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60 results for “Stylasteridae”
FIGURE 1. a in New record of Hydrozoa Distichopora violacea (Pallas, 1766) (Anthoathecata: Stylasteridae) from Andaman and Nicobar Islands, India
FIGURE 1. a, Location of Andaman and Nicobar Islands in the Indian Ocean. b, Survey sites—1. Craggy Island; 2. Rifileman Island; 3. Nancowry Island.
FIGURE 2 in New record of Hydrozoa Distichopora violacea (Pallas, 1766) (Anthoathecata: Stylasteridae) from Andaman and Nicobar Islands, India
FIGURE 2. Distichopora violacea (Pallas, 1766). a, In situ photograph of specimen. b, Coenosteum. Scale equals 2mm. c, Characteristic pore rows showing gastropores (Gp), and datylopore (Dp). Scale equals 500 µm. d, Ampulla (Ap). Scale equals 2mm.
FIGURE 13 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 13. Stylaster griseus (A, C, F, H, J, L–M, male paratype colony from PF13654, SAM H1460; B, D–E, G, K, indet. gender from PF13654, SAM H1460; I, female from MN SM179, SAM): A, stereo view of cyclosystems and male ampulla. B, a cyclosystem with a narrow diastema. C, several pseudosepta. D–E, reticulate-granular coenosteal texture. F, stereo view of gastrostyle and sphincter. G, gastrostyle. H–L, cross-section of dactylopore tubes showing various sizes of dactyloglossae. M, male ampullae.
FIGURE 17 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 17. Stenohelia venusta (A–J, female holotype, MN SM232, SAM; K, male paratype, MN SM232, SAM): A, unifacially arranged cyclosystems; B, a cyclosystem. C, stereo view of a cyclosystem showing some dactyloglossae. D–E, reticulate granular coenosteal texture. F, several pseudosepta. G, female ampullae. H, stereo view of an elongate gastropore tube and its gastrostyle. I, stereo view of a gastrostyle and its massive sphincter. J, stereo view of a dactyloglossa. K, stereo view of male ampullae.
FIGURE 20 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 20. Conopora tenuiramus (A–L, female holotype, MN SM228, SAM; M–N, male paratype, MN SM232, SAM): A, unifacially arranged cyclosystems. B–D, cyclosystems showing the regular placement of one nematopore per pseudoseptum (C is a stereo pair). E, nematopores on outer edges of each pseudoseptum. F, stereo view of double-chambered gastropore tube. G– I, linear-imbricate coenosteal texture. J, transition of linear-imbricate to smooth coenosteal texture. K, a single nematopore mound. L, female ampulla and efferent pore. M, transverse section though several male ampullae lodged in polynoid gall tube coenosteum. N, longitudinal section of male ampullae in polynoid gall tube coenosteum.
FIGURE 9 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 9. Errinopsis fenestrata from PF13479: A, stereo view of branch tips showing dactylopore spines. B, stereo view of prominent lower gastropore lip. C–D, dactylopore spines and linear-granular coenosteal texture. E, short conical dactylopore spine. F, taller dactylopore spine with slit-like dactylotome. G, stereo view of branch tip and gastrostyle tip. H, gastrostyle tip viewed from above. I, coenosteal texture (?ampullae).
FIGURE 6 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 6. Inferiolabiata lowei from PF907, female, SAM: A, branch segment. B, branch cross section. C–D, coenosteal texture. E–F, dactylopore spines (E is a stereo pair). G–J, broken dactylopore spines showing rudimentary multiple dactylostyles. K, longitudinal section of a gastropore showing a broken gastrostyle, tabulae and a diffuse ring palisade. L, stereo view of a gastropore and several truncated dactylopore spines. M, stereo view of two gastrostyles, diffuse ring palisade, and tabula.
FIGURE 3 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 3. Colonies of various species: A, Stenohelia venusta, holotype. B, Stenohelia spinifera, holotype. C, Conopora sola, holotype. D, Conopora verrucosa, Valdivia 104. E–F, Conopora tenuiramus, E, female paratype from PF14306; F, holotype. G–I, Crypthelia micropoma, UCTES SCD301 (H, male; I, female).
FIGURE 12 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 12. Stylaster bithalamus (A–B, D, F–I, MN SM185, SAM; C, E, female from UCTES AFR801, USNM 76534): A, stereo view of branch segment bearing lateral cyclosystems, polynoid gall tube to right. B, cyclosystems. C, reticulate-granular coenosteal texture. D, stereo view of gastropore tube, gastrostyle, and sphincter. E, stereo view of a cyclosystem showing one small dactyloglossa. F–G, large and small dactyloglossae, respectively. H–I,?male ampullae.
FIGURE 16 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 16. Stylaster kenti (A, C, F–G, male holotype, MN SM43, SAM; B, D–E, female paratype from MN SM43, SAM): A, stereo view of a cyclosystem and several male ampullae. B, stereo view of a cyclosystem. C, reticulate-granular coenosteal texture. D–E, various dactyloglossae (E a stereo pair). F, stereo view of a gastrostyle and sphincter. G, male ampullae.
FIGURE 5 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 5. Inferiolabiata africana (A–B, D–E, G–I, L, male paratype from MN SM134, SAM; C, F, J–K, female holotype from MN SM134, SAM): A, stereo view of a distal branch. B, dactylopore spines surrounding a gastropore. C, coenosteal texture. D–E, individual dactylopore spines. F–G, cross sections of dactylopore spines showing multiple dactylostyles. H, stereo view of a gastrostyle tip and diffuse ring palisade. I, L view of a gastrostyles with stabilizing tabulae (I is a stereo view). J, stereo view of male ampullae. K, female ampulla and efferent pore.
