Find research datasets worth reusing

FIGURE 5 in New records of family Hormathiidae (Cnidaria: Actiniaria) from Brazilian coast with description of Paraphelliactis labiata n. sp.

FIGURE 5. Cnidae of Paraphelliactis labiata n. sp. A) Robust spirocyst. B) Gracile spirocyst. C, D, F, H, I, K, L, M, N) Basitrichs. E, G, J) Microbasic p-mastigophore. Scale bar: 10 μm.

FIGURE 4 in New records of family Hormathiidae (Cnidaria: Actiniaria) from Brazilian coast with description of Paraphelliactis labiata n. sp.

FIGURE 4. External view and histology of Paraphelliactis labiata n. sp. A) Longitudinal section of the uppermost part of the column showing the marginal sphincter muscle (arrow). B) Cross section of a tentacle showing the ectodermal longitudinal musculature (arrow). C) Top view of the body, evidencing the oral disc and one of the two siphonoglyphs (arrow) D) Cross section of the column at actinopharynx level showing cycles of mesenteries (roman numbers), and unpaired mesentery of the fourth and fifth cycle (asterisk) E) Scheme of the mesenterial arrangement shown in D (mesenteries of fifth cycle indicated by asterisks). Abbreviations: Lm, longitudinal muscle; Me, mesoglea; Ms, marginal sphincter; Pa, parietobasilar muscle; Re, retractor muscle; S, siphonoglyph. Scale bars: A, D, 500 µm; B, 200 µm; C, 10 mm.

FIGURE 3 in New records of family Hormathiidae (Cnidaria: Actiniaria) from Brazilian coast with description of Paraphelliactis labiata n. sp.

FIGURE 3. External view of Paraphelliactis labiata n. sp. Holotype: A) Lateral view of the holotype. Note the distinct pedal disc coloration and its complete absence of tubercles. B) Oral view of the holotype revealing a pronounced flattening of the column due to the overlapping lobes. Paratypes: C) Detail of the oral disc of the medium-sized individual, showing small and large tubercles. D) Smaller paratype. Abbreviations: Od, oral disc; Tu, tubercles. Scale bars: A, B, 30 mm; C, 3 mm; D, 2 mm.

FIGURE 2. A in New records of family Hormathiidae (Cnidaria: Actiniaria) from Brazilian coast with description of Paraphelliactis labiata n. sp.

FIGURE 2. A) Paraphelliactis labiata n. sp., holotype. B) Monactis vestita on Drillia sp. empty shell. C) Phelliactis robusta. D) Phelliactis sp. Abbreviations: Mn, manganese nodule. Scale bars: A, 30 mm; B, 10 mm; C, 20 mm.

FIGURE 6 in New records of family Hormathiidae (Cnidaria: Actiniaria) from Brazilian coast with description of Paraphelliactis labiata n. sp.

FIGURE 6. External view and histology of the sea anemones in this paper. A, E–F) A, E–F) Phelliactis sp. A) Detail of the distended base holding a manganese nodule. B–C) Monactis vestita. B) Individual with base greatly distended, evidencing the arrangement of mesenteries. C) Cross section through the midcolumn, showing the four cycles of mesenteries (represented in roman letters). D) Individual of Phelliactis robusta attached to hexactinellid sponge fibers. E) Detail of the tubercles at distal column, near the oral disc. F) Cross section at the midcolumn showing a pair of mesenteries from the second cycle and the diffuse musculature of the retractor (arrows). Abbreviations: Re, retractor muscle. Scale bars: A and D, 10 mm; B, 5 mm; C, 0.5 mm; and E, 2 mm; F, 200 μm.

FIGURE 6 in Paraphelliactis tangi n. sp. and Phelliactis yapensis n. sp., two new deep-sea species of Hormathiidae (Cnidaria: Anthozoa: Actiniaria) from a seamount in the tropical Western Pacific

FIGURE 6. Internal anatomy of the holotype of Phelliactis yapensis n. sp. A. Cross section of a tentacle, showing aborally thickened mesogloea (M). B. Longitudinal section through part of marginal sphincter muscle (S). C. Cross section of mesenteries. R, retractors. Numbers indicate the cycles of mesenteries. D. Diagram of mesentery arrangement. Numbers indicate the cycles of mesenteries. D, directive mesentery pairs. Arrows indicate perfect mesenteries in the second cycle. Dots indicate undeveloped mesenteries. Asterisk indicates an additional mesentery pair in the fifth cycle. E. Transverse section through the oral disc of the holotype, note much thicker mesogloea over an endocoel (arrow). Scale bars = 0.5 mm (A–C, E).

