| 壳宽范围(mm) | 个体数(只) | 路径总长范围(cm) |
| 20.1~25.0 | 0 | - |
| 25.1~30.0 | 8 | 75 (61~96) |
| 30.1~35.0 | 4 | 118 (74~188) |
| 35.1~40.0 | 6 | 170 (96~298) |
| 40.1~45.0 | 1 | 103 |
| 45.1~50.0 | 1 | 148 |
| 50.1~55.0 | 0 | - |
| 55.1~60.0 | 1 | 112 |
| 60.1~65.0 | 1 | 229 |