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1,434 results for “Hydrozoa”
Fig. 18. A in Aglaopheniid hydroids (Cnidaria: Hydrozoa: Aglaopheniidae) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program
Fig. 18. A. Macrorhynchia phoenicea (Busk, 1852), hydrotheca from sample MNHN-IK-2015-510. — B–D. Macrorhynchia disjuncta (Pictet, 1893), portion of stem (B), hydrotheca (C) and phylactocarp with gonotheca (D) from sample MNHN-IK-2015-513. Scale bars: A–C = 200 µm; D = 500 µm.
Fig. 14 in Aglaopheniid hydroids (Cnidaria: Hydrozoa: Aglaopheniidae) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program
Fig. 14. Lytocarpia pilosa sp. nov., from sample MNHN-IK-2015-524. A–C. Portion of stem seen frontally (A) and basally (B), and detached pseudophylactocarp (C). D. Hydrotheca. E. Costa of corbula. Scale bars: A–C, E = 500 µm; D = 200 µm.
Fig. 15 in Aglaopheniid hydroids (Cnidaria: Hydrozoa: Aglaopheniidae) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program
Fig. 15. Lytocarpia pseudoctenata sp. nov. A. Portion of stem. B–D. Hydrotheca (B) and details of its basal (C) and distal (D) parts, all seen laterally. E–F. Portion of the rachis of corbula, and costa with gonotheca (F). From samples MNHN-IK-2015-527 (C–D) and MNHN-IK-2015-528 (A–B, E–F). Scale bars: A, F = 500 µm; B–E = 200 µm.
Fig. 12. A–C in Aglaopheniid hydroids (Cnidaria: Hydrozoa: Aglaopheniidae) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program
Fig. 12. A–C. Lytocarpia fragilis sp. nov, fertile colony (A) and details of a corbula (B–C), all from sample MNHN-IK-2015-523 (holotype). — D–F. Lytocarpia pilosa sp. nov., fertile colony (D), portion of stem, showing proximal parts of pseudophylactocarps (E), and corbula (F), all from sample MNHN-IK-2015-524 (holotype). — G–H. Lytocarpia pseudoctenata sp. nov., fertile colony (G) and corbula (H), all from sample MNHN-IK-2015-527 (holotype). Scale bars: A, D = 1 cm; B, H = 1 mm; C, E = 500 µm; F = 2 mm; G = 2 cm.
Fig. 10 in Aglaopheniid hydroids (Cnidaria: Hydrozoa: Aglaopheniidae) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program
Fig. 10. Gymnangium expansum (Jäderholm, 1903). A. Diagrammatic illustration of the mode of branching of the stem: main (m. t.) and accessory (a. t.) tubes, primary (p. b.) and secondary (s. b.) branches with cladia. B–C. Stem internode with gonotheca (B) and detail (C), showing the nematotheca associated to the hydrocladial apophysis. Hydrothecae in lateral (D–E) and frontal (F) views, and detail of their base (G). H–K. Nematothecae: mesial with bifid (H) and quintuple (I) aperture; lateral with simple (J) and bifid (K) apertures. From samples MNHN-IK-2015-515 (B, C, E, G, H, J) and MNHN-IK-2015-516 (D, F, I, K). Scale bars: B, D–F = 200 µm; C, G–K = 100 µm.
Fig. 11. A in Aglaopheniid hydroids (Cnidaria: Hydrozoa: Aglaopheniidae) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program
Fig. 11. A. Lytocarpia brevirostris (Busk, 1852), hydrotheca from sample MNHN-IK-2015-514. — B–K. Lytocarpia fragilis sp. nov., from sample MNHN-IK-2015-523. A–B. Portions of stems in frontal (B) and dorsal (C) aspects. D–G. Hydrotheca seen laterally (D) and frontally (E), and details of its basal (F) and distal (G) parts, both in lateral view. H–I. Distal part of mesial nematotheca seen frontally (H) and apically (I). J–K. Two corbulacostae. Scale bars: B = 500 µm; A, D–E, J–K = 200 µm; C, F–I = 100 µm.
Fig. 9 in Aglaopheniid hydroids (Cnidaria: Hydrozoa: Aglaopheniidae) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program
Fig. 9. Cladocarpus pennatus sp. nov. (continued). A–E. Hydrothecae from different colonies seen in lateral view (A–D), to show variation in abaxial curvature, and proximalmost part of a hydrocladium seen frontally (E). F–G. Details of the basal (F) and distal (G) parts of a hydrotheca seen laterally. From samples MNHN-IK-2015-531 (C), MNHN-IK-2015-532 (A, E–G), MNHN-IK-2015-536 (D) and MNHN-IK-2015-539 (B). Scale bars: A–E = 200 µm; F–G = 100 µm.
