       |
||||||||||
| Click on the image which your specimen most closely resembles. | ||||||||||
 |
||||||||||
| 4 anterior spines (as) of unequal length, 1 of which is longer; body ovoid in shape | ||||||||||
 |
||||||||||
| 3 long anterior spines (as), 2 of which may appear equal in length; body triangular/cone shaped | ||||||||||
| Taxonomy | ||||||||||
|