Table 2 Detailed information of morphological characteristics of the four strongylid species
Measurement Item | Oesophagodontus robustus | Bidentostomum ivashkini | Skrjabinodentus caragandicus | Petrovinema skrjabini | ||||
|---|---|---|---|---|---|---|---|---|
Female | Male | Female | Male | Female | Male | Female | Male | |
Number (individuals) | 5 | 3 | 6 | 2 | 8 | 8 | 8 | 8 |
Body length (mm) | 19.0–23.0 | 14.2–15.4 | 9.0–24.0 | 7.6–9.1 | 8.3–10.9 | 7.9–9.6 | 13.5–16.8 | 12.1 |
Number of external leaf-crown leaves | 18 | 18 | 8 | 8 | 8 | 8 | 28 | 28 |
Buccal capsule width (μm) | 390.6 | 212.9–335.9 | 46.0–58.0 | 72.6 | 64.8 | 57.1 | 46.0–58.0 | 57.1 |
Buccal capsule depth (μm) | 329.2 | 259.5 | 17.0–25.0 | 70.4 | 26.8 | 29.7 | 145.0–180.0 | 135.0–153.0 |
Length of vulva to tail tip (mm) | 3.00–3.40 | – | 0.54–0.73 | – | 0.36–0.39 | – | 0.35–0.46 | – |
Length of anus to tail tip (mm) | 0.63 | – | 0.22–0.29 | – | 0.16 | – | 0.18–0.28 | – |
Spicule length (mm) | – | 0.60–0.71 | – | 0.88 | – | 1.02–1.08 | – | 0.62–0.77 |
Dorsal lobe of bursa length (mm) | – | 0.33–0.36 | – | 0.75 | – | 0.43–0.46 | – | 0.56–0.66 |