File:EB1911 Sponges - Derivatives of the Hexact type of Spicule.jpg
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EB1911_Sponges_-_Derivatives_of_the_Hexact_type_of_Spicule.jpg (734 × 197 pixels, file size: 34 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:06, 4 October 2018 | 734 × 197 (34 KB) | Bob Burkhardt | {{Information |description ={{en|1=Derivatives of the Hexact type of Spicule, found in Hexactinellida: a, Dagger. d, Amphidisc. f, Tetract (staurus). b, c, Pinuli. e, Pentact. g, Diact (rhabdus).}} |date =published 1911 |source =“Sponges,” ''Encyclopædia Britannica'' (11th ed.), v. 25, 1911, p. 723, fig. 27. |author =After F. E. Schulze. |permission ={{PD-Britannica}} }} Category:Hexactinellida Category:Sponge spicules |
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