. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 0 111 1)1. VI - 1,2 V - 0,1-3 V - 0,1,2 IV - 0,1-3 Iv - 1,2 III - 1,3 11 - 1,2 Figure 7. Fragiscutum rhytium n. gen., n. sp. Two cranidia showing notation (after Tripp, 1957, 1962) of glabellar tubercles. A) Original of Plate 12, figure 15. B) Original of Plate 12, figure 1. Abbreviatons: Oa, la, 2a, positions of occipital, first and second apodemes; ap, anterior pit; pgf, preglabellar furrow. short, blunt spine. Apodeme (Pi. 11, fig. 3; PI. 12, figs. 13, 17) is curved inward and downward, and situated a short distanc
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 0 111 1)1. VI - 1,2 V - 0,1-3 V - 0,1,2 IV - 0,1-3 Iv - 1,2 III - 1,3 11 - 1,2 Figure 7. Fragiscutum rhytium n. gen., n. sp. Two cranidia showing notation (after Tripp, 1957, 1962) of glabellar tubercles. A) Original of Plate 12, figure 15. B) Original of Plate 12, figure 1. Abbreviatons: Oa, la, 2a, positions of occipital, first and second apodemes; ap, anterior pit; pgf, preglabellar furrow. short, blunt spine. Apodeme (Pi. 11, fig. 3; PI. 12, figs. 13, 17) is curved inward and downward, and situated a short distance in trom the axial furrow. Ventral surface of pleura does not reflect dorsal surface (Fig. 8b); anterior half is convex down- ward, and there is a deep groove which cur\(s outward just inside the narrow doublure; latter widens and extends across the pleura at the tip. The various struc- tures that facilitate articulation between the segments and limit enrollment are shown in Figure 8a (compare PI. 11, figs. 1-3; PI. 12, figs. 13, 14, 17, 20). The down- ward-projecting ring process fits into a ring socket that surrounds the axial process. The anterior flange on the inner part of the pleura fits beneath the narrow posterior. 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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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
