Open Access

Table 4

Morphometric parameters (mean, range; μm) of Gyrodactylus prostae collected from topmouth gudgeon Pseudorasbora parva in the Melanbon borrow pit, Czech Republic, compared with published data.

Gyrodactylus prostae ex Pseudorasbora parva Melanbon, CR; n = 6 Gyrodactylus prostae Galli et al. [24] Gyrodactylus laevis Galli et al. [24]
Body length 507 (413–557) 300–600 350
Body width 90 (75–113)
Haptor length 98 (84–111)
Haptor width 111 (75–160)
Pharynx length 33 (29–36)
Pharynx width 35 (35–35)
Penis length 13 (n = 1)
Penis width 13
Spines 1/6 + 3
Anchor
Total length 39 (37–41) 44–60 33–43
Shaft 28 (25–30) 34–44 27–34
Root 13 (10–15) 16–22 10–16
Point 18 (16–20) 20–30 15–18
Aperture distance 18 (13–24)
Ventral bar
Total width 15 (14–18) 15–19 9–15
Total length
Median length 4.7 (3.7–5.6) 4–7 4–6
Membrane length 11 (8.0–13) 12–16 9–16
Ventral bar process to mid length 1.5 (1.0–2.5)
Dorsal bar
Total length 10 (9.1–12) 9–11 7–9
Width 1.7 (1.4–1.9) 2–3 1
Marginal hook
Total length 24 (24–25) 24–30 15–20
Shaft 18 (17–19)
Sickle length 6.8 (6.3–7.3) 7–8 5–6
Distal width 2.7 (2.5–3.0)
Proximal width 4.1 (3.7–4.2)
Aperture distance 5.2 (4.7–5.7)
Toe width 1.7 (1.5–1.9)
Filament length 14 (13–15)

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