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48 results for “Leptothecata”
FIGURE 6 in Revision of the genus Filellum Hincks, 1868 (Lafoeidae, Leptothecata, Hydrozoa)
FIGURE 6. Filellum contortum (Nutting, 1905). (A) General view of a colony growing on basal hydrocaulus of aglaopheniid host. (B) Detail of the distal end of hydrotheca with renovation. (C) Detail of the adnate and bent part of hydrotheca. (D) Detail of the distal end of hydrothecae with apertures. Scale bar: 500 µm (A); 300 µm (B, C, D).
FIGURE 5 in Revision of the genus Filellum Hincks, 1868 (Lafoeidae, Leptothecata, Hydrozoa)
FIGURE 5. Filellum adnatum (Fraser, 1925). (A) General aspect of the colony. (B) Hydrothecae, some with renovations. (C) Detail of one hydrotheca. Scale bar: 500 µm (A, B); 200 µm (C).
FIGURE 4 in Revision of the genus Filellum Hincks, 1868 (Lafoeidae, Leptothecata, Hydrozoa)
FIGURE 4. Filellum parasiticum (Antsulevich, 1987). (A) General view of the hydrorhiza and hydrothecae. (B) Detail of the hydrotheca with aperture, side view. Scale bar: 250 µm (A); 100 µm (B).
FIGURE 2 in Revision of the genus Filellum Hincks, 1868 (Lafoeidae, Leptothecata, Hydrozoa)
FIGURE 2. Filellum bouvetensis sp. nov. (A), (B) General side view of some hydrothecae of the colony. (C) Coppinia, side view. (D) Coppinia, apical view of gonothecae. Scale bar: 250µm (A); 500µm (B); 100µm (C, D).
FIGURE 3 in Revision of the genus Filellum Hincks, 1868 (Lafoeidae, Leptothecata, Hydrozoa)
FIGURE 3. Filellum disaggregatum Peña Cantero, García Carrascosa & Vervoort, 1998. (A) General side view of some hydrothecae of the colony. (B) Detail of the hydrotheca with renovations, side view. (C) Detail of the gonothecae with apertures. Scale bar: 200 µm (A); 100 µm (B, C).
FIGURE 1 in Revision of the genus Filellum Hincks, 1868 (Lafoeidae, Leptothecata, Hydrozoa)
FIGURE 1. Filellum adhaerens (Nutting, 1901). (A) Hydrotheca, side view. (B) Hydrotheca, inclined and oral view. (C) Coppinia, side view. (D) Detail of the protective tubes. (E) Detail of the distal half of the gonotheca, including aperture. Scale bar: 200µm (A); 150 µm (B); 300µm (C, D, E).
FIGURE 5 in New records of bathyal Leptolida (Cnidaria: Hydrozoa: Leptothecata) from the Bay of Biscay and the northwestern Iberian Peninsula (northeastern Atlantic)
FIGURE 5. Nemertesia falcicula (Ramil & Vervoort, 1992a). Station R1. A) Colony. B) Hydrocladia. C) Detail of the thecate internodes. D) Detail of hydrothecae and nematothecae. E) Gonotheca. Notice the long thecate internodes and the small hydrothecae. Scale bar: A= 1.0 cm; B= 500 µm; C, E= 200 µm; D= 100 µm.
FIGURE 4 in New records of bathyal Leptolida (Cnidaria: Hydrozoa: Leptothecata) from the Bay of Biscay and the northwestern Iberian Peninsula (northeastern Atlantic)
FIGURE 4. Pseudoplumaria marocana (Billard, 1930). A) Colony. B) Hydrocaulus with hydrocladia. C) First athecate and thecate internodes of a hydroclade, showing the well-developed mamelon. D) Two hydrocladial thecate internodes. Scale bar: A= 2.0 cm; B= 500 µm; C–D= 200 µm.
FIGURE 3. Zygophylax africana Stechow, 1923 in New records of bathyal Leptolida (Cnidaria: Hydrozoa: Leptothecata) from the Bay of Biscay and the northwestern Iberian Peninsula (northeastern Atlantic)
FIGURE 3. Zygophylax africana Stechow, 1923. Station DR06. A–C) Hydrothecae; note their tubular shape and the frequent renovations. D) Nematotheca. Scale bar: A–C=100 µm; D) 50 µm.
FIGURE 2. Zygophylax africana Stechow, 1923 in New records of bathyal Leptolida (Cnidaria: Hydrozoa: Leptothecata) from the Bay of Biscay and the northwestern Iberian Peninsula (northeastern Atlantic)
FIGURE 2. Zygophylax africana Stechow, 1923. Station DR06. A) Colony with coppinia. B) Main stem with two branches. C–D) Two images of the same coppinia. Gonothecae are polygonal in surface view, partially adpressed, and with two distal horns. Scale bar: A= 2000 µm; B= 500 µm; C–D= 1000 µm.