Fig. 16. A in Aglaopheniid hydroids (Cnidaria: Hydrozoa: Aglaopheniidae) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program
Fig. 16. A. Lytocarpia cf. spiralis (Totton, 1930), colony from sample MNHN-IK-2015-546. — B. Lytocarpia subtilis sp. nov., colony and corbula (insert) from sample MNHN-IK-2015-525 (holotype). — C–D. Macrorhynchia phoenicea (Busk, 1852) (C), from sample MNHN-IK-2015-512, compared to M. disjuncta (Pictet, 1893) (D), from sample MNHN-IK-2015-513. — E–G. Macrorhynchia spiralis sp. nov., colonies from samples MNHN-IK-2015-519 (E, holotype) and MNHN-IK-2015-520 (F, one paratype), and medusoid gonophore (G) from former sample. Scale bars: A = 3 cm; B–F = 1 cm; B (insert) = 1 mm; G = 100 µm.
Fig. 8 in Aglaopheniid hydroids (Cnidaria: Hydrozoa: Aglaopheniidae) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program
Fig. 8. Cladocarpus pennatus sp. nov. (part). Portion of stem showing insertions of successive cladia (A) and details of apophysis with its associated nematothecae (B–C). Proximal portions of fertile cladia in frontal (D, with phylactocarp) and dorsal (E, phylactocarp on first cormidium not shown) aspects. Phylactocarp (F). Male (G) and female (H) gonothecae. Hydrotheca seen apically (I). From samples MNHN-IK-2015-532 (A–C), MNHN-IK-2015-533 (E, I), MNHN-IK-2015-537 (G) and MNHN-IK-2015-540 (D, F, H). Scale bars: G = 100 µm; A–F, H, I = 200 µm.
Fig. 7 in Aglaopheniid hydroids (Cnidaria: Hydrozoa: Aglaopheniidae) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program
Fig. 7. Cladocarpus partitus sp. nov., from sample MNHN-IK-2015-529. Portions from proximal (A, seen frontally; B, seen laterally) and distal (C, with insertion of phylactocarp) parts of stem. Hydrotheca seen laterally (D) and frontally (E), and details of its basal (F) and distal (G) parts; mesial nematotheca (H) seen frontally (left) and apically (right); internal septa in an apical view of the hydrotheca (I). Distal end of phylactocarp with two gonothecae (J). Scale bars: A–C = 500 µm; D–G, J = 200 µm; H, I = 100 µm.
Fig. 2. Aglaophenia howensis Briggs, 1918 in Aglaopheniid hydroids (Cnidaria: Hydrozoa: Aglaopheniidae) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program
Fig. 2. Aglaophenia howensis Briggs, 1918, from sample MNHN-IK-2015-544. A–B. Portion of a stem in frontal aspect (A) and of another stem in dorsal aspect (B). C–F. Two hydrothecae from one colony in lateral (C, F), frontal (D) and apical (E) views. G–I. A hydrotheca from another colony in lateral (G), frontal (H) and apical (I) aspects. Scale bars: A–H = 200 µm.
Fig. 1. A–B. Aglaophenia howensis Briggs, 1918 in Aglaopheniid hydroids (Cnidaria: Hydrozoa: Aglaopheniidae) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program
Fig. 1. A–B. Aglaophenia howensis Briggs, 1918, fertile cormoid (A) and corbula (B), both from sample MNHN-IK-2015-544. — C. Aglaophenia sinuosa Bale, 1888, cormoid from sample MNHN- IK-2015-545. — D–E. Cladocarpus asymmetricus sp. nov., fertile cormoid (D) and phylactocarp (E) from sample MNHN-IK-2015-530 (holotype). — F. Cladocarpus keiensis Schuchert, 2003, colony from sample MNHN-IK-2015-534. Scale bars: F = 2 cm; A, C–D = 1 cm; E = 1 mm; B = 500 µm.
Fig. 4. — A–B in Two new genera and nine new species of hydroids (Cnidaria: Hydrozoa) from off New Caledonia
Fig. 4. — A–B. Solenoscyphus candelabrum gen. et sp. nov. A. Portion of stem with basal parts of five cladia. B. Hydrotheca, showing internal projections of the perisarc. — C–D. Solenoscyphus decidualis gen. et sp. nov. C. Portion of stem with basal parts of two consecutive cladia. D. Hydrotheca. — E–G. Solenoscyphus striatus gen. et sp. nov. E. Portion of stem with basal part of a side branch. F. Hydrotheca, showing the characteristic striation of the perisarc. G. Operculum. Scale bars: A, C, E = 2 mm; B, D, F = 500 μm; G = 300 μm.
