Figure 1:
Figure 2:
Measurements of females of M_ sphaerocephalum from Botswana_
| n | 10 ♀♀ |
| L | 318 ± 24.8 (275-342) |
| a | 9.7 ± 0.4 (9.2-10.2) |
| b | 3.4 ± 0.1 (3.2-3.6) |
| c | 40.6 ± 4.5 (34.1-44.7) |
| c´ | 0.5 ± 0.02 (0.4-0.5) |
| VL/VB | 0.6 ± 0.4 (0.7-0.9) |
| V | 91 ± 3.5 (88-96) |
| VL | 24 ± 0.5 (23-24) |
| Stylet | 48 ± 2.3 (45-51) |
| Nerve ring | 71 ± 4.9 (67-74) |
| Pharynx | 96 ± 5.7 (87-103) |
| Excretory pore | 102 ± 8.8 (96-115) |
| Neck base diameter | 33 ± 1.4 (31-34) |
| Vulval-body diameter | 28 ± 3.1 (25-32) |
| Anal body diameter | 17 ± 1.8 (16-20) |
| Tail length | 8 ± 0.8 (7-9) |
| Rst | 12 ± 1.0 (11-13) |
| Rph | 22 ± 0.5 (21-22) |
| Rex | 21 ± 1.2 (20-22) |
| Rv | 4.6 ± 0.5 (4-5) |
| Ran | 2.3 ± 0.5 (2-3) |
| Rvan | 2.6 ± 0.5 (2-3) |
| R | 66 ± 1.4 (65-67) |