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18 results for “Subtropical Eastern Atlantic”
FIG. 14 in Revision of the genus Actinostella (Cnidaria: Actiniaria: Actinioidea) from tropical and subtropical western Atlantic and eastern Pacific: redescriptions and synonymies
FIG. 14. Cnidae of Actinostella flosculifera (Le Sueur, 1817). A, C, E, H, I, K, L, M, basitrichs; B, spirocysts; F, N, basitrichs S; D, G, J, P, p-mastigophore A; O, b-mastigophore; Q, p-mastigophore B1.
FIG. 8 in Revision of the genus Actinostella (Cnidaria: Actiniaria: Actinioidea) from tropical and subtropical western Atlantic and eastern Pacific: redescriptions and synonymies
FIG. 8. Internal anatomy of Actinostella californica (McMurrich, 1893). A, longitudinal section of the distal column showing distal verrucae (v), vesicles (ve) in the marginal ruff, marginal sphincter muscle (s), and the fosse; B, cross section at the actinopharynx level showing cycles of mesenteries and siphonoglyphs (si); numbers between pairs of mesenteries indicate the corresponding cycle; C, detail of the endodermal marginal sphincter muscle; D, cross section of a tentacle showing the ectodermal longitudinal muscles; E, detail of developing oocytes (o); F, detail of a cross section showing the retractor (r) and parietobasilar (p) muscles; G, cross section of proximal end showing the basilar muscles (r). Abbreviations: b, basilar muscles; ep, epidermis; ga, gastrodermis; me, mesoglea; o, oocytes; p, parietobasilar muscle; r, retractor muscle; s, sphincter; si, siphonoglyph; t, tentacle; v, verrucae; ve, vesicles. Scale bars: A, B, F, 0.5 mm; C–E, G, 0.1 mm.
FIG. 11 in Revision of the genus Actinostella (Cnidaria: Actiniaria: Actinioidea) from tropical and subtropical western Atlantic and eastern Pacific: redescriptions and synonymies
FIG. 11. Internal anatomy of Actinostella digitata (McMurrich, 1893). A, longitudinal section of the distal column showing distal vesicles (ve) in the marginal ruff, marginal sphincter muscle (s), and the fosse; B, cross section proximal to the actinopharynx level showing cycles of mesenteries, and the siphonoglyph (si); numbers between pairs of mesenteries indicate the corresponding cycle; C, detail of verrucae (v) in distal column; D, cross section of a tentacle showing ectodermal longitudinal muscles; E, detail of developing spermatic cysts (sc); F, detail of a cross section showing the retractor (r) and parietobasilar (p) muscles; G, cross section of proximal end showing weak basilar muscles (b). Abbreviations: b, basilar muscles; ep, epidermis; ga, gastrodermis; me, mesoglea; sc, spermatic cysts; p, parietobasilar muscle; r, retractor muscle; s, sphincter; si, siphonoglyph; t, tentacle; v, verrucae; ve, vesicles. Scale bars: A, F, 5mm; B–E, G, 1 mm.
FIG. 5 in Revision of the genus Actinostella (Cnidaria: Actiniaria: Actinioidea) from tropical and subtropical western Atlantic and eastern Pacific: redescriptions and synonymies
FIG. 5. External and internal anatomy of the holotype of Asteractis bradleyi Verrill, 1869 (YPM-1009) (= Actinostella bradleyi). A, lateral view of holotype, showing the marginal ruff; B, oral view of holotype; C, detail of the pedal disc of holotype; D, longitudinal section of the distal column showing distal verrucae (v), vesicles (ve) in the marginal ruff, marginal sphincter muscle (s), and the fosse; E, detail of the endodermal marginal sphincter muscle; F, detail of the verrucae in the distal column; G, cross section at the actinopharynx level showing the directive mesenteries, retractor muscle (r), and siphonoglyphs (si); H, detail of a pair of mesenteries of the third cycle showing the parietobasilar muscle (p); I, longitudinal section of proximal end showing basilar muscles (b). Abbreviations: b, basilar muscle; f, marginal ruff; p, parietobasilar muscle; r, retractor muscle; s, sphincter; si, siphonoglyphs; v, verrucae; ve, vesicle. Scale bars: A–C, 5 mm; D–I, 0.5 mm.
