Sea urchin

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Wikispecies has an entry on:

Alive[编辑]

  • Paracentrotus lividus
    Paracentrotus lividus
  • Echinus Melo (water melon urchin) Alghero Sardinia
    Echinus Melo (water melon urchin) Alghero Sardinia
  • Arbacia lixula Croatia
    Arbacia lixula Croatia
  • Diadema antillarum
    Diadema antillarum
  • Strongylocentrotus purpuratus (Purple sea urchin)
    Strongylocentrotus purpuratus (Purple sea urchin)

Test (Skeleton)[编辑]

  •  Colobocentrotus atratus
     Colobocentrotus atratus
  •   Echinodiscus tenuissimus
      Echinodiscus tenuissimus
  • Echinus esculentus
    Echinus esculentus
  •   Paracentrotus lividus
      Paracentrotus lividus

Eggs[编辑]

Fossil[编辑]

  •  Acrosalenia hemicidaroides
     Acrosalenia hemicidaroides
  •  Micraster leskei
     Micraster leskei

Illustration[编辑]

  • Pluteus
    Pluteus
  • From "On the Genesis of Species"
    From "On the Genesis of Species"
  • Pedicellariae enlarged.
    Pedicellariae enlarged.

Video[编辑]

  • Time-lapse video of 16-cell purple urchin embryo

Divers[编辑]

取自“https://commons.wikimedia.org/w/index.php?title=Sea_urchin&oldid=527827206”