Table 3
Measurements of Neohexostoma gymnosardae n. sp. from Gymnosarda unicolor from the South China Sea, and Neohexostoma spp.
| N. gymnosardae n. sp. | N. mochimae Fuentes-Zambrano, 1997 | N. kawakawa Yamaguti, 1968 | N. thunninae (Parona & Perugia, 1889) | N. euthynni (Meserve, 1938) | N. extensicaudum (Dawes, 1940) | N. robustum Price, 1961 | N. pricei (Koratha, 1955) | |
|---|---|---|---|---|---|---|---|---|
| Hosts | Gymnosarda unicolor | Auxis thazard | Euthynnus yaito Neothunnuus macropterus | Thynnus thunninae | Euthynnus alleteratus [Euthynnus lineatus] | Thunnus thynnus | Thunnus obesus (Parathynnus sibi) | Sarda sarda |
| Locality | South China Sea, P. | Venezuela, A. | Hawaii, P. | Italy, M. | Galapagos Islands, P. [Baja California, P.] | English Channel, A. | Tropical Pacific | Texas, A. |
| Source | Present study | [35] | [34] | [24, 25] | [20] [21] | [7] | [26] | [17] |
| Body length | 9660–18800 (13827) | 4444–6166 (5093) | 4900–8400 | 11,000–12,000 | 5853 [3570–5850] | 11,000 | 17,000 | 4500 |
| Body width | 2875–5375(3847) | 874–1160 (1011) | 70–180 | 2000 | 953 [740–950] | 3300 | 4000–4700 | 400–850 |
| Haptor length | 1172–1810 (1 446) | 665–1140 (903) | 953 | 440 | ||||
| Haptor width | 1369–2582 (1827) | 1273–1615 (1444) | 1200–1550 | 1500 | 1300 | 750–850 | ||
| Clamps | 1st pair: 275–506 × 505–697 (415 × 594) | Anterior 3 clamps: 122–209 × 200–315 (164 × 250) | 224–370 × 200–230 | 1st pairs: 275 × 220 | 203 × 339 [Anterior 3 clamps: 153–255 × 221–403, posterior-most pair: 156–238 × 194–332] | 0.067 ** | 1st pair: 500 × 750 | Anterior two pairs: 500 × 340 |
| 2nd pair: 327–477 × 577–713 (395 × 620) | Posterior clamp: 94–177 × 117–198 (126 × 166) | 2nd pairs: 225 × 180 | 0.030*** | 2nd pair: 600 × 850 | 3rd pair: 460 × 340 | |||
| 3rd pair: 302–455 × 475–624 (376 × 587) | 3rd pair: 500 × 670 | 4th pair: 375 × 300 | ||||||
| 4th pair: 233–358 × 389–496 (316 × 447) | 4th pair: 350 × 500 | |||||||
| Oral sucker | 62–99 × 51–102 (83 × 70) | 29–30 × 28–30(30 × 29) | 28–45 * | 56 × 40[27–56 × 24–40] | – × 100 | 40 × 30 | ||
| Pharynx | 63–93 × 49–58 (82 × 55) | 40–13 × 24–29 (42 × 26) | 40–58 × 23–35 | [44–68 × 26–36] | 100 × 70 | 75 × 45 | ||
| Vagina | 244–359 × 191–250 (302 × 221) | 10–40 (35) * | Pads: 60–80 × 20–30 | 54* | 600 × 350 | Right pad: 55 × 24 | ||
| Left pad: 70 × 24 | ||||||||
| Genital atrium | 92–321 × 112–348 (225 × 228) | 40–70 * | 600 × 300 | |||||
| Large anchor | 43–57 (50) | 34–90(64) | 85–105 | 135 | 68 [85–120] | 75 | 100 | 145 |
| Small anchor | 39–42(41) | 20–31(25) | 20–40 | 45 | 34 [24–34] | 15 | 40 | |
| Eggs | 125–193 × 91–137 (156 × 114) | 182–196 × 74 (196 × 74) | 180–260 × 70–160 | 270 × 91 | 168–203 × 72–80 [103–221 × 44–105] | 250 × 150 | 220 × 110 | |
| Egg filaments | 411–719 (518) | up to 200 | 100 [anterior: 100–179, posterior: 100–161] | 250 | ||||
| Testes number | 185–246 | 30–35 | 13–35 | 26 [32–40] | Numerous |
The width of the body given for N. extensicaudum is that of the third region. The data for N. euthynni in square brackets are from Millemann (1956) [21].
A., Atlantic Ocean. M., Mediterranean Sea. P., Pacific Ocean.
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