FIG. 3 in Revision of the genus Actinostella (Cnidaria: Actiniaria: Actinioidea) from tropical and subtropical western Atlantic and eastern Pacific: redescriptions and synonymies
FIG. 3. Internal anatomy of Actinostella bradleyi (Verrill, 1869). A, longitudinal section of the distal column showing distal verrucae (v), vesicles (ve) in the marginal ruff, marginal sphincter muscle (s), and the fosse; B, cross section at the actinopharynx level showing four cycles of mesenteries; numbers between pairs of mesenteries indicate the corresponding cycle; C, detail of the endodermal marginal sphincter muscle; D, cross section of a tentacle showing the ectodermal longitudinal muscles; E, detail of developing spermatic cysts (sc); F, detail of developing oocytes (o); G, detail of a cross section showing the retractor (r) and parietobasilar (p) muscles; H, cross section of proximal end showing the basilar muscles (b). Abbreviations: b, basilar muscles; ep, epidermis; ga, gastrodermis; me, mesoglea; o, oocytes; p, parietobasilar muscle; r, retractor muscle; s, sphincter; sc, spermatic cysts; t, tentacle; v, verrucae; ve, vesicles. Scale bars: A, B, G, H, 0.5 mm; C–F, 0.1 mm.
FIG. 12 in Revision of the genus Actinostella (Cnidaria: Actiniaria: Actinioidea) from tropical and subtropical western Atlantic and eastern Pacific: redescriptions and synonymies
FIG. 12. Cnidae of Actinostella digitata (McMurrich, 1893). A, B, D, F, G, H, J, K, basitrichs; C, spirocysts; L, basitrichs S; E, I, N, p-mastigophore A; M, b-mastigophore; O, p-mastigophore B1. Capsules depicted in K and O were found only in type specimens.
FIG. 9 in Revision of the genus Actinostella (Cnidaria: Actiniaria: Actinioidea) from tropical and subtropical western Atlantic and eastern Pacific: redescriptions and synonymies
FIG. 9. Cnidae of Actinostella californica (McMurrich, 1893). A, C, D, F, G, I, J, K, basitrichs; B, spirocysts; E, L, basitrichs S; H, N, p-mastigophore A; M, b-mastigophore; O, p-mastigophore B1.
FIG. 4 in Revision of the genus Actinostella (Cnidaria: Actiniaria: Actinioidea) from tropical and subtropical western Atlantic and eastern Pacific: redescriptions and synonymies
FIG. 4. Cnidae of Actinostella bradleyi (Verrill, 1869). A, C, E, H, I, K, L, M, basitrichs; B, spirocysts; F, N, basitrichs S; D, G, J, P, p-mastigophore A; O, b-mastigophore; Q, p-mastigophore B1.
FIG. 6 in Revision of the genus Actinostella (Cnidaria: Actiniaria: Actinioidea) from tropical and subtropical western Atlantic and eastern Pacific: redescriptions and synonymies
FIG. 6. Cnidae of holotype of Actinostella bradleyi (Verrill, 1869) (YPM-1009). A, C, E, H, I, K, L, M, basitrichs; B, spirocysts; F, N, basitrichs S; D, G, J, P, p-mastigophore A; O, b-mastigophore.
FIG. 1 in Revision of the genus Actinostella (Cnidaria: Actiniaria: Actinioidea) from tropical and subtropical western Atlantic and eastern Pacific: redescriptions and synonymies
FIG. 1. Geographic distribution of species of Actinostella.
FIGURE 3 in Distinctive morphological characteristics of Fucus guiryi (Fucales, Phaeophyceae) from Canary Islands, subtropical eastern Atlantic Ocean
FIGURE 3. Sections of branches of Fucus guiryi. A. Transverse section of branch at the level of the first dichotomy. Scale bar = 100 µm. B. Meristoderm and cortex. Scale bar = 20 µm. C. Medulla. Scale bar = 20 µm. Arrowhead shows abundant mucilage. Stained as above. Photos by M.A. Ruiz-Medina.
