morphological evidence for phylogenetic relationships among sea turtles (Chelonioidea)

Figure 10. Antero-medial view of braincase of Natator depressus (WAM R112123) (A) and Lepidochelys olivacea (SAMA BM670) (B) showing the closed (A) and open (B) states of the medial foramen nervi acustici. Abbreviations: for.ner.ac, foramen nervi acustici; for.ner.hy, foramen nervi hypoglossi; hia.acu, hiatus acusticus. Scale bars = 20mm.