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91 results for “Valvatida”
Figure 3. Astrosarkus spp. from Australia. a in A new species of Astrosarkus from Western Australia including new Mesophotic occurrences of Indian Ocean Oreasteridae (Valvatida, Asteroidea)
Figure 3. Astrosarkus spp. from Australia. a, Astrosarkus sp. Northern Depths, Great Barrier Reef; b, Astrosarkus idipi from Coral Sea Marine Park. Distance between lasers is 10.0 cm.
Figure 7. Halityle regularis USNM 1688944 in A new species of Astrosarkus from Western Australia including new Mesophotic occurrences of Indian Ocean Oreasteridae (Valvatida, Asteroidea)
Figure 7. Halityle regularis USNM 1688944, Philippines, small individual. a, Abactinal view. Scale bar=0.5 cm; b, Close-up on armtips showing enlarged distal and superomarginal plates. Scale bar=0.2 cm; c, Close-up on abactinal-superomarginal contact showing spiny tubercles on superomarginals. Scale bar=0.2 cm; d, Lateral view showing spiny tubercles and large spines on superomarginal, inferomarginal plates. Scale bar=0.2 cm; e, Inferomarginal and superomarginal plates. Scale bar=0.2 cm; f, Actinal view. Scale bar=0.5 cm; g, Closeup oral region, adambulacral furrow. Scale bar=0.2 cm.
Figure 6. Culcita spp. a in A new species of Astrosarkus from Western Australia including new Mesophotic occurrences of Indian Ocean Oreasteridae (Valvatida, Asteroidea)
Figure 6. Culcita spp. a, Culcita novaeguineae in situ from Bowl Slide, Australia, 99 m. Courtesy of R/V Falkor, Schmidt Ocean Institute; b, Culcita schmideliana, USNM E37276, Abactinal view. Scale bar=2.0 cm; c, Actinal view. Scale bar=2.0 cm.
Figure 10 in A new species of Astrosarkus from Western Australia including new Mesophotic occurrences of Indian Ocean Oreasteridae (Valvatida, Asteroidea)
Figure 10. Poraster superbus variation. All scale bars=1.5 cm. a, USNM E45289 Abactinal; b, Actinal; c, USNM E 47401, Abactinal; d, Actinal.
Figure 2 in A new species of Astrosarkus from Western Australia including new Mesophotic occurrences of Indian Ocean Oreasteridae (Valvatida, Asteroidea)
Figure 2. Astrosarkus idipi. Maldives/Mayotte. a, Astrosarkus idipi (white/red form) from Mayotte, 75 m. Photo courtesy Thierry Mayotte; b, Astrosarkus idipi (white/red form) from Maldives. Photo courtesy Paris Stefanopoulis; c, Astrosarkus idipi (orange form) from St. Leu, Reunion Island. Photo by Patrick Plantard; d, Orange form with white highlights from Lifou Island, New Caledonia. Photo courtesy Laurent Ballesta.
Figure 11 in A new species of Astrosarkus from Western Australia including new Mesophotic occurrences of Indian Ocean Oreasteridae (Valvatida, Asteroidea)
Figure 11. Protoreaster lincki. MNHN IE-2007-3947. a, Abactinal view. Scale bar=1.5 cm; b, Abactinal-lateral view showing degree of spination and disk and arms. Scale bar=0.5 cm; c, Armtip showing carinal and superomarginal spines. Scale bar=1.0 cm; d, Actinal view. Scale bar=1.5 cm; e, Closeup of oral region and adambulacral spination. Scale bar=0.5 cm.
Figure 5. Choriaster granulatus a in A new species of Astrosarkus from Western Australia including new Mesophotic occurrences of Indian Ocean Oreasteridae (Valvatida, Asteroidea)
Figure 5. Choriaster granulatus a, In situ image from Comoros, 80 m. Image courtesy Comoros Biodiversity Project; b, In situ image from Maldives, 60–70 m. Image courtesy Maldives Ocean Research Expedition.