FIGURE 6 in Distinctive morphological characteristics of Fucus guiryi (Fucales, Phaeophyceae) from Canary Islands, subtropical eastern Atlantic Ocean
FIGURE 6. Transverse sections of receptacles of Fucus guiryi. A, B. Initial stages of conceptacle development. Scale bar = 20 µm. C–F. Mature conceptacles. Scale bar = 40 µm (asterisk = oogonia; arrow = antheridia; p = paraphysis; arrowhead = abundant mucilage). G, H. Oogonium with two visible oospheres and two antheridia with multiple antherozoids inside, respectively. Scale bar = 20 µm. I. Transverse section of sterile edge of receptacle. Scale bar = 40 µm. Stained as above. Photos by M.A. Ruiz-Medina.
FIGURE 5 in Distinctive morphological characteristics of Fucus guiryi (Fucales, Phaeophyceae) from Canary Islands, subtropical eastern Atlantic Ocean
FIGURE 5. Sections of branches of Fucus guiryi. A. Transverse section of branch at the level of the third dichotomy. Scale bar = 200 µm. B, C. Cortex and medulla in the marginal area of the branch, respectively. D. Cryptostomata. E. Intermediate zone between the margin and the central nerve. F, G. Medulla and cortex of central area, respectively. Scale bar = 20 µm. Arrowhead shows abundant mucilage. Stained as above. Photos by M.A. Ruiz-Medina.
FIGURE 2 in Distinctive morphological characteristics of Fucus guiryi (Fucales, Phaeophyceae) from Canary Islands, subtropical eastern Atlantic Ocean
FIGURE 2. Transverse sections of basal stipe of Fucus guiryi. A. Basal stipe with central nerve (right of red line) and an adventitious branch (left of red line). Scale bar = 100 µm. B. Transversal section of the apex of the adventitious branch. C. Transition zone between the nerve of the basal branch and the adventitious branch. D, E. Central zone of the medulla and the cortical zone of the basal branch. Scale bar = 20 µm. Arrowhead shows abundant mucilage. Stained using alcian blue and nuclear red. Photos by M.A. Ruiz-Medina.
FIGURE 1. A. A in Distinctive morphological characteristics of Fucus guiryi (Fucales, Phaeophyceae) from Canary Islands, subtropical eastern Atlantic Ocean
FIGURE 1. A. A scheme of morphological examination of Fucus guiryi. Red lines represent the cutting zone and red circles indicate the adventitious branches. B. Juvenile branches. C. Senescent branch. b = basal branch; a = adventitious branch; d1–d3 = dichotomy 1–3, respectively. Scale bar = 1 cm. Photos by M.A. Ruiz-Medina.
FIGURE 4 in Distinctive morphological characteristics of Fucus guiryi (Fucales, Phaeophyceae) from Canary Islands, subtropical eastern Atlantic Ocean
FIGURE 4. Sections of branches of Fucus guiryi. A. Transverse section of branch at the level of the second dichotomy. Scale bar = 200 µm. B, C. Cortex and medulla in the marginal area. D. Zone between the margin and the central nerve. E, F. Medulla and cortex of central area, respectively. Scale bar = 20 µm. Arrowhead shows abundant mucilage. Stained as above. Photos by M.A. Ruiz-Medina.
Figure 2 from: Riera R, Escanez A, González Á, Sierra Á (2012) On the occurrence of egg masses of the diamond-shaped squid Thysanoteuthis rhombus Troschel, 1857 in the subtropical eastern Atlantic (Canary Islands). A potential commercial species? ZooKeys 222: 69-76. https://doi.org/10.3897/zookeys.222.2835
Figure 2 - Some Thysanoteuthis rhombus egg masses recorded (numbers refer to descriptions in Table 1 and Figure 1).
Figure 1 from: Riera R, Escanez A, González Á, Sierra Á (2012) On the occurrence of egg masses of the diamond-shaped squid Thysanoteuthis rhombus Troschel, 1857 in the subtropical eastern Atlantic (Canary Islands). A potential commercial species? ZooKeys 222: 69-76. https://doi.org/10.3897/zookeys.222.2835
Figure 1 - Distribution of egg masses of Thysanoteuthis rhombus in Canary Islands. Triangles: literature records. Circles: new data (numbers refer to descriptions in Table 1).
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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