. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 3<H) C. M. YONGE C. PBR 5 cm. POL- AOL A FIGURE 6. M. albus. A, interior of right valve of adult shell; B, ligamental region further enlarged; C, interior of right valve of half-grown specimen with byssal notch still present. In a younger shell, at a stage before the hinge line has lengthened (Fig. 6C), there is both byssal notch (BN ) and muscle scar (PBR). Unfortunately this shell, which was personally collected at Zamboanga in the Philippines, was empty. A living adult specimen was later collected by Professor T. F. Go


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 3<H) C. M. YONGE C. PBR 5 cm. POL- AOL A FIGURE 6. M. albus. A, interior of right valve of adult shell; B, ligamental region further enlarged; C, interior of right valve of half-grown specimen with byssal notch still present. In a younger shell, at a stage before the hinge line has lengthened (Fig. 6C), there is both byssal notch (BN ) and muscle scar (PBR). Unfortunately this shell, which was personally collected at Zamboanga in the Philippines, was empty. A living adult specimen was later collected by Professor T. F. Goreau by diving under the De Moor in the lee of Lizard Island within the Great Barrier Reef. The shell was cm. long by some 12 cm. along the hinge line. There was no byssal notch, no byssus and no posterior byssal retractor although the small anterior muscle was retained. The true foot was reduced to a small protuberance with a minute opening of the former byssal gland and was situated at the base of the very large and extremely mobile accessory 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology