. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Figure 29. Pseudotindaria erebus (Clarke). Internal view of left valve of type specimen No. 218182 Mu- seum of Comparative Zoology, Harvard. Figure 28. T/ndana m/n/'scu/a Sanders & Allen. Growth series in lateral view. rent aperture on the right side and, histo- logically, it is similar to that of Tindaria. A food aperture is also developed from the hypertrophied inner muscular fold giving rise to a third, but smaller, channel. The anterior sense organ is well-developed. Ad- ductor muscles are oval, although not g
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Figure 29. Pseudotindaria erebus (Clarke). Internal view of left valve of type specimen No. 218182 Mu- seum of Comparative Zoology, Harvard. Figure 28. T/ndana m/n/'scu/a Sanders & Allen. Growth series in lateral view. rent aperture on the right side and, histo- logically, it is similar to that of Tindaria. A food aperture is also developed from the hypertrophied inner muscular fold giving rise to a third, but smaller, channel. The anterior sense organ is well-developed. Ad- ductor muscles are oval, although not greatly elongate, and situated at a relatively ' greater distance in from the shell margin than is the case in Tindaria. Although tliere is no marked development of the siphonal , embayment, the siphons can be retracted within the valves; the retractor muscles are. 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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