She Drills Seashells on the Seashore

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She Drills Seashells on the Seashore An
Experimental Study of the manufacture methods of
perforating whole-shell-beads   This paper and
accompanying slides are licensed with a Creative
Commons Attribution-Noncommercial-ShareAlike
license. Attribution Kirsty Murphy  
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Figure 1a Some of the shell beads found in
Blombos Cave in South Africa (source Henshilwood
2004, 404).
Figure 1b Bead types found, from Skhul Cave,
Israel (top 2 shells) Oued Djebbana, Algeria
(bottom shell)
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Figure 2 Identifying features of a Gastropod
mollusc (source Gibbons 2003, 17).
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Figure 3c Nerita versicolor
Figure 3b Nucella lapillus
Figure 3a Littorina littorea
Figure 3e Pyrene epamella
Figure 3d Cypraea annulus
Figure 3f Nassarius albus
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Figure 4 Gouged Cypraea annulus
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Figure 5 Drilled Littorina littorea
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Figure 6 Drilled Cyperacae annulus
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Figure 7 Sawn Cyperaea annulus
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Figure 8 Scratched Littorina littorea
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Figure 9 Grinding Nerita versicolor
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Figure 10 Grinding Littorina littorea