Figure 4 in A new species of Astrosarkus from Western Australia including new Mesophotic occurrences of Indian Ocean Oreasteridae (Valvatida, Asteroidea)
Figure 4. Astrosarkus lu n. sp. Scale unavailable. a, Abactinal view; b, Closeup showing spiny tubercles; c, Lateral view showing spiny tubercles on marginal plates; d, Lateral view; e, Actinal surface view; f, Closeup of oral region on actinal surface; g, Closeup of adambulacral armature, furrow spines, etc.
Figure 1 in A new species of Astrosarkus from Western Australia including new Mesophotic occurrences of Indian Ocean Oreasteridae (Valvatida, Asteroidea)
Figure 1. Astrosarkus idipi Maldives, specimen ID MAL1_330. a, Abactinal surface, specimen showing living coloration. Scale bar=4.0 cm; b, Abactinal surface of arm region. Scale bar=2.0 cm; c, Actinal surface, preserved specimen. Scale bar=4.0 cm; d, Actinal surface, oral region, closeup. Scale bar=1.0 cm; e, Actinal surface, showing furrow, adambulacral plates. Scale bar=2.0 cm.
Figure 9. Pentaceraster alveolatus USNM E37286 a in A new species of Astrosarkus from Western Australia including new Mesophotic occurrences of Indian Ocean Oreasteridae (Valvatida, Asteroidea)
Figure 9. Pentaceraster alveolatus USNM E37286 a, Abactinal view. Scale bar=2.0 cm; b, Abactinal-lateral view showing degree of spination along arm. Scale bar=0.5 cm; c, Abactinal-lateral view showing spination and superomarginal surface. Scale bar=0.5 cm; d, Actinal-lateral view showing marginal spination. Scale bar=0.5 cm; e, Actinal view. Scale bar=2.0 cm; f, Closeup of oral region and ambulacral spination. Scale bar=0.5 cm.
Figure 8. Halityle regularis USNM E45474 in A new species of Astrosarkus from Western Australia including new Mesophotic occurrences of Indian Ocean Oreasteridae (Valvatida, Asteroidea)
Figure 8. Halityle regularis USNM E45474, Somalia, larger individual. a, Abactinal view. Scale bar=1.5 cm. b, Closeup of armtip showing low tubercles on distal surface. Scale bar=0.8 cm; c, Lateral view showing superomarginal plates and low tubercles. Scale bar=0.5cm; d, Lateral view of armtip showing marginal plates, inferomarginal, superomarginal surface. Scale bar=0.5 cm; e, Actinal view. Scale bar=1.5 cm; f, Closeup of oral and adambulacral furrow. Scale bar=0.5 cm.
Figure 4. A in A new species of the genus Valvata (Gastropoda: Valvatidae) from Lake Lugu, southern China
Figure 4. A Bayesian inference (BI) tree based on the COI sequence. Values at nodes represent support values for BI and maximum likelihood (ML). Only values> 0.5 or 70 are shown.
Figure 2 in A new species of the genus Valvata (Gastropoda: Valvatidae) from Lake Lugu, southern China
Figure 2. Valvata succinea sp. nov. (A–D) Holotype, NNUYNLG001; (E, F) Paratype, NNUYNLG002; (G, H) Paratype, NNUYNLG003; (I, J) Opercula; (K, L) Dissection with labelled structures. Scale bar = 1mm (A–H); 0.5mm (I, J); 2mm (K); 1mm (L). Abbreviations: e, eye; p, penis; t, tentacle; mt, mantel tentacle; sn, snout; f, foot.
Figure 3 in A new species of the genus Valvata (Gastropoda: Valvatidae) from Lake Lugu, southern China
Figure 3. (A) Natural habitat and (B) color in life of Valvata succinea sp. nov. Photographs by Yue-Ming He, 9 April 2021, Lake Lugu, Yunnan Province, China.
