Table 4
Morpho-anatomical metrical data for female specimens (immature with or without ovarian balls, and gravid) and male specimens (all stages of development combined) of Acanthogyrus (Acanthosentis) cf. tilapiae from Coptodon guineensis at Sebkha Imlili. Data are averages in μm, followed by ranges in parentheses and number of specimens studied in italics. L = length; W = width; na = data not available.
| Immature females | Gravid females | Males | ||
|---|---|---|---|---|
| Proboscis | L | 76 (28–115) 11 | 86 (56–105) 12 | 97 (59–414) 20 |
| W | 70 (53–105) 11 | 71 (54–95) 12 | 79 (41–362) 20 | |
| Neck | L | 66 (21–94) 10 | 84 (60–117) 10 | 83 (53–177) 12 |
| W | 41 (21–83) 10 | 29 (16–48) 10 | 28 (14–74) 12 | |
| Trunk | L | 1202 (348–1990) 26 | 3411 (2014–5755) 27 | 1298 (388–2715) 50 |
| W | 308 (103–522) 25 | 599 (307–873) 27 | 345 (117–647) 50 | |
| Receptacle | L | 144 (53–227) 11 | 231 (150–328) 24 | 148 (66–411) 22 |
| W | 48 (24–64) 11 | 76 (51–108) 24 | 65 (29–237) 22 | |
| Lemniscus 1 | L | 464 (268–720) 14 | 796 (346–1461) 13 | 427 (270–880) 25 |
| W | 29 (10–52) 15 | 60 (37–101) 13 | 35 (14–57) 28 | |
| Lemniscus 2 | L | 383 (156–516) 6 | 716 (399–1049) 13 | 533 (358–840) 8 |
| W | 32 (10–51) 5 | 51 (30–79) 12 | 40 (15–84) 34 | |
| Hook I (ant.) | blade | 40 (32–50) 16 | 38 (26–52) 17 | 36 (27–43) 29 |
| root | 26 (19–39) 16 | 25 (17–36) 17 | 24 (17–30) 29 | |
| Hook II (med.) | blade | 12 (10–12) 3 | 15 (12–17) 9 | 13 (10–17) 13 |
| root | na | na | na | |
| Hook III (post.) | blade | 15 (11–21) 8 | 13 (10–17) 13 | 13 (11–18) 17 |
| root | 11 (10–13) 6 | 12 (8–16) 12 | 14 (10–18) 15 | |
| Trunk spines | # rows | 38 (33–43) 8 | 35 (27–45) 9 | 34 (25–40) 10 |
| Genital/trunk ratio | 648 (178–1730) 36 | |||
| Eggs | L | 31 (22–36) 22 | ||
| W | 14 (10–21) 14 | |||
| Testis (ant.) | L | 220 (19–492) 36 | ||
| W | 158 (20–295) 28 | |||
| Testis (post.) | L | 219 (33–485) 30 | ||
| W | 181 (16–280) 31 | |||
| Cement gland | L | 174 (140–210) 5 | ||
| W | 125 (100–150) 5 | |||
| Säefftigen’s pouch | L | 220 (150–250) 5 | ||
| W | 67 (50–75) 5 | |||
| Everted bursa | L | 148 (100–250) 5 | ||
| W | 118 (100–180) 5 |
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