. The Biological bulletin. Biology; Zoology; Marine biology. Fig. 1. Microphotograph of avicularium when beak had been closed and swaying stopped by injection of fresh water. The branch of the colony was broken close to the attachment of the avicularium; this afforded an exceptionally clear Fig. 2. Diagram of avicularium with beak open, showing tuft of hairs on rounded knob. The position of the muscle in the crown of the head is shown by radiating lines. states that it has been seen to seize and hold small animals, and sug- gests that its function is to feed the colony. In Parker
. The Biological bulletin. Biology; Zoology; Marine biology. Fig. 1. Microphotograph of avicularium when beak had been closed and swaying stopped by injection of fresh water. The branch of the colony was broken close to the attachment of the avicularium; this afforded an exceptionally clear Fig. 2. Diagram of avicularium with beak open, showing tuft of hairs on rounded knob. The position of the muscle in the crown of the head is shown by radiating lines. states that it has been seen to seize and hold small animals, and sug- gests that its function is to feed the colony. In Parker and Haswell (p. 352) a defensive function is suggested. Harmer (loc. cit. pp. 485-487) says, "In the course of some observations ... on Bugula calathus at. 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 Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-; Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report; HighWire Press. Lancaster, Pa. [etc. ] : Lancaster Press, inc. [etc. ]
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