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49 results for “Anthoathecata”
FIGURES 16 – 19 in Eudendrium caraiuru sp. n. (Hydrozoa; Anthoathecata; Eudendriidae) from the southeastern coast of Brazil
FIGURES 16 – 19. Eudendrium caraiuru sp. n. 16, general aspect of a stem; 17, oral view of the hydranth; 18, general aspect of hydranth; 19, hydranth base. Legend: e, groove. Scale bars: 1.0 mm (16); 100 m (17 – 18); 40 m (19).
FIGURES 9 – 15 in Eudendrium caraiuru sp. n. (Hydrozoa; Anthoathecata; Eudendriidae) from the southeastern coast of Brazil
FIGURES 9 – 15. Eudendrium caraiuru sp. n. 9, general aspect of the colony covered by debris. 10, oral view of the hydranth. 11, general aspect of the hydranth. 12, capsule of large microbasic euryteles. 13, primary polyp, derived from larval metamorphosis. 14, young hydranth encapsulated by perisarc. 15, degenerating hydranth. Legends: a, large microbasic euryteles on the hypostome; b, large microbasic eurytele pad on the body of the hydranth; c, perisarc involving hydranth; d, reduced tentacle. Scale bars: 1.0 mm (9); 200 m (10); 300 m (11,13 – 15); 10 m (12).
Figure 4A-I. Ectopleura exxonia. A in Five athecate hydroids (hydrozoa: anthoathecata) from south-eastern australia
Figure 4A-I. Ectopleura exxonia. A, proximal stem and hydrorhiza; B, hydranth with immature gonophores (after Watson, 1978); C, cluster of developing gonophores; D, developing gonophore at base of aboral tentacle; E, F, apical process on nearly mature gonophore; G, stenotele from aboral tentacle; H, stenotele from oral tentacle; I, heteroneme from tentacles. Scale bar: A, B, 1 mm, C, 0.2 mm, D, 0.3 mm, G−I, 10 µm.
Figure 3A-G. Eudendrium pennycuikae. A in Five athecate hydroids (hydrozoa: anthoathecata) from south-eastern australia
Figure 3A-G. Eudendrium pennycuikae. A, branch with hydranths; B, hydranth with extended tapering tentacles; C, developing female gonophores; D, mature female gonophores; E, cluster of male gonophores; F, eurytele from tentacles. Drawn from preserved material. Scale bar: A, 2 mm, B, 0.3 mm, C, D, E, 0.5 mm, F, 10 µm.
Figure 2A-G. Amphinema dinema. A in Five athecate hydroids (hydrozoa: anthoathecata) from south-eastern australia
Figure 2A-G. Amphinema dinema. A, hydrocaulus with extended hydranth and gonophores on hydrorhiza. B, contracted hydranth, C, corrugated hydrocaulus. D, nearly mature gonophore. E, newly released medusa, F, eurytele from tentacles, G, desmoneme from hypostome. Scale bar: A, B, E, 0.5 mm, C, 0.3 m, D, 0.2 mm, F, G, 10 µm.
Figure 6A-J. Pennaria wilsoni. A in Five athecate hydroids (hydrozoa: anthoathecata) from south-eastern australia
Figure 6A-J. Pennaria wilsoni. A, branch with extended hydranths; B, basal annulations of branch; C, capitate tentacles surrounding hypostome; D, developing female gonophore; E newly released released eumedusa with scattered nematocysts; F−H, stenoteles from oral and aboral tentacles; I, desmoneme from hypostome; J, microbasic mastigophore from aboral tentacles. Scale bar: A, 5 mm, B, D, E, 0.5, mm, C, 0.25 mm, F−J, 20 µm.
Figure 1A-D in Five athecate hydroids (hydrozoa: anthoathecata) from south-eastern australia
Figure 1A-D. Hydractinia gelinea sp. nov. Holotype (NMV F202870). A, hydranth with developing gonophores; B, mature gonophore with scattered nematocysts; C, undischarged heteroneme from hydranth body and gonophores; D, undischarged heteroneme from tentacles. Drawn from preserved material. Scale bar: A, 0.5 mm; B, 0.2 mm; C, D, 10 µm.
Figure 5 in Five athecate hydroids (hydrozoa: anthoathecata) from south-eastern australia
Figure 5. Pennaria wilsoni. In situ photograph of colony, Port Phillip Heads, depth 10 m, showing bushy growth habit (photograph by author). Scale bar: 5 cm.
Fig. 6 in DNA barcoding of some Pandeidae species (Cnidaria, Hydrozoa, Anthoathecata)
Fig. 6. Neoturris pileata, preserved specimen (MHNG-INVE-35522) from the Mediterranean, collected before 1895 and identified by C. Hartlaub. Note that the bell shape is not elongated as often seen in other illustrations (e.g. Fig. 7), but nevertheless lies within the range of variation for Mediterranean specimens. Moreover, the bell is somewhat flattened in this preserved sample.