FIGURE 3 in Paraphelliactis tangi n. sp. and Phelliactis yapensis n. sp., two new deep-sea species of Hormathiidae (Cnidaria: Anthozoa: Actiniaria) from a seamount in the tropical Western Pacific

FIGURE 3. Internal anatomy of Paraphelliactis tangi n. sp. A. Longitudinal section through the margin of the holotype, showing marginal sphincter muscle (S). B. Transverse section through the oral disc of the holotype, note much thicker mesogloea over an endocoel (arrow). C. Cross sections of mesenteries through the actinopharynx of the larger paratype, showing weak parietobasilar muscle (P), diffuse retractors (R) and oocytes (O). Numbers indicate the cycles of mesenteries. Scale bars = 0.5 mm (A, B) and 1 mm (C).

FIGURE 7. Cnidae from Phelliactis yapensis n in Paraphelliactis tangi n. sp. and Phelliactis yapensis n. sp., two new deep-sea species of Hormathiidae (Cnidaria: Anthozoa: Actiniaria) from a seamount in the tropical Western Pacific

FIGURE 7. Cnidae from Phelliactis yapensis n. sp. Tentacles: A. Robust spirocyst. B. Gracile spirocyst. C. Basitrich. D. Basitrich. Column: E. Basitrich. F. Basitrich. Actinopharynx: G. Basitrich. H. Basitrich. I. Microbasic p-mastigophore. Filament: J. Basitrich. K. Basitrich. L. Basitrich. M. Microbasic p-mastigophore. Acontia: N. Basitrich. O. Basitrich. Scale bar = 20 µm.

FIGURE 2 in Paraphelliactis tangi n. sp. and Phelliactis yapensis n. sp., two new deep-sea species of Hormathiidae (Cnidaria: Anthozoa: Actiniaria) from a seamount in the tropical Western Pacific

FIGURE 2. External morphology of Paraphelliactis tangi n. sp. A, B. The holotype in situ and in preservation. C. The larger paratype in preservation. Scale bars = 40 mm.

FIGURE 1 in Paraphelliactis tangi n. sp. and Phelliactis yapensis n. sp., two new deep-sea species of Hormathiidae (Cnidaria: Anthozoa: Actiniaria) from a seamount in the tropical Western Pacific

FIGURE 1. Distribution of Paraphelliactis tangi n. sp. and Phelliactis yapensis n. sp. as well as their congeners in the Western Pacific Ocean and Indian Ocean.

FIGURE 5 in Paraphelliactis tangi n. sp. and Phelliactis yapensis n. sp., two new deep-sea species of Hormathiidae (Cnidaria: Anthozoa: Actiniaria) from a seamount in the tropical Western Pacific

FIGURE 5. External morphology of Phelliactis yapensis n. sp. A. The holotype together with a paratype (Y30040) grasped the basalia of spongy pheronematid (Porifera: Hexactinellida: Amphidiscophora) in situ. B. Lateral view of the holotype. C. The other paratype (Y30064) attached to body of Aphrocallistidae (Porifera: Hexactinellida, Hexactinosida) in situ. D. Two individuals photographed near the holotype are likely conspecific to Phelliactis yapensis. Scale bar = 40 mm.

FIGURE 4. Cnidae from Paraphelliactis tangi n in Paraphelliactis tangi n. sp. and Phelliactis yapensis n. sp., two new deep-sea species of Hormathiidae (Cnidaria: Anthozoa: Actiniaria) from a seamount in the tropical Western Pacific

FIGURE 4. Cnidae from Paraphelliactis tangi n. sp. Tentacles: A. Robust spirocyst. B. Gracile spirocyst. C. Basitrich. D. Basitrich. Column: E. Basitrich. F. Basitrich. G. Microbasic p-mastigophore. Actinopharynx: H. Basitrich. I. Basitrich. J. Microbasic p-mastigophore. Filament: K. Basitrich. L. Basitrich. M. Microbasic p-mastigophore. Acontia: N. Basitrich. O. Basitrich. Scale bar = 20 µm.

FIGURE 2 in New records of the deep-sea anemone Phelliactis callicyclus Riemann-Zurneck, 1973 (Cnidaria, Actiniaria, Hormathiidae) from the Gulf of California, Mexico

FIGURE 2. Photographs of Phelliactis callicyclus Riemann-Zurneck, 1973. A) From the MIR submarines dives in the Guaymas Basin (from Sanamyan & Sanamyan 2007). B–F) From the JASON ROV dives at different dive locations, May 2008 cruise; note the two specimens in figure D.

