Table 2 Comparison of the shell morphology of the four most utilized gastropod shell types and the two hermit crab species
| Â | PC 1 | PC 2 | PC 3 |
|---|---|---|---|
Shell length | − 0.396 | 0.784 | 0.080 |
Shell width | − 0.485 | − 0.265 | 0.016 |
Aperture length | − 0.438 | − 0.078 | − 0.851 |
Aperture width | − 0.437 | − 0.526 | 0.362 |
Shell weight | − 0.472 | 0.174 | 0.370 |
Shell thickness | − 0.329 | − 0.804 | 0.046 |
Cerithiid shells | 0.874 (A) | 0.765 (A) | 0.372 (A) |
Nassariid shells | 0.839 (A) | − 0.200 (B) | 0.268 (A) |
Naticid shells | − 1.198 (B) | − 1.189 (C) | 0.056 (B) |
Strombid shells | − 1.195 (B) | 0.384 (D) | − 0.791 (C) |
Coenobita rugosus | 0.151 (A) | − 0.134 (A) | 0.046 (A) |
Coenobita perlatus | − 0.479 (B) | 0.424 (B) | − 0.146 (B) |