Figure 4. Nematocysts. 4A in Lobataria newtoni gen. et sp. nov., (Hydrozoa, Anthoathecata, Tubulariidae) from southern Australia
Figure 4. Nematocysts. 4A: stenotele (i) from gonophore flange. 4B: stenotele (ii) from oral tentacles. 4C: stenotele (iii) from aboral tentacles. 4D: stenotele (iv) from tentacles. 4E: desmonene from tentacles. 4F: microbasic mastigophore from aboral tentacles. Scale bar: 10 μm.
Figure 3. 3A in Lobataria newtoni gen. et sp. nov., (Hydrozoa, Anthoathecata, Tubulariidae) from southern Australia
Figure 3. 3A: Blastostyle with gonophores in various stages of development. 3B: mature gonophore with lobate apical flanges, nematocysts and central protrusion. Scale bar: A, 1 mm; B, 0.5 mm.
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 1 in Notes on Candelabrum australe (Briggs, 1928) (Hydrozoa, Anthoathecatae)
Figure 1. Candelabrum australe. Laboratory photograph of partially extended hydranth Figure 2 A, female blastostyle with clusters on Ecklonia radiata thallus. A, capitate of tentacles and young and mature Figure 3 A, large desmoneme from body body tentacles; B, blastostyle tentacles; C, gonophores containing larvae. B, actinula tentacles. B, small desmoneme. C–F, mature gonophore. Scale bar: 2 cm. larva several hours after liberation. Scale stenoteles. G, large merotrichous isorhiza. bar: A, 2 mm; B, 0.5 mm. H, small?merotrichous isorhiza. I, mesotele. Scale bar: 30 μm.
Fig. 16. Leuckartiara longicalcar, n in DNA barcoding of some Pandeidae species (Cnidaria, Hydrozoa, Anthoathecata)
Fig. 16. Leuckartiara longicalcar, n. spec., living animal, height 13-18 mm, photographed by Kevin Lee off Los Angeles, California, USA. Note, this photograph is copyright protected and permission to use it here has been obtained by paying a royalty fee to the author and copyright holder Kevin Lee (www.diverkevin.com).
Fig. 13 in DNA barcoding of some Pandeidae species (Cnidaria, Hydrozoa, Anthoathecata)
Fig. 13. Catablema cf. multicirrata, living subadult specimen from Svalbard (sample DNA 1139), photo courtesy of Aino Hosia. Note the high number of tentacles, estimated about 140 combined with the moderate size of the bell.
Fig. 11 in DNA barcoding of some Pandeidae species (Cnidaria, Hydrozoa, Anthoathecata)
Fig. 11. Catablema vesicarium nodulosum, living medusa from Friday Harbor, WA, USA, bell height about 2 cm, the individual was used to obtain one of the DNA sequences of this study.
Fig. 10 in DNA barcoding of some Pandeidae species (Cnidaria, Hydrozoa, Anthoathecata)
Fig. 10. Neoturris breviconis, living individuals from Friday Harbor, USA. (A) Fully grown animal without apical process, height approximately 3-4 cm. (B) Tentacle bases, note abaxial spurs and the absence of ocelli. (C) Smaller animal than shown in A (not to scale) with an apical process. (D) Medusa of with dark pigment in gonad region. The H-form of the gonad-bearing part of the manubrium is rather characteristic, but only temporary as due to contraction. This H-shape of the gonads is reminiscent of some Leuckartiara species. (E) Same specimen as in D seen from aboral side. Note that the gonadal pits are more numerous and much better seen in this view.
Fig. 9 in DNA barcoding of some Pandeidae species (Cnidaria, Hydrozoa, Anthoathecata)
Fig. 9. COI maximum likelihood phylogenetic tree of Pandeidae species obtained with PhyML (GTR+G+I model) and based on 664 bp positions of the mitochondrial COI gene. Node-support values are bootstrap values of 100 pseudoreplicates (shown only if> 70%). For more details see text and Table 1. Samples based on the polyp stage are indicated, all others are medusa samples.
Fig. 12 in DNA barcoding of some Pandeidae species (Cnidaria, Hydrozoa, Anthoathecata)
Fig. 12. Catablema multicirratum, living medusa from Friday Harbor, WA, USA, bell size about 6.5 cm, about 100 tentacles. The individual was used to obtain the DNA sequences of this study (DNA 868, see Table 1). (A) Whole medusa. The circular spot on the apical process is an area where the epidermis is lost due to contact with the water-air interface. (B) Detail of stomach with gonad folds. (C) Detail of umbrella margin with tentacles.
Fig. 5 in DNA barcoding of some Pandeidae species (Cnidaria, Hydrozoa, Anthoathecata)
Fig. 5. Neoturris abyssi (=Neoturris pileata), living medusa from the Swedish coast, photo taken by Fredrik Pleijel and reproduced with the permission of the author. The manubrium is contracted, feigning a horizontal gonadal fold on the manubrium resembling the permanent one seen in some Leuckartiara species. This photo is copyright protected and it must not be reproduced without the consent of the author.
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