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Photo Gallery » Species » Echinodermata (Echinoderms) » Echinoidea (sea urchins)
Echinothuriidae (ends of oral primary spines)
Echinothuriidae (ends of oral primary spines)
Description In all species of the echinothuriids the oral primary spines are equipped with a distal hoof. Distal end of oral spine of (a) Araeosoma coriaceum; (b) Araeosoma fenestratum; (c) Calveriosoma hystrix; (d) Hygrosoma luculentum [left to right].
Scales 2 mm. Author Mortensen, Theodor JPG file - 53.18 kB - 945 x 759 pixels added on 2011-02-231 292 viewsERMS taxaScan of drawing Calveriosoma hystrix (Thomson, 1872)checked Kroh, Andreas 2021-02-24Scan of drawing Araeosoma fenestratum (Thomson, 1872)checked Kroh, Andreas 2021-02-24Scan of drawing Echinothuriidae Thomson, 1872checked Kroh, Andreas 2021-02-24Scan of drawing Araeosoma coriaceum (A. Agassiz, 1879)checked Kroh, Andreas 2021-02-24Scan of drawing Hygrosoma luculentum (A. Agassiz, 1879)checked Kroh, Andreas 2021-02-24 From reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... Download full sizeDownload full size © 2011 Mortensen, Theodor
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