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Table 2
Measurements of specimens of P. samaesarnensis n. sp. from the type host, E. lanceolatus from the Gulf of Thailand, compared with P. nhatrangensis from E. coioides and E. bleekeri from Nha Trang Bay, Vietnam.
| Species host | P. samaesarnensis n. sp. E. lanceolatus | P. nhatrangensis E. coioides and E. bleekeri (details from Dang et al., 2013 [7]) |
|---|---|---|
| Total body length | 745 (679–821, n = 6) | 458 (370–570, n = 10) |
| Body width | 198 (160–234, n = 6) | 155 (120–185, n = 10) |
| Haptor width | 220 (178–243, n = 6) | 157 (130–188, n = 7) |
| Quadriloculate organ | ||
| Inner length | 56 (51–60, n = 6) | 58 (52–65, n = 10) |
| Cone length | 12 (10–13, n = 6) | 14 (12–15, n = 10) |
| Tube length | 15 (13–17, n = 6) | 21 (18–25, n = 10) |
| Sclerotized vagina length | 27 (25–29, n = 6) | 29 (25–33, n = 10) |
| Ventral hamulus | ||
| Outer length | 48 (45–51, n = 6) | 48 (40–58, n = 10) |
| Inner length | 37 (35–39, n = 6) | 38 (33–40, n = 10) |
| Dorsal hamulus | ||
| Outer length | 41 (40–41, n = 6) | 38 (33–43, n = 10) |
| Inner length | 25 (24–27, n = 6) | 24 (23–25, n = 10) |
| Ventral bar | ||
| Length | 94 (92–96, n = 6) | 95 (90–103, n = 10) |
| Width | 15 (14–16, n = 6) | 11 (9–14, n = 10) |
| Dorsal bar | ||
| Length | 61 (57–67, n = 6) | 61 (55–68, n = 10) |
| Width | 17 (16–19, n = 6) | 12 (11–14, n = 10) |
| Number of rows of rodlets | 9–12 (n = 4) including 1–2 closed ovals | Always 10 (n = 6) and 1 closed circle |
| Prevalence | 100% (one specimen examined and infected) | 27% (12/45) on E. coioides and 10% (4/40) on E. bleekeri |
Note that P. nhatrangensis is not a valid species.
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