Table 5.
Dimensions of Lepotrema melichthydis n. sp., L. amansis n. sp. and L. cirripectis n. sp.
| Species | Lepotrema melichthydis | Lepotrema amansis | Lepotrema cirripectis | |||
|---|---|---|---|---|---|---|
| Host | Melichthys vidua | Amanses scopas | Cirripectes filamentosus | Cirripectes stigmaticus | Cirripectes chelomatus | |
| Locality | Palau | Heron Island | Heron Island | Lizard Island | Heron Island | |
| n | 6 | 6 | 26 | 31 | 1 | 8 |
| Body | 1,042–1,504 × 424–660 (1,234 × 533) | 1,183–1,928 × 480–889 (1,597 × 675) | 621–955 × 221–403 (766 × 288) | 765–1,507 × 275–608 (1,160 × 424) | 989 × 302 | 562–704 × 178–243 (642 × 218) |
| Forebody | 430–605 (490) | 474–742 (625) | 260–385 (316) | 276–564 (411) | 329 | 205–256 (236) |
| Pre-oral lobe | 35–58 (45) | 28–47 (37) | 0–13 (5) | 0–9 (2) | 0 | 0–5 (1) |
| Oral sucker | 107–162 × 150–216 (135 × 175) | 149–198 × 187–272 (173 × 236) | 70–139 × 118–178 (104 × 150) | 76–156 × 111–209 (107 × 160) | 79 × 128 | 52–67 × 74–91 (59 × 84) |
| Prepharynx | 0–24 (9) | 0–28 (14) | 0–37 (22) | 13–74 (31) | 37 | 10–22 (14) |
| Pharynx | 121–177 × 119–196 (143 × 149) | 150–220 × 153–206 (193 × 182) | 64–111 × 74–118 (87 × 93) | 51–99 × 64–118 (76 × 91) | 56 × 71 | 38–47 × 37–58 (43 × 51) |
| Oesophagus | 6–31 (16) | 28–40 (34) | 5–33 (19) | 19–58 (35) | 16 | 14–19 (16) |
| Intestinal bifurcation to ventral sucker | 118–171 (146) | 114–222 (179) | 36–117 (82) | 103–239 (160) | 142 | 83–111 (105) |
| Pre-vitelline distance | 189–287 (221) | 219–330 (262) | 126–211 (168) | 143–353 (243) | 182 | 111–134 (123) |
| Vitellarium to ventral sucker | 232–318 (268) | 255–418 (363) | 110–196 (148) | 101–254 (168) | 147 | 77–137 (112) |
| Ventral sucker | 120–171 × 124–171 (146 × 147) | 148–210 × 156–214 (184 × 189) | 98–169 × 102–176 (127 × 133) | 88–170 × 101–181 (132 × 148) | 105 × 113 | 58–76 × 65–88 (69 × 76) |
| Cirrus-sac | 226–395 × 81–144 (299 × 110) | 307–465 × 135–230 (410 × 172) | 174–327 × 55–98 (246 × 76) | 186–299 × 63–108 (235 × 85) | 188 × 63 | 143 × 38 |
| Ventral sucker to ovary | 27–96 (59) | 40–75 (55) | 19–75 (38) | 54–177 (114) | 119 | 33–59 (48) |
| Ovary | 59–120 × 91–160 (82 × 110) | 104–173 × 153–214 (136 × 187) | 47–83 × 45–84 (60 × 59) | 64–176 × 72–227 (113 × 130) | 122 × 115 | 48–89 × 38–62 (58 × 52) |
| Ovary to anterior testis | 0 | 0 | 0–13 (1) | 0 | 0 | 0–30 (15) |
| Anterior testis | 93–130 × 114–260 (109 × 174) | 129–185 × 211–296 (165 × 264) | 55–96 × 50–111 (73 × 79) | 61–147 × 59–140 (98 × 105) | 76 × 58 | 46–64 × 30–49 (54 × 42) |
| Distance between testes | 0 | 0 | 0 | 0 | 0 | 0 |
