Table 3 Comparative morphometry of males of Varestrongylus alces and V. capreoli
Characters | V. alces a | V. alces b | V. capreoli c | V.cf.capreolia |
|---|---|---|---|---|
Total length | 11.4–14.7 (12.9 ± 2.01) | 5–6 | 5.3–13.5 | 7.1–8.9 (7.9 ± 0.88) |
Maximum width | 68.5–80 (74.2 ± 4.97) | 65 | 32–68 | 42–44 (43.5 ± 1.00) |
Esophagus § | 250–272 (264.5 ± 8.95) | 146 | 90–146 | 227–239 (232 ± 5.10) |
Esophagus base width | 32–37 (33.9 ± 2.19) | 36 | – | 20–36 (24.6 ± 6.47) |
Body width at esophagus | 53.8–61.9 (56.3 ± 3.38) | – | – | 33–60 (40.4 ± 11.10) |
Nerve-ring § | 68–89.7 (81.8 ± 9.04) | – | – | 70–81 (76.3 ± 5.60) |
Cervical papillae § | 201–207 (203.4 ± 3.19) | – | – | 163* |
Excretory pore § | 208–230.3 (221.8 ± 9.83) | – | – | 166–201 (180.5 ± 14.71) |
Spicules | 138.6–163 (152.3 ± 7.31) | 150–166 | 129–160 | 134–152 (138.3 ± 7.03) |
Gubernaculum | 65–83.13 (76.58 ± 7.06) | – | 70–86 | 70–92 (81.8 ± 8.14) |
Gubernaculum head | Absent | Absent | Present 8–14 | Absent |
Gubernaculum corpus | 38–49 (43.9 ± 4.34) | – | NA | 30–38 (32.8 ± 3.77) |
Gubernaculum crura | 24–39.12 (32.6 ± 5.09) | – | NA | 32–56 (46.5 ± 10.25) |
Crura denticulate piece | 15–25 (19. 5 ± 2.91) | – | 18–30 | 21–25 (23.2 ± 1.47) |
Body width at bursa | 42–56 (48.3 ± 7.36) | – | – | 33–37 (34.5 ± 1.38) |
Bursa width | 125–160 (140 ± 18.03) | – | – | NA |
Bursa length | 75–90 (84.3 ± 5.9) | – | – | NA |
Dorsal ray length | 18–30 (24.5 ± 3.65) | – | NA | 6–10 (8.6 ± 1.79) |
Dorsal ray base | 11.4–15 (12.9 ± 1.51) |  | NA | 7.5–12.5 (9.2 ± 2.06) |