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Table II.
Comparison of key taxonomic characteristics between Neoechinorhynchus manubriensis n. sp. and related species from marine fish in Asia.
| Characters | N. manubriensis n. sp. This paper |
N. (N.) johnii Yamaguti, 1939 Gupta & Jain, 1983 |
“N. johnii” Bilqees, 1972 |
N. (N.) tylosuri Yamaguti, 1939 |
N. topseyi Podder, 1937 Gupta & Jain, 1983 |
|---|---|---|---|---|---|
| Distribution | Halong Bay, Vietnam | East China Sea, Arabian Sea | Karachi Coast, Pakistan | Russia, Japan, China, Iran, Black Sea | West coast of India, Arabian Sea |
| Host | Jonius carouna | Jonius goma | Protonibea diacanthus | Enchelycore | Filimanus |
| Nibea albiflora Pennahia argentata | Protonibea diacanthus | Qonius goma) | schismatorhynchus | heptadactylus | |
| Prob. Hook L ♂♂ | 98–112, 25–27, 25–27 | 89–93, 20–24, 20–24 | 100, 30–40, 17–20 | 63–69, 30, 30–35 | 81–87, 26–28, 21–24 |
| (ant, mid, post) ♀♀ | 98–102, 27, 27 | 90–100, 21–24, 21–24 | 80–90, 50–60, 19–20 | 75, 35, 35 | 85–93, 28–30, 24–28 |
| Ant. hook root | With large manubrium | No manubrium | No manubrium | No manubrium | No manubrium |
| Pseudo-retractors | Present | Absent | Absent | Absent | Absent |
| Cephalic ganglion | Triangular | Round | Round | Oval | Ovoid/ameboid |
| