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Table 2

Measurements of Pseudaxine trachuri from different hosts and localities.

Source Parona & Perugia [63] Yamaguti [76] Yamaguti [77] Sproston [70] Radujkovic & Euzet [67] Present study Present study
Host T. trachurus T. trachurus T. trachurus T. trachurus T. mediterraneus T. trachurus B. boops
Locality Italy, M.S. Japan, P.O. Japan, P.O. Plymouth, N.A. Montenegro, M.S. Algeria, M.S. Algeria, M.S.
Haptor length 784 (560–1440, n = 12) 954 (500–1400, n = 27)
Total length 4000–6000 2700–3100 3000 2300 5000–6000 2836 (2250–4100, n = 14) 2400 ± 482 (1450–3300, n = 31)
Total width 360–400 530 200–250 583 (310–870, n = 14) 647 ± 150 (300–900, n = 31)
Number of clamps 24–32 20–22 31 27 24–32 25 (17–30, n = 15) 27 ± 2 (20–30, n = 34)
Clamps length 43 (31–50, n = 28) 40 (30–48, n = 29)
Clamps width 60 51 30 (20–50, n = 28) 26 (20–34, n = 29)
Distal pair length 25 24 33 23 25 27 (21–30, n = 13) 29 (24–36, n = 27)
Proximal pair length 10 12 15 13.5 10 (6–12, n = 11) 13 (12–14, n = 20)
Buccal organ length 40* 36–42 39 34 (20–50, n = 12) 39 ± 5 (25–48, n = 35)
Buccal organ width 33–36 33 34 (20–50, n = 12) 38 ± 5 (25–48, n = 35)
Pharynx length 42 45 45 (28–60, n = 10) 42 ± 5 (31–50, n = 33)
Pharynx width 36 36 44 (28–55, n = 10) 41 ± 5 (28–50, n = 33)
Atrium length 39 ± 7 (25–48, n = 14) 34 ± 4 (28–45, n = 34)
Atrium width 42 ± 4 (35–48, n = 14) 34 ± 4 (28–45, n = 34)
Number of atrial hooks >24 13 14 16 12 12 ± 0 (12–12, n = 13) 12 ± 0 (12–12, n = 31)
Genital hooks length 20 20 21 ± 1 (20–21, n = 16) 17 (12–20, n = 26)
Distance genital atrium to anterior extremity 300–330 300 238 (180–370, n = 11) 229 ± 48 (130–360, n = 33)
*

Diameter.

Areas: M.S., Mediterranean Sea; N.A., North Atlantic; P.O., Pacific Ocean.

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