Open Access
Research Article

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].

*

Diameter.

**

Ratio large clamp/body length.

***

Ratio small clamp/body length.

A., Atlantic Ocean. M., Mediterranean Sea. P., Pacific Ocean.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.