FIGURE 1 in New records of the deep-sea anemone Phelliactis callicyclus Riemann-Zurneck, 1973 (Cnidaria, Actiniaria, Hormathiidae) from the Gulf of California, Mexico

FIGURE 1. Sites (a total of six) in the Gulf of California (red dots) where specimens of Phelliactis callicyclus Riemann- Zurneck, 1973, were captured in video or photographs during the ROV JASON dives in May 2008. Green dots correspond to sites where no specimens were detected. PB = Pescadero Basin; FB = Farallon Bassin; CB = Carmen Basin; WNFS, West Nayarit Fault Scarp.

Fig. 5 in Description of Calliactis tigris sp. nov.: reconciling taxonomy and phylogeny in hermit-crab symbiotic anemones (Cnidaria: Actiniaria: Hormathiidae)

Fig. 5 Micro-CT scans of Calliactis tlicolol (Le Sueur 1817) showing pairs of mesenteries in cross-section throughout length of column. a Cross section through distal column showing 48 pairs of mesenteries (distributed in 4 cy- cles); most mesenteries still con- nected to oral disc. b Cross section through distal column showing 48 pairs of mesenteries; note mesen- teries connected to oral disc and actinopharynx. c Cross section through distal column showing 48 pairs of mesenteries at actinopharynx level; note mesen- teries of first cycle partially con- nected to actinopharynx. d Cross section through mid-column showing 48 pairs of mesenteries. e Cross section through proximal column showing 48 pairs of mes- enteries. f Cross section through proximal column showing 57 pairs of mesenteries: 48 pairs plus nine pairs of 5th cycle (arrows). g Cross section through proximal column showing 62 pairs of mesenteries: 48 pairs plus 14 pairs of 5th cycle (arrows). h Cross section through proximal column showing 73 pairs of mesenteries: 48 pairs plus 25 pairs of 5th cycle (arrows). i Cross section through proximal column showing 82 pairs of mesenteries: 48 pairs of mesenteries plus 34 pairs of 5th cycle (arrow). Scale bars, a–i 5 mm

Fig. 1 in Description of Calliactis tigris sp. nov.: reconciling taxonomy and phylogeny in hermit-crab symbiotic anemones (Cnidaria: Actiniaria: Hormathiidae)

Fig. 1 Collection sites for Calliactis tiglis sp. nov. off the coast of Australia, including the type locality off the coast of New South Wales (star) and additional localities off the coast of New South Wales (triangles) and Queensland (circle)

Fig. 4 in Description of Calliactis tigris sp. nov.: reconciling taxonomy and phylogeny in hermit-crab symbiotic anemones (Cnidaria: Actiniaria: Hormathiidae)

Fig. 4 Cnidom of Calliactis tiglis nov. sp. a, b, f–k, m, n Basitrich. c, l P- mastigophore B1. d Gracile spirocyst. e Robust spirocyst

Fig. 2 in Description of Calliactis tigris sp. nov.: reconciling taxonomy and phylogeny in hermit-crab symbiotic anemones (Cnidaria: Actiniaria: Hormathiidae)

Fig. 2 External anatomy of preserved specimens of Calliactis tiglis sp. nov. a Oral view of a specimen with characteristic column coloration pattern. b Lateral view of a specimen attached to a shell; note remains of cuticle produced by pedal disc. c Two specimens attached to a single shell, one of which has lost part of its coloration pattern. d Lateral view of a specimen attached to a shell with hermit crab visible. e Detail of epidermal pits on proximal column; note white and purple epidermal pits. f Cinclides on proximal column (arrows). g Detail of a cinclide (arrow). Scale bars, a 50 mm, b 30 mm, c 21 mm, d 30 mm, e 1.6 mm, f 4 mm, g 2 mm

zenodo20/100

FIGURE 1 in New records of family Hormathiidae (Cnidaria: Actiniaria) from Brazilian coast with description of Paraphelliactis labiata n. sp.

FIGURE 1. Distribution of the hormathiid sea anemones recorded from deep sea in Southwest Atlantic Ocean, highlighting the Potiguar Basin, RN, Brazil with new records. *The occurrence of Phelliactis lophohelia is indicated as an interval due to the imprecise coordinate data given by the author (22º to 38°S according to Riemann-Zürneck 1973).