Fig. 3. A in Two new genera and nine new species of hydroids (Cnidaria: Hydrozoa) from off New Caledonia
Fig. 3. A. Solenoscyphus candelabrum gen. et sp. nov., colony silhouette (holotype). B. Solenoscyphus decidualis gen. et sp. nov., colony silhouette (holotype). C. Solenoscyphus striatus gen. et sp. nov., colony silhouette (holotype). Scale bars: A = 2 cm; B–C = 1 cm.
Fig. 1. A in Two new genera and nine new species of hydroids (Cnidaria: Hydrozoa) from off New Caledonia
Fig. 1. A. Caledoniana alata gen. et sp. nov., holotype (below) and paratype (above). B. Caledoniana decussata gen. et sp. nov., colony silhouette (part of holotype). C. Caledoniana microgona gen. et sp. nov., colony silhouette (holotype). The red arrows indicate the presence of gonothecae. Scale bars: 1 cm.
Fig. 2. — A–B in Two new genera and nine new species of hydroids (Cnidaria: Hydrozoa) from off New Caledonia
Fig. 2. — A–B. Caledoniana alata gen. et sp. nov. A. Portion of fertile stem (note gonotheca above) and basal part of a side branch, showing positions of hydrothecae. B. Hydrotheca. — C–D. Caledoniana decussata gen. et sp. nov. C. Portion of stem with first and second order side branches from region of colony with coplanar hydrothecae, showing their relative position. D. Hydrotheca. — E–G. Caledoniana microgona gen. et sp. nov. E. Portion of stem. F. Hydrotheca. G. Three gonothecae. Scale bars: A, C, E, G = 3 mm; B, D, F = 1 mm.
Fig. 4. ― A. Gonaxia crassicaulis Vervoort, 1993 in Notes on some sertulariid hydroids (Cnidaria: Hydrozoa) from the tropical western Pacific, with descriptions of nine new species
Fig. 4. ― A. Gonaxia crassicaulis Vervoort, 1993 (MUSORSTOM 4, Stn. DW205), portion of cladium. ― B–D. Gonaxia elegans Vervoort, 1993 (BATHUS 3, Stn. DW809). B. Portion of stem and basal part of a cladium. C. Two consecutive internodes with their hydrothecae. D. Portion of stem with male gonothecae. ― E–F. Gonaxia cf. errans Vervoort, 1993 (BATHUS 2, Stn. CP737). E. Distalmost portion of stem with basal parts of four hydrocladia. F. Two consecutive cladial internodes with their hydrothecae. ― G–J. Gonaxia plumularioides sp. nov. (BIOCAL, Stn. CP34). G. Distalmost part of a stem, showing the structure of internodes. H. Two consecutive cladial internodes with their hydrothecae. I. Stem hydrotheca. J. Axillar hydrotheca. Scale bars: A–B, D–E, G = 1 mm; C, F, H–J = 300 µm.
Fig. 2. ― A. Gonaxia amphorifera Vervoort, 1993 in Notes on some sertulariid hydroids (Cnidaria: Hydrozoa) from the tropical western Pacific, with descriptions of nine new species
Fig. 2. ― A. Gonaxia amphorifera Vervoort, 1993 (SMIB 6, Stn. DW127), portion of stem with cladium. ― B. Gonaxia ampullacea Vervoort, 1993 (BATHUS 4, Stn. DW914), portion of stem with cladia. ― C. Gonaxia compacta Vervoort, 1993 (BATHUS 4, Stn. DW923), portion of stem with cladium. ― D. Gonaxia intermedia Vervoort, 1993 (BATHUS 4, Stn. CP906), portion of stem with cladium. ― E. Gonaxia sinuosa Vervoort, 1993 (SMIB 4, Stn. DW40), portion of stem with cladia. Scale bar: A–E = 1 mm.
Fig. 23. Phylogenetic hypothesis for the Halopterididae Millard, 1962 in Plumularioid hydroids (Cnidaria: Hydrozoa) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program
Fig. 23. Phylogenetic hypothesis for the Halopterididae Millard, 1962. The species discussed in this study is highlighted in yellow, and the newly-produced sequence is in bold. Numbers at nodes represent BPP and BS, respectively, and are shown only when both BPP Ż 0.9 and BS Ż 75.
Fig. 18. Monostaechas fisheri Nutting, 1905 in Plumularioid hydroids (Cnidaria: Hydrozoa) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program
Fig. 18. Monostaechas fisheri Nutting, 1905, morphotype with shallower hydrothecae and longer lateral nematothecae: patterns of branching. Slender lines represent cladia, thicker lines show primary, secondary or tertiary stems; dots correspond to the hydrothecae.
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