. 0 â 5mm Fig. 14. A-C. Notoplites tenuis var. uniserialis St. TN 194, off Oates Land. A. Slightly oblique view of bifurcation. B. Zooecium in oblique frontal view. C. Zooecium in side view. Opesia stippled. c. cryptocyst, "oval areas", occlusor muscle, parietal muscle, rootlet-chamber. This variety is represented by fifteen fragments, with two to twelve zooecia each. The zooecia are indistinguishable from those of Notoplites tenuis except that they are a little more slender (Fig. 14 B, C). Scuta and avicularia are absent (as they are on many zooecia of N
. 0 â 5mm Fig. 14. A-C. Notoplites tenuis var. uniserialis St. TN 194, off Oates Land. A. Slightly oblique view of bifurcation. B. Zooecium in oblique frontal view. C. Zooecium in side view. Opesia stippled. c. cryptocyst, "oval areas", occlusor muscle, parietal muscle, rootlet-chamber. This variety is represented by fifteen fragments, with two to twelve zooecia each. The zooecia are indistinguishable from those of Notoplites tenuis except that they are a little more slender (Fig. 14 B, C). Scuta and avicularia are absent (as they are on many zooecia of N. tenuis). As in N. tenuis the cryptocyst may be smooth or granular. The fragments are constantly uniserial and they bifurcate by the formation of a pair of distal buds (Fig. 14 A). Zooecia formed from lateral buds projecting at right angles to the zooecia are common. As uniserial zooecia and lateral buds have also been seen in N. tenuis (see p. 350) there seems to be no reason to give this form more than varietal rank. Each zooecium is jointed proximally, as in the uniserial zooecia of typical N. tenuis. Ovicells are unknown. 7-2
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