Echinosigra phiale (oral plate patterns)
Description Changes of oral plate pattern during ontogeny. a. Specimen of c. 6 mm. This early stage closely resembles to that of Pourtalesia before ist plates become more and more stretched. b. Specimen of c. 13 mm. c. Specimen of c. 32 mm. The labral plate (1) is separated from the sternal plate (2) by one symmetrical pair of plates: respectively one plate of the posterior ambulacra AI and AV. There are distinct intra-plate lines on the very elongated central ambulacral plates. Modified after Gage (1984).
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added on 2009-02-23115 viewsNARMS taxaScan of drawing Echinosigra phiale (Thomson, 1873) represented as Echinosigra (Echinosigra) phiale (Thomson, 1873)checked Kroh, Andreas 2021-02-24From reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d...
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© 2009 Schultz, Heinke