Echinoidea image


Atelostomata (oral plate pattern)
Atelostomata (oral plate pattern)
Description The two extant orders differ in the arrangement of the interambulacral plates posterior to the peristome that form the plastron: Left: Holasteroida: The elongated labrum (1) is connected to a single sternal plate (2) followed by two episternal plates. Right: Spatangoida: The narrow labrum (1) is connected to two enlarged sternal plates (2a/2b) followed by two episternal plates. The plastron carries large tubercles and strong spines specialized for locomotion within the sediment.
Scale 20 mm.
Author Schultz, Heinke JPG file - 411.56 kB - 3 050 x 1 486 pixels added on 2009-02-23186 viewsEchinoidea taxaScan of drawing Spatangoidachecked Kroh, Andreas 2021-02-24Scan of drawing Atelostomatachecked Kroh, Andreas 2021-02-24Scan of drawing Holasteroidachecked Kroh, Andreas 2021-02-24From reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d... Download full sizeDownload full size © 2009 Schultz, Heinke
Comment Comment (0)
[Add comment]


Disclaimer: Echinoidea does not exercise any editorial control over the information displayed here. However, if you come across any misidentifications, spelling mistakes or low quality pictures, your comments would be very much appreciated. You can reach us by emailing info@marinespecies.org, we will correct the information or remove the image from the website when necessary or in case of doubt.