Image: Britannica Echinoderma 5
Britannica_Echinoderma_5.jpg (464 × 223 pixels, file size: 39 KB, MIME type: image/jpeg)
Description: Bothriocidaris globulus. A, from the side; B, the plates around the aboral pole. (After Jaekel.) The short spines which were attached to the tubercles are not drawn.
Title: Britannica Echinoderma 5
Credit: Encyclopædia Britannica, 1911
Author: Encyclopædia Britannica, Volume 8, Slice 10., available freely at Project Gutenberg
Usage Terms: Public domain
License: Public domain
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