. Bulletin of the Essex Institute. Essex Institute; Natural history; genealogy. ECHINODERMATA OF NEW ENGLAND. 51 II. Communal and adherent. a. In branching colonies b. In calcareous encrustations III. Not adherent. Lives in sand, not colonial. Lophohelia. ACTINOLOBA (METRIDIUM). a. Tentacles simple, slightly retractile. Ilyanthus. b. Tentacles in two sets, posterior opening. Cereanthus. Body covered in sand, colonial. Individuals not connected with coenosarc . Edwardsia. Parasitic in Cyanea .... Philomedusa. A. I. Actinoloba. Body fixed. Outer surface smooth. Ten- tacles small, on
. Bulletin of the Essex Institute. Essex Institute; Natural history; genealogy. ECHINODERMATA OF NEW ENGLAND. 51 II. Communal and adherent. a. In branching colonies b. In calcareous encrustations III. Not adherent. Lives in sand, not colonial. Lophohelia. ACTINOLOBA (METRIDIUM). a. Tentacles simple, slightly retractile. Ilyanthus. b. Tentacles in two sets, posterior opening. Cereanthus. Body covered in sand, colonial. Individuals not connected with coenosarc . Edwardsia. Parasitic in Cyanea .... Philomedusa. A. I. Actinoloba. Body fixed. Outer surface smooth. Ten- tacles small, on lobes, retractile. Reproduction; fission,. 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 Essex Institute. 1n. Salem, Mass. , Essex Institute
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