FIG. 4. — A-D in A phylogeny of Iconaster and Glyphodiscus (Echinodermata, Asteroidea, Valvatida, Goniasteridae) with descriptions of four new species
FIG. 4. — A-D, Iconaster elegans Jangoux, 1981, paratype, dry (MNHN EcAs 2776); A, abactinal surface; B, glassy granules on superomarginals; C, enlarged accessories on abactinal plates, papular region; D, oral and adambulacral regions; E-G, Iconaster longimanus MÖbius, 1859, Singapore, dry (CASIZ 117905); E, abactinal surface; F, abactinal plates with glassy granules; G, oral and
FIG. 3. — A-C, Glyphodiscus magnificus n in A phylogeny of Iconaster and Glyphodiscus (Echinodermata, Asteroidea, Valvatida, Goniasteridae) with descriptions of four new species
FIG. 3. — A-C, Glyphodiscus magnificus n. sp., New Caledonia, paratype, dry (MNHN EcAs 11682); A, abactinal view; B, superomarginal plate shape; C, oral and adambulacral regions; D, E, Glyphodiscus pentagonalis n. sp., New Caledonia, holotype, dry (MNHN EcAs 11688); D, abactinal view; E, oral and adambulacral regions. Scale bars: A, 5.0 mm; B, D, 3.0 mm; C, 2.0 mm;
FIG. 1. — A, B in A phylogeny of Iconaster and Glyphodiscus (Echinodermata, Asteroidea, Valvatida, Goniasteridae) with descriptions of four new species
FIG. 1. — A, B, Glyphodiscus perierctus (Fisher, 1917), New Caledonia, juvenile, dry, R = 7.0 mm, r = 4.0 mm (MNHN EcAs 11686); A, abactinal surface; B, actinal surface; C, Pontioceramus grandis Fisher, 1911 (USNM IZ-40578), dry, ambulacrals expressing a large ambulacral head (character 28), absence of an overlapping flange on the ambulacral head (character 29), rounded waist surface (character 30), and fan-like flaps on the ambulacral base (character 31); D, Glyphodiscus pentagonalis n. sp., dry (MNHN EcAs 11690), ambulacrals expressing a small ambulacral head (28), an overlapping flange (29), a sharpened edge on the waist (30), and narrow flaps on the ambulacral base (31); E, Glyphodiscus magnificus n. sp., paratype (MNHN EcAs 11683), predatory marks (PM)
FIG. 2. — A-C in A phylogeny of Iconaster and Glyphodiscus (Echinodermata, Asteroidea, Valvatida, Goniasteridae) with descriptions of four new species
FIG. 2. — A-C, Glyphodiscus perierctus (Fisher, 1917), New Caledonia, SMIB 4, stn DW 61, dry (MNHN EcAs 11686); A, abactinal surface, larger specimen with roughened marginal plates; B, roughened superomarginal plate; C, ambulacral furrow, furrow spines, and adambulacral plates; D, E, Glyphodiscus mcknighti Rowe, 1989 (= G. perierctus), New Caledonia, SMIB 5, stn DW 104, dry (MNHN EcAs 11697); D, abactinal surface, smaller specimen with smooth marginal plates; E, actinal surface. Scale bars: A, B, D, E,
FIG. 5. — A-C, Iconaster vanuatuensis n in A phylogeny of Iconaster and Glyphodiscus (Echinodermata, Asteroidea, Valvatida, Goniasteridae) with descriptions of four new species
FIG. 5. — A-C, Iconaster vanuatuensis n. sp., Vanuatu, holotype, dry (MNHN EcAS 11680); A, abactinal view; B, abactinal plates with glassy granules; C, oral region showing enlarged spines and adambulacral-subambulacral region; D-G, Iconaster uchelbeluuensis n. sp., Philippines, paratype, dry (MNHN EcAs 11681); D, abactinal view; E, glassy granules on superomarginal plate; F, enlarged accessories on corners of abactinal plates; G, adambulacral plates displaying crowded furrow spines and subambulacral spines.
FIG. 6 in A phylogeny of Iconaster and Glyphodiscus (Echinodermata, Asteroidea, Valvatida, Goniasteridae) with descriptions of four new species
FIG. 6. — Phylogram of Iconaster + Glyphodiscus, plus outgroup taxa. Numbers with % above branches are bootstrap values (300 replicates). Single numbers below branches are Bremer support values. Lines shown in bold are ingroup taxa. Geographic and bathymetric range data shown to right of tree. Dotted line around Vanuatu indicates possible photic transmission to deeper depths (see Discussion). Abbreviation: OG, outgroup taxon. Scale bar: 5 changes.
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