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Photo GalleryEchinothurioida (oral primary spines)
Description Points of echinothurioid spines: Oral primary spines serving for locomotion: Left: Phormosoma bursarium: with a distally inflated skin sheath. Right: Araeosoma violaceum: with a hoof.No scale provided. JPG file - 155.61 kB - 1 200 x 1 719 pixels added on 2011-02-23483 viewsEchinoidea taxaScan of drawing Araeosoma violaceum Mortensen, 1903checked Kroh, Andreas 2021-02-24Scan of drawing Phormosoma bursarium A. Agassiz, 1881checked Kroh, Andreas 2021-02-24From reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... Download full size 
© 2011 Mortensen, Theodor
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