FIGURE 8 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 8. Errina capensis (A, C–F, I–J, female from MN XX129, SAM; B, G–H, K, male from PF13476, SAM H1228): A, stereo view of branch segment showing gastropores and dactylopore spines. B, stereo view of gastrostyle tips and diffuse ring palisade. C, female ampulla and branch surface. D–E, dactylopore spines showing basal platform and lateral dactylostyles. F, ring palisade elements. G, stereo view of gastrostyle tip, ring palisade, and imbricate coenosteal texture. H, radial-imbricate coenosteal texture. I, gastrostyle. J, stereo view of female ampulla and lateral efferent pore. K, stereo view of several male ampullae, and serrated edged dactylopore spines.
FIGURE 2 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 2. Colonies of various species: A–B, Stylaster bithalamus, MN SM185, male, anterior and posterior views of same colony, respectively. C, Stylaster griseus, holotype. D–F, Stylaster amphiheloides, syntypes, BM1842.12.2.79. G–H, Stylaster amphiheloides, MN SM228, posterior and anterior views of same colony. I, Stylaster lonchitis, Liltved specimen. J, Stylaster kenti, holotype.
FIGURE 15 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 15. Stylaster lonchitis collected by Liltved, female, USNM 1189355: A, stereo view of two cyclosystems. B, cyclosystem with a broad diastema. C, porous pseudosepta. D–E, ridged linear-granular coenosteal texture. F, conical nematopore tubes. G, dactylostyle elements. H, stereo view of gastropore tube and gastrostyle. I, gastrostyle and ring palisade. J, female ampulla.
FIGURE 4 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 4. Lepidopora diffusa (A–D, F–G, paralectotype from UCTES SCD296, USNM 96200; E, H–I, PF13654, USNM 76395): A, branch tip. B, longitudinal section of branch showing axial gastro- and dactylopores. C, stereo view of gastropore lip and conical dactylopore spines. D, branch cross section showing axial gastro- and dactylopores. E, granular coenosteal texture. F, stereo view of a gastrostyle. G, a dactylopore spine. H, a gastropore lip. I, stereo view of an internal male ampulla.
FIGURE 14 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 14. Stylaster amphiheloides (A, male syntype, USNM 85785; B, E–F, H–J, female from PF2819A, SAM H1462; male from K–L, MN SM328, SAM): A, stereo view of a cyclosystem. B–C, reticulate-granular coenosteal texture. D, stereo view of a damaged cyclosystem showing some dactyloglossae. E–F, dactyloglossae. G, stereo view of a gastrostyle from above. H, stereo view of a gastrostyle and sphincter. I, elongate gastrostyle and sphincter. J, longitudinal fracture of gastropore tube showing a female efferent pore. K–L, male ampullae.
FIGURE 11 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 11. Stylaster subviolaceus (A–F, H–I, male from PF15675, SAM; G, J – L, male from UCTES TRA151, USNM 76533): A, stereo view of branch segment with cyclosystems and male ampullae. B, stereo view of a cyclosystem and adjacent male ampulla. C–E, reticulate-smooth coenosteal texture. F–G, dactylostyle elements. H, gastropore tube missing its gastrostyle but showing the ring palisade. I, elongate ring palisade elements. J, branch cross section showing internal male ampullae. K, stereo view of gastrostyle and internal male ampulla. L, stereo view of a gastrostyle.
FIGURE 7 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 7. Inferiolabiata spinosa (A–G, male from PF13654, SAM; H, female from MN SM163, SAM): A, stereo view of branch tip showing dactylopore spines and a gastrostyle. B, dactylopore spines. C, imbricate coenosteal texture. D, stereo view of gastrostyle and diffuse ring palisade. E, dactylopore spine. F, dactylopore spines showing multiple dactylostyles. G, stereo view of dactylopore spines and a male ampulla with apical efferent pore (left). H, female ampullae and efferent pore, upper one ruptured.
FIGURE 1 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 1. Colonies of various species: A–B, Lepidopora diffusa, PF13654. C, Inferiolabiata africana, holotype. D, Inferiolabiata lowei, PF907. E, Inferiolabiata spinosa, Anton Bruun 420A. F, Errina capensis, syntype, Manchester Museum. G, Errina capensis, MN XX129, female. H, Gyropora africana, BM 1977.8.5.1. I, Stylaster nobilis, PF7014, 3 distal branches. J, Stylaster subviolaceus, PF15675.
FIGURE 10 in Stylasteridae (Cnidaria, Hydrozoa, Filifera) from South Africa
FIGURE 10. Stylaster nobilis (A–C, I, K, L, female form PF7014, USNM 76531; E–F, J, M, male from UCTES TRA32, USNM 76532; D, G, H, male from PF7014, USNM 76531): A, branch segment with numerous cyclosystems, a ruptured female ampulla, and numerous nematopores. B, a cyclosystem. C–D, reticulate-smooth coenosteal texture. E–G, gastrostyles and diffuse ring palisade (E is a stereo pair). H, spines on gastrostyle. I, dactylostyle elements. J, M, branch cross section with gastrostyles and internal male ampullae (M is a stereo pair). K, superficial female ampulla. L, stereo view of ruptured female ampulla.
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