. 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. Figure 30. Pseudotindaria erebus (Clarke). Internal view of left and right valves of specimen from Station 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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