. Elements of zoölogy : a textbook. Zoology. ALCYONARIA. 473 3. MADREPORARIA or coral - producing polyps with a definite number of tentacles—in most cases in multiples of six (appar- ently only four in the Cyatliopliylloid corals, all of which are fossil); as Madrepores, Porites, Astraeas, Maeandrinas, etc. SUB-SECTION II. THE ORDER OF ALCYONARIA OR SEA-PENS, SEA-FANF ETC. THE Alcyonarians are polyps which have eight long- fringed tentacles around a narrow disk, and which form communities by budding. The " Sea-pens " and Renillas FIG. Sea-fan, Gorgonia Please note t
. Elements of zoölogy : a textbook. Zoology. ALCYONARIA. 473 3. MADREPORARIA or coral - producing polyps with a definite number of tentacles—in most cases in multiples of six (appar- ently only four in the Cyatliopliylloid corals, all of which are fossil); as Madrepores, Porites, Astraeas, Maeandrinas, etc. SUB-SECTION II. THE ORDER OF ALCYONARIA OR SEA-PENS, SEA-FANF ETC. THE Alcyonarians are polyps which have eight long- fringed tentacles around a narrow disk, and which form communities by budding. The " Sea-pens " and Renillas FIG. Sea-fan, Gorgonia Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Tenney, Sanborn, 1827-1877. New York : Scribner
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