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397 results for “Echinoidea”
FIGURE 35. Luidia maculata A in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 35. Luidia maculata A. In situ, abactinal surface showing two color pattern variants. B. In situ observation of an individual with disk depressed into sediment feeding on unidentified prey. C–D. Predation on a sea cucumber, Holothuria leucospilota. Photographer: A–B: Sam King Fung Yiu C–D: Choi Kwong Wan.
FIGURE 24. Schizaster lacunosus dried test with spines. A. Aboral surface. B. Oral surface. C in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 24. Schizaster lacunosus dried test with spines. A. Aboral surface. B. Oral surface. C. Lateral view.
FIGURE 12. Salmacis spp. A. S. bicolor. Red color variant. B. S in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 12. Salmacis spp. A. S. bicolor. Red color variant. B. S. sphaeroides. In situ observation of S. sphaeroides. C. S. sphaeroides. Showing individuals scavenging on a dead fish. Photographer: A. Josy Lai; B. and C. Sam King Fung Yiu.
FIGURE 13. Temnopleurus reevesii A in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 13. Temnopleurus reevesii A. In situ showing abundance and spacing. B. feeding on moribund fish. C. Temnopleurus reevesii attacking Holothuria leucospilota. D. T. reevesii, attacking Salmacis sphaeroides. Photographer: Sam King Fung Yiu.
FIGURE 10. Paraselenia gratiosa A in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 10. Paraselenia gratiosa A. In situ under normal conditions. B. Individual with spines covered by Ophiactis brittle stars. Photographer: Sam King Fung Yiu.
FIGURE 11 in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 11. Stomopneustes variolaris Aquarium observation of a living individual. Photographer: Sam King Fung Yiu.
FIGURE 41. Gymnanthenea difficilis. Color variation. A in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 41. Gymnanthenea difficilis. Color variation. A. In situ, red color variant. B. In situ, mottled color variant. C. In situ, orange-white color variant. Photographer: Sam King Fung Yiu.
FIGURE 9. Heliocidaris crassispina. A in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 9. Heliocidaris crassispina. A. In situ observation of H. crassispina with strands of white tissue on spines. B. Observation of this species with jellyfish caught on spines. Photographer: Sam King Fung Yiu.
FIGURE 40. Culcita novaeguineae A in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 40. Culcita novaeguineae A. In situ showing abactinal surface. B. In situ, actinal surface. Photographer: Sam King Fung Yiu.
FIGURE 6. Echinothrix calamaris. Color morphotypes. A. Black and white spine form. B. White spine form. C in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 6. Echinothrix calamaris. Color morphotypes. A. Black and white spine form. B. White spine form. C. Banded spine form. Photographer: Sam King Fung Yiu.
FIGURE 4. Coelopleurus maculatus A in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 4. Coelopleurus maculatus A. In situ predation on Dendronephthya. B. Aboral view. C. Oral view. Photographer: Sam King Fung Yiu.
FIGURE 31. Astropecten polyacanthus. A in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 31. Astropecten polyacanthus. A. Abactinal view, in situ. B. Actinal view, in situ. C. Six-armed variant from Trio Island, abactinal view. D. Six armed variant actinal view. Photographer: Sam King Fung Yiu.
FIGURE 34 in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 34. Luidia longispina In situ observation, abactinal surface. Photographer: Sam King Fung Yiu.
FIGURE 8 in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 8. Echinostrephus molaris. In situ observation showing this species in a deep rock-face burrow. Photographer: Sam King Fung Yiu.
FIGURE 38. Anthenea chinensis USNM 3036. A. Abactinal. B. Abactinal-superomarginal closeup. C. Actinal. D in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 38. Anthenea chinensis USNM 3036. A. Abactinal. B. Abactinal-superomarginal closeup. C. Actinal. D. Closeup actinal surface. Scale bar: 10.0 mm=A, C. Scale bar: 5.0 mm=B, D.
FIGURE 37. Linckia and Ophidiaster armatus A in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 37. Linckia and Ophidiaster armatus A. In situ observation, O. armatus abactinal surface. B. Six rayed variant of O. armatus from Ninepin Islands, Hong Kong. C. In situ observation of L. laevigata. Photographer: A and C: Sam King Fung Yiu; B: Max Leung.
FIGURE 33. Persephonaster tenuis CASIZ 28462 in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 33. Persephonaster tenuis CASIZ 28462, vicinity of Hong Kong. A. Abactinal view. B. Closeup arm abactinal surface. C. Actinal surface. D. Closeup on actinal surface showing furrow spination and other spination.
FIGURE 2 in New Ecological Observations and Occurrence for Asteroidea and Echinoidea in Hong Kong
FIGURE 2. Eucidaris metularia. In situ image showing apical system and spines. Photographer: Josy Lai.
FIGURE 8. X-ray images showing internal structures. A in The test architecture of Clypeaster (Echinoidea, Clypeasteroida) and its phylogenetic significance
FIGURE 8. X-ray images showing internal structures. A, Clypeaster reticulatus Agassiz, 1863; NHM 1942.12.26.72. B, Clypeaster australasiae (Gray, 1851); NHM 1952.12.9.8. C, Clypeaster fervens Koehler, 1922; NHM 1948.12.9.17. D, Clypeaster japonicus Döderlein, 1885; NHM EE140012. E, Clypeaster rangianus Desmoulins, 1835; NHM 1957.7.2.48. F, Clypeaster rosaceus Linnaeus, 1758; NHM EE14011.
FIGURE 11 in The test architecture of Clypeaster (Echinoidea, Clypeasteroida) and its phylogenetic significance
FIGURE 11. Strict consensus tree that was found from parsimony analysis of the data matrix in the Appendix. Trees have a length of 42.25 steps, a consistency index of 0.53 and a retention index of 0.80. Mortensen's (1943) original supraspecific classification of Clypeaster species is indicated on the right.
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