| Posterior testis | 94–165 × 82–233 (131 × 141) | 200–268 × 209–271 (226 × 244) | 59–113 × 51–122 (87 × 81) | 75–182 × 72–156 (111 × 113) | 71 × 74 | 51–64 × 30–60 (57 × 49) |
| Post-testicular distance | 186–257 (229) | 153–300 (237) | 71–144 (93) | 132–283 (209) | 207 | 107–163 (128) |
| Post-caecal distance | 37–93 (68) | 65–113 (80) | 17–70 (45) | 21–86 (52) | 49 | 27–43 (37) |
| Eggs | 49–56 × 27–30 (51 × 29) | 50–56 × 27–34 (53 × 30) | 42–60 × 26–36 (53 × 32) | 50–65 × 25–39 (56 × 32) | 54 × 32 | 48–61 × 24–35 (53 × 31) |
| Width (%)a | 39.2–49.8 (43.1) | 40.6–46.1 (42.1) | 32.5–49.0 (37.5) | 31.7–46.5 (36.4) | 30.5 | 31.7–37.9 (34.0) |
| Forebody (%)a | 37.5–41.6 (39.7) | 37.9–40.3 (39.1) | 32.5–44.9 (41.3) | 30.5–40.2 (35.5) | 33.2 | 35.3–39.2 (36.7) |
| Sucker length ratio | 1:1.05–1.15 (1.09) | 1:0.99–1.14 (1.07) | 1:0.96–1.50 (1.24) | 1:0.96–1. 67 (1.25) | 1:1.33 | 1:1.06–1.33 (1.17) |
| Sucker width ratio | 1:0.79–0.89 (0.84) | 1:0.76–0.87 (0.80) | 1:0.82–1.01 (0.88) | 1:0.73–1.02 (0.92) | 1:0.88 | 1:0.83–0.97 (0.90) |
| Oral sucker: pharynx width | 1:1.04–1.28 (1.19) | 1:1.22–1.35 (1.29) | 1:1.45–1.83 (1.62) | 1:1.59–2.04 (1.76) | 1:1.82 | 1:1.43–2.05 (1.65) |
| Ventral sucker to ovary (%)a | 2.55–6.82 (4.59) | 3.16–39.1 (34.4) | 2.31–9.24 (4.97) | 4.81–13.5 (9.76) | 12.0 | 5.24–8.60 (7.45) |
| Post-testicular distance (%)a | 16.7–22.1 (18.7) | 12.9–15.6 (14.7) | 9.48–16.6 (12.1) | 13.4–22.5 (17.9) | 20.9 | 17.2–23.1 (19.9) |
| Prepharynx (%)a | 0–2.32 (0.79) | 0–1.60 (0.84) | 0–5.75 (2.99) | 1.26–3.46 (2.50) | 3.77 | 1.43–3.60 (2.15) |
| Oesophagus (%)a | 0.48–2.08 (1.25) | 1.91–2.42 (2.17) | 0.59–4.16 (2.54) | 1.84–4.24 (3.06) | 1.65 | 2.14–2.87 (2.56) |
| Intestinal bifurcation to ventral sucker distance (%)a | 10.2–13.9 (11.9) | 9.60–12.2 (11.1) | 4.40–13.1 (10.7) | 10.7–16.8 (13.8) | 14.3 | 14.7–17.8 (16.3) |
| Vitellarium to ventral sucker distance (%)a | 20.4–22.3 (21.7) | 21.3–25.5 (22.7) | 15.6–22.6 (19.3) | 9.61–17.7 (14.6) | 14.9 | 13.7–19.7 (17.4) |
| Ovary to anterior testis (%)a | 0 | 0 | 0–1.58 (0.15) | 0 | 0 | 0–4.35 (2.26) |
| Distance between testes (%)a | 0 | 0 | 0 | 0 | 0 | 0 |
| Cirrus-sac length (%)a | 21.7–26.3 (24.1) | 24.1–27.1 (25.8) | 26.1–39.4 (32.0) | 16.3–25.6 (20.5) | 19.1 | 20.3 |
| Pre-vitelline distance (%)a | 16.0–19.3 (18.0) | 13.5–18.5 (16.5) | 15.5–27.5 (22.0) | 12.8–28.8 (21.0) | 18 | 17.2–22.8 (19.3) |
| Anterior testis length (%)a | 7.79–10.7 (8.87) | 9.56–11.0 (10.4) | 7.61–11.9 (9.50) | 6.28–12.2 (8.47) | 7.70 | 6.55–10.4 (8.42) |
| Posterior testis length (%)a | 8.07–14.0 (10.7) | 13.4–16.9 (14.3) | 8.68–13.2 (11.2) | 7.89–13.5 (9.50) | 7.14 | 7.64–10.3 (8.88) |
a%, percent of body length