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20 results for “Corymorpha”
Fig. 26. Corymorpha floridana n in Hydromedusae observed during night dives in the Gulf Stream
Fig. 26. Corymorpha floridana n. spec (A) Holotype, BFLA4371, bell height 3 mm. (B) 01-APR-2019; photographed but not collected; mature male, 2 mm. (C) 11-MAR-2020; photographed but not collected; 2 mm. (D) BFLA4363; bell height 2 mm. (E) BFLA4362; 2 mm; note that part of the long tentacle and the entire intermediate length tentacle are missing.
Figure 4. Cnidome, 4A in Corymorpha rubicincta, a new Hydroid (Hydrozoa, Anthoathecata, Corymorphidae) from Port Phillip, Australia
Figure 4. Cnidome, 4A, stenotele (i) from oral tentacles. 4B, stenotele (ii) from gonophores. 4C, stenotele (iii) aboral tentacles. 4D, stenotele (iv) from aboral tentacles and gonophores. 4E, stenotele (v) from oral tentacles. 4F, desmonene from oral and aboral tentacles, 4G, microbasic mastigophore. 4H, heterotrichous anisorhiza from aboral tentacles and gonophore. Scale bar, 20 μm.
Figure 3 in Corymorpha rubicincta, a new Hydroid (Hydrozoa, Anthoathecata, Corymorphidae) from Port Phillip, Australia
Figure 3 Blastostyle, two views showing developing gonophores. Scale bar, 1 mm.
Figure 1 in Corymorpha rubicincta, a new Hydroid (Hydrozoa, Anthoathecata, Corymorphidae) from Port Phillip, Australia
Figure 1. Corymorpha rubicincta, fertile hydranth, in situ image, depth 5 m.
Figure 2. Rooting filaments, drawn from paratype. Scale bar 5 in Corymorpha rubicincta, a new Hydroid (Hydrozoa, Anthoathecata, Corymorphidae) from Port Phillip, Australia
Figure 2. Rooting filaments, drawn from paratype. Scale bar 5 mm.
FIGURE 5. Corymorpha balssi Stechow, 1932. A in On some tropical hydroids (Cnidaria: Hydrozoa), with descriptions of four new species
FIGURE 5. Corymorpha balssi Stechow, 1932. A. Originally unpublished drawing of a fertile polyp by Stechow's graphist, W. Rössler. B. Close-up of a ready-to-detach medusa bud, seen laterally, to show the more developed capitate tentacle, the prominent opposite tentacle, and one of a pair of lateral, comparatively less-developed tentacles. C. Corymorpha bitungensis (Xu, Huang & Gou, 2013) as the putative mature medusa of C. balssi, redrawn after Lin et al. (2013: fig. 8). Scale bars: B = 500 µm; C = 1 mm.
FIGURE 3. Corymorpha balssi Stechow, 1932, preserved specimens. A. Hydranth. B. Hydrocaulus. C in On some tropical hydroids (Cnidaria: Hydrozoa), with descriptions of four new species
FIGURE 3. Corymorpha balssi Stechow, 1932, preserved specimens. A. Hydranth. B. Hydrocaulus. C. Detail of the upper, naked part of caulus, showing nematocyst clusters on epidermis and longitudinal, endodermal ridges. D. Junction between the upper and lower parts of caulus. E. More detailed view of the junction, showing distinct groove, as well as the presence of nematocyst clusters in the upper part, and their absence from the lower part. F. Cross-section through the upper part of caulus, to show the presence of endodermal ridges. Scale bars: E = 100 µm; C, D, F = 200 µm; A, B = 500 µm.
FIGURE 4. Corymorpha balssi Stechow, 1932, preserved specimens. A. Hydranth showing blastostyles bearing medusa buds. B in On some tropical hydroids (Cnidaria: Hydrozoa), with descriptions of four new species
FIGURE 4. Corymorpha balssi Stechow, 1932, preserved specimens. A. Hydranth showing blastostyles bearing medusa buds. B. Dissected blastostyle with medusa buds at various stages of development; largest bud ready to be liberated. C. Basal view of a medusa bud at two focus depths, to show the velum (left) and the tentacles with packed nematocysts (right); the capitate tentacle is above and the large, opposite tentacle is below; note the relative smaller size of the lateral tentacles compared to the latter. Scale bars: A–C = 200 µm.
FIGURE 12. Corymorpha tomoensis Ikeda, 1910, for comparison. A–C in Corymorpha tropica, a new species of anthoathecate hydrozoan (Cnidaria: Hydrozoa) from Southeast Asia
FIGURE 12. Corymorpha tomoensis Ikeda, 1910, for comparison. A–C. Putative polyps (ca. 4 cm high), in situ, from Kinko Bay, Kagoshima Prefecture, Japan, corresponding to the original account of the species. D. Putative medusa in the water column above a bottom inhabited by similar polyps, photographed in Osezaki, Shizuoka Prefecture, Japan. Photo credit: K. Horiguchi.
FIGURE 7 in Corymorpha tropica, a new species of anthoathecate hydrozoan (Cnidaria: Hydrozoa) from Southeast Asia
FIGURE 7. Fixed specimens of Corymorpha tropica, sp. nov. A, B. Newly-released medusae, observed with either a stereomicroscope in a petri dish (A) or a compound microscope, slightly squashed between slide and coverslip (B); note the adaxial position of the intermediate nematocyst clusters of the main tentacle. C. Apical view of umbrella, to show interradial pigmentary spots at the insertion of manubrium. D. Exumbrella with scattered nematocysts. E. Lateral view of the umbrella apex, showing the small, round-shaped apical projection, the insertion of the manubrium and its associated pigmentary spots, as well as the proximal parts of two radial canals. Scale bars: C–E = 100 µm; A, B = 300 µm.
