Table 2 Comparative morphometry of males of all valid species within the genus Varestrongylus
Species/Characters | V. eleguneniensis | V. alpenae a | V. alces b | V. capreoli c | V. capricola d | V. longispiculatus e | V. pneumonicus f | V. qinghaiensis g | V. sagittatus h | V. tuvae i | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Â | Range | Ex muskox | Ex caribou | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Total length | 8.8–14.7 | 8.8–12.28 | 11.7–14.7 | 13–15 | 11.36–14.7 | 5.3–13.5 | 15–18 | 14.47–17.19 | 14–24 | 9–12.2 | 14.5-33.8 | nd |
Maximum width | 78–147 | 78–147 | 84–106 | _ | 68.46–80 | 32–68 | 140 | 62–75 | 165–200 | 54–94 | 112–189 | 174 |
Esophagus§ | 247–395 | 247–377 | 365–395 | 230–250 | 250–272 | 90–146 | 275 | 294–349 | 310–390 | 257–338 | 260-360 | _ |
Esophagus base width | 44–62 | 44–60 | 52–62 | _ | 32–37 | _ | 50 | 27–39 | _ | _ | 51 | _ |
Body width at esophagus base | 70–91 | 70–91 | 82 | 60–65 | 53.8–61.9 | _ | _ | _ | _ | 46–79 | _ | _ |
Nerve-ring§ | 87–196 | 87–143 | 182–196 | _ | 68–89.7 | _ | _ | 78–99 | 170–180 | _ | 160 | _ |
Cervical papillae | 151–215 | 151–215 | 184–200 | _ | 201–207 | _ | _ | _ | _ | _ | _ | _ |
Excretory pore§ | 147–242 | 147–242 | 216–234 | 190–200 | 208–230.3 | _ | _ | 135–189 | – | _ | 240 | _ |
Spicule (right) | 105–148 | 105–140 | 135–148 | 375 | 138.6–163 | 129–160 | 250–280 | 232–282 | 290–570 | 80–116.5 | 325–433.8 | 361 |
Spicule (left) | Equal | Equal | Equal | Equal | Equal | Equal | Equal | Sub-equal, 280–314 | Equal | Sub-equal, 107.4–160.9 | Equal | Equal |
Gubernaculum | 60–86 | 60–86 | 67–72 | 145–170* | 65–83.1 | 70–86 | 150 | 114–147 | 138–165 | 104–139 | 128–176.6 | 200 |
Gubernaculum head | Absent | Absent | Absent | Absent | Absent | 8–14 | Absent | Absent | Absent | Absent | Absent | Absent |
Gubernaculum corpus | 32–57 | 32–57 | 37–42 | 95–110 | 38–49 | – | _ | _ | _ | _ | _ | _ |
Gubernaculum crura | 23–36 | 23–36 | 30 | 50–60 | 24–39.1 | – | _ | _ | _ | _ | _ | _ |
Crura denticulate piece | 15–25 | 15–25 | 17–23 | >50 | 15–25 | 18–30 | 25 | 27–29 | 36–40 | 27.2–35 | 33–53.8 | NA |
Body width at bursa | 50–75 | 50–75 | 58–65 | 90–100 | 42–56 | _ | _ | _ | – | 49–62 | 82 | nd |
Bursa width | 95–135 | 95–135 | 110–116 | 350 | 125–160 | _ | _ | _ | 165–220 | _ | _ | _ |
Bursa length | 65–91 | 65–91 | 80–87 | 90 | 75–90 | _ | _ | _ | 140–165 | _ | _ | _ |
Dorsal ray length | 23–39 | 23–39 | 23–36 | 15 | 18–30 | NA | NA | 18–27 | NA | NA | NA | NA |
Dorsal ray base | 21–31 | 21–31 | 26–27 | 10 | 11.4–15 | NA | NA | NA | NA | NA | NA | NA |