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Photo GalleryOpechinus albus (coronal plates + apical system)
Description a. Ambulacral plates b. Interambulacral plates c. Apical system. The pits (spotted areas) are distinct and especially in the interambulacra, large and along the median suture confluent. The deep indentstions in the apical plates and the sharply offset distal parts give the apical disc a very peculiar shape.Scale 2 mm. JPG file - 154.39 kB - 1 525 x 589 pixels added on 2011-02-23160 viewsEchinoidea taxaScan of drawing Opechinus albus Mortensen, 1942checked 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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