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Pourtalesiidae (lateral + ventral)
Pourtalesiidae (lateral + ventral)
Description Lateral (1.) and ventral (2.) view of pourtalesiids: a. Pourtalesia jeffreysi Wyville Thomson: The posterior end is strongly rostrate and ringed by a subanal fasciole; length 20-30 mm (after B. David 1983). b. Ceratophysa: The test is very broad, ending in a rostrum; length 98 mm (after B. David 1984). c. Echinosigra phiale: The anterior part of the test is elongated; length approximately 25 mm (after B. David 1984).Author Schultz, HeinkeJPG file - 139.67 kB - 1 595 x 1 875 pixelsadded on 2005-02-231 495 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha...© 2005 Schultz, Heinke
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