. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Deep Sea Protobranchs • Sanders 6- Mlsn £9 muscles. Figure 7. Tindaria callistiformis Verrill & Bush. Trans- verse section of the foot to show position of the mus- cles and pedal glands. ganglion and join with the hind gut just ventral to the latter. The liind gut turns and follows a dorsal course parallel with the style sac, with a shallow, ill-defined U- bend posterior to the stomach. The hind gut then forms a single loop to the right I and the loop togetlier with some body tissue i penetrates the right mantle t
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Deep Sea Protobranchs • Sanders 6- Mlsn £9 muscles. Figure 7. Tindaria callistiformis Verrill & Bush. Trans- verse section of the foot to show position of the mus- cles and pedal glands. ganglion and join with the hind gut just ventral to the latter. The liind gut turns and follows a dorsal course parallel with the style sac, with a shallow, ill-defined U- bend posterior to the stomach. The hind gut then forms a single loop to the right I and the loop togetlier with some body tissue i penetrates the right mantle to a position I close to the palHal line. A typhlosole is present throughout the length of the hind gut. The ganglia and their connectives are large, as the visceral and cerebral ganglia are elongated. A pair of statocysts dorsal and postero-lateral to the pedal gangUa are filled with small crystals (which are not calcium carbonate) lacking ducts to the out- side. Transverse muscle fibres in the foot are found dorsal and ventral to the ganglia and the statocysts. The kidney is small and multilobed. Sexes are separate. Size, Reproduction and Age. All three stations from which large numbers of T. calUstifonnis were collected showed similar population histograms. Each was strongly skewed to the left (Fig. 9). Yet, we might not adequately be sampling the smallest juvenile stages which could pass through the mm openings in our screens. The eggs on hatching are at least mm long and the size of the metamoi-phosed post- hind gut stomach. 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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