. The Biological bulletin. Biology; Zoology; Marine biology. 396 C M. YONGE Multivincular ligament Two stages in the growth of the Hgament are shown in Figure 11 A, B. It begins as a simple opisthodetic ligament (A), the inner Hgament layer inclined posteriorly from the umbones as in Malleus. But instead of this increasing steadily in size by added secretion from the mantle isthmus as in that genus (see Fig. 2A), new areas of inner ligament, or resilifers, appear at intervals posteriorly. Two of these are shown in Figure 11B; the maximum number observed in /. isognomon was 18. While obviously
. The Biological bulletin. Biology; Zoology; Marine biology. 396 C M. YONGE Multivincular ligament Two stages in the growth of the Hgament are shown in Figure 11 A, B. It begins as a simple opisthodetic ligament (A), the inner Hgament layer inclined posteriorly from the umbones as in Malleus. But instead of this increasing steadily in size by added secretion from the mantle isthmus as in that genus (see Fig. 2A), new areas of inner ligament, or resilifers, appear at intervals posteriorly. Two of these are shown in Figure 11B; the maximum number observed in /. isognomon was 18. While obviously the number is related to the length of the hinge line, it is not necessarily related to the length of the OCL. 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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