FIGURE 4 in Corymorpha tropica, a new species of anthoathecate hydrozoan (Cnidaria: Hydrozoa) from Southeast Asia
FIGURE 4. Fixed specimens of Corymorpha tropica, sp. nov. A. Proximal tip of the caulus, showing rooting filaments (arrows). B. Basal papillae, from proximally digitiform to distally patch-like. C. Proximal part of the caulus showing longitudinal endodermal canals with lateral diverticuli ending in papillae; arrows point to the perisarc sheath. D. Junction (arrowhead) between the proximal, perisarc sheath-covered, papillary portion of the caulus, and the distal, naked, non-papillary part; arrows point to the perisarc sheath. Scale bar: A–D = 1 mm.
FIGURE 6 in Corymorpha tropica, a new species of anthoathecate hydrozoan (Cnidaria: Hydrozoa) from Southeast Asia
FIGURE 6. Fixed specimens of Corymorpha tropica, sp. nov. A. Distal part of a hydranth, showing the oral bunch of tentacles. B. Longitudinal section through the oral region, showing the dome-shaped hypostome and the internal folds at tentacle origins. C. Fully-fertile polyp, showing numerous blastostyles arising a short distance above the aboral whorl of tentacles. D. A blastostyle, highly magnified, showing clusters of medusa buds. Scale bars: B = 500 µm; A, C, D = 1 mm.
FIGURE 3 in Corymorpha tropica, a new species of anthoathecate hydrozoan (Cnidaria: Hydrozoa) from Southeast Asia
FIGURE 3. Close-ups of the living gonophores of Corymorpha tropica, sp. nov. Note colors of the medusa buds in life (C, D). Photo credit: A. Jakoblich (A, B), D. Johnson (C), R. Ang (D).
FIGURE 2 in Corymorpha tropica, a new species of anthoathecate hydrozoan (Cnidaria: Hydrozoa) from Southeast Asia
FIGURE 2. Additional in situ photographs of Corymorpha tropica, sp. nov. Note depigmented specimen (A), coloration of the hydranth (B, D), and profusion of medusa buds on the blastostyles (C, D). Photo credit: A. Jakoblich (A, C), D. Johnson (B), J. Johnson (D).
FIGURE 9 in Corymorpha tropica, a new species of anthoathecate hydrozoan (Cnidaria: Hydrozoa) from Southeast Asia
FIGURE 9. Cnidome of Corymorpha tropica, sp. nov. A–F. Polyp stage: unidentified capsules (A, C), desmoneme (B), stenoteles of S1 (D), S3 (E) and S4 (F) types. G–N. Medusa stage: spherical capsules from the exumbrella (G), unidentified capsules (H, J), desmoneme (I), stenoteles of four types, S1 (K), S2 (L), S3 (M), S4 (N). For details on the cnidome composition, see Table 1. Scale bar: A–N = 10 µm.
FIGURE 1 in Corymorpha tropica, a new species of anthoathecate hydrozoan (Cnidaria: Hydrozoa) from Southeast Asia
FIGURE 1. Corymorpha tropica, sp. nov. in situ, to show color variation in life; note the red, circular band at the hydranth base (C) and the newly-released medusa (D) (arrowheads). Photo credit: J. Johnson (A, B), D. Johnson (C, F) and A. Jakoblich (D, E).
FIGURE 11 in Corymorpha tropica, a new species of anthoathecate hydrozoan (Cnidaria: Hydrozoa) from Southeast Asia
FIGURE 11. Polyps of Corymorpha rubicincta Watson, 2008, in situ (Point Richards, Victoria, Australia), for comparison. Photo credit: A. Newton.
FIGURE 5 in Corymorpha tropica, a new species of anthoathecate hydrozoan (Cnidaria: Hydrozoa) from Southeast Asia
FIGURE 5. Fixed specimens of Corymorpha tropica, sp. nov. A. Cross section through the non-papillated part of caulus, to show endodermal canals (arrowheads). B. Upper part of caulus; note branched endodermal canals and distinct constriction at junction with the hydranth. C. Hydranth with gonophores. D. Longitudinal section through a hydranth, to show upper, hollow, digestive cavity, and lower, solid, non-digestive part, both separated by a transverse septum. Scale bar: A = 500 µm; B–D = 1 mm.
FIGURE 8 in Corymorpha tropica, a new species of anthoathecate hydrozoan (Cnidaria: Hydrozoa) from Southeast Asia
FIGURE 8. Fixed specimens of Corymorpha tropica, sp. nov. A. Cross section through the middle part of the manubrium. B. A medusa seen from below, to show the velum. C. An atentaculate marginal bulb. D. Dissected main tentacle, to show its capitations. E. The apical knob of nematocysts, showing clustered capsules. F. Intermediate nematocyst knob, showing clustered capsules restricted to one (adaxial) side. Scale bars: E, F = 50 µm; A, C, D = 100 µm; B = 200 µm.
FIGURE 10 in Corymorpha tropica, a new species of anthoathecate hydrozoan (Cnidaria: Hydrozoa) from Southeast Asia
FIGURE 10. Live specimen of Corymorpha bigelowi Maas, 1905 (ca. 5 mm high) from the Brunswick River mouth, New South Wales, Australia. A, B. Two views of a medusa. C. Detail showing the granulation of the radial canals. D. Close-up of the tentacles, showing their coloration. E. Capitate tentacle, greatly enlarged, showing its coiled posture. Photo credit: D. Riek.
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