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Table 3 Comparative morphometry of males of Varestrongylus alces and V. capreoli

From: Resurrection and redescription of Varestrongylus alces (Nematoda: Protostrongylidae), a lungworm of the Eurasian moose (Alces alces), with report on associated pathology

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)
  1. aPresent study; bOriginal description [20]; cOriginal description [3], plus additional information compiled in [1].
  2. §Measurements from anterior end; *Single measurement.
  3. Range of measurements are given followed by mean and standard deviation. Total length in millimeters (mm), and all other measurements are in micrometers (μm).