Pennatula Phosphorea

“A. Colony of Pennatula phosphorea from the metarachidial aspect. p, The peduncle. B, Section of the rachis bearing a single pinna. a, Axis; b, metarachidial; c, prorachidial; d, pararachidial stem canals.” — The Encyclopedia Britannica, 1910

Keywords

peduncle, pinna, pennatula, phosphorea, rachis, Metarachidial, Prorachidial, Pararachidial

Galleries

Corals and Sea Anemone

Source

The Encyclopedia Britannica, Eleventh Edition (New York: The Encyclopedia Britannica Company, 1910)II:99

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