FIGURE 1A–G in Two bathyal hydroids (Hydrozoa: Leptothecata) from the Southwest Indian Ocean
FIGURE 1A–G Stegolaria laevigata sp. nov. 1A, branch of holotype colony. 1B, polysiphonic tubes of branch and monosiphonic hydrocladium. 1C, hydrotheca immersed in axial tubes, two intact opercular valves. 1D, hydrotheca on monosiphonic axial tube with shredded operculum and collapsed free adcauline wall. 1E, basal perisarcal lamella with anchoring spokes of tissue in hydrotheca. 1F, small and large heteroneme nematocysts. Scale bar: A, 10 mm. B, 2 mm. C, D, 0.5 mm. E, 0.2 mm. F, 20µm.
FIGURE 2. A–D Zygophylax crozetensis Millard, 1977. 2A in Two bathyal hydroids (Hydrozoa: Leptothecata) from the Southwest Indian Ocean
FIGURE 2. A–D Zygophylax crozetensis Millard, 1977. 2A, part of branch. 2B, hydrocladium. 2C, hydrotheca. 2D, nematotheca. Scale bar: A, 1.0 mm. B, 0.5 mm. C, 0.2 mm. D, 0.1 mm.
Figure 3 in A molecular phylogenetic appraisal of the systematics of the Aglaopheniidae (Cnidaria: Hydrozoa, Leptothecata) from the north-east Atlantic and west Mediterranean
Figure 3. Maximum likelihood phylogenetic analysis of the dataset containing all the 16S Aglaopheniidae sequences used in this study. Note that the part of the phylogenetic tree with all the branches of the Aglaophenia pluma complex is represented in a separate figure – Figure 5. Numbers near the nodes indicate the values of bootstrap (left) and posterior probabilities (right) in percentages. Values less than 70% are replaced by <; if equal to 100%, an asterisk is used instead. Values of bootstrap and posterior probabilities are omitted if both were less than 70% for the same node. The branch length indicator represents 0.1 substitutions per site.
Figure 5 in A molecular phylogenetic appraisal of the systematics of the Aglaopheniidae (Cnidaria: Hydrozoa, Leptothecata) from the north-east Atlantic and west Mediterranean
Figure 5. Part of the phylogenetic tree of Figure 3 with all the branches of the Aglaophenia pluma complex represented. Numbers near the nodes indicate the values of bootstrap (left) and posterior probabilities (right) in percentages. Values less than 70% are replaced by <; if equal to 100%, an asterisk is used instead. Values of bootstrap and posterior probabilities are omitted if both were less than 70% for the same node. The branch length indicator represents 0.1 substitutions per site.
Figure 4 in A molecular phylogenetic appraisal of the systematics of the Aglaopheniidae (Cnidaria: Hydrozoa, Leptothecata) from the north-east Atlantic and west Mediterranean
Figure 4. Hydrothecae of Aglaophenia species revealed as distinct by genetic data: A, Aglaophenia sp. 1 from deep waters of the Azores; B, Aglaophenia sp. 2 from coastal waters of Madeira. Scale bars = 0.1 mm. Credits: C. J. Moura.
Figure 2 in A molecular phylogenetic appraisal of the systematics of the Aglaopheniidae (Cnidaria: Hydrozoa, Leptothecata) from the north-east Atlantic and west Mediterranean
Figure 2. Map of the north-east Atlantic and west Mediterranean with representation of the sites with Aglaopheniidae haplotypes sampled specifically for this study.
Figure 1 in A molecular phylogenetic appraisal of the systematics of the Aglaopheniidae (Cnidaria: Hydrozoa, Leptothecata) from the north-east Atlantic and west Mediterranean
Figure 1. Examples of Aglaopheniidae colonies: A, Gymnangium montagui off Berlengas – west Portugal; B, Macrorhynchia philippina off Madeira island; C, undetermined Aglaophenia species off Madeira. Credits: C. J. Moura.
FIGURE 3 in Polysertularella polyseriata, a new genus and species of hydroid (Hydrozoa; Leptothecata; Sertulariidae) from the Sea of Okhotsk
FIGURE 3. Polysertularella polyseriata sp. nov. Hydrotheca (2 of the 4 valves shown opened).
Figure 2 from: Uribe-Palomino J, Pausina S, Gershwin L-A (2018) (2018) Two new species of Hydromedusae from Queensland, Australia (Hydrozoa, Leptothecata). ZooKeys 783: 17-36. https://doi.org/10.3897/zookeys.783.26862
Figure 2 Melicertissaantrichardsoni sp. n. Holotype QM G335899. A Habitus, ventral view B Detail of tentacle and cordylis C Lateral view. Scale bars: 1 mm (A, C); 200 µm (B).
Figure 3 from: Uribe-Palomino J, Pausina S, Gershwin L-A (2018) (2018) Two new species of Hydromedusae from Queensland, Australia (Hydrozoa, Leptothecata). ZooKeys 783: 17-36. https://doi.org/10.3897/zookeys.783.26862
Figure 3 Melicertissaantrichardsoni sp. n. A Paratype QM G335901, female specimen; note ova on gonads (arrows) B Paratype lot of two, QM G335904. Scale bar: 1 mm (A, B).
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OpenNeuro
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