Echinoidea image


Hypselaster affinis (peristome + apical system)
Hypselaster affinis (peristome + apical system)
Description a. Peristome and adjacent plates: The labrum shows a distinct lip. b. Apical system: The genital plates are partly fused, the madreporite not extemding beyond the posterior ocular plates.
a. Scale 6 mm, b. Scale 4 mm. Author Schultz, Heinke JPG file - 72.91 kB - 988 x 494 pixels added on 2009-02-23172 viewsEchinoidea taxaScan of drawing Hypselaster affinis Mortensen, 1948checked Kroh, Andreas 2021-02-24From reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d... Download full sizeDownload full size © 2009 Schultz, Heinke
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