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Anthocidaris crassispina

(A. Agassiz, 1863)

Noriyuki Otani Anthocidaris crassispina? at Owase Mie Japan

Blogie Robillo Hi Noriyuki. Anthocidaris is a genus of echinoderms -- sea stars, sea cucumbers, sea urchins. This one is a nudibranch. "のウミウシの名前を調べてあげます。

Noriyuki Otani Thank you.

Blogie Robillo I'm guessing this might be a species of Ceratosoma, but not sure which one...

Andy Gray Almost certainly one of the Chromodorididae species but I don't know which one.

Noriyuki Otani I understand well. It was very helpful information.Thank you.

Blogie Robillo Noriyuki - Do you have other pictures of this animal? Other angles?

Noriyuki Otani Yes I have some pictures. but they are same angle.

Blogie Robillo I see. When identifying nudibranchs, it is often important to see the following body parts clearly: rhinophores, gills, oral tentacles, foot.

Blogie Robillo How long was this nudibranch, Noriyuki? And do you remember how deep it was where you found it?

Noriyuki Otani 3 or 4 cm. about 10m.

Noriyuki Otani Next time, I`ll take it from another angle.

Animalia (Kingdom)
  Echinodermata (Phylum)
    Echinozoa (Subphylum)
      Echinoidea (Class)
        Euechinoidea (Subclass)
          Carinacea (Infraclass)
            Echinacea (Superorder)
              Camarodonta (Order)
                Echinidea (Infraorder)
                  Odontophora (Superfamily)
                    Echinometridae (Family)
                      Anthocidaris (Genus)
                        Anthocidaris crassispina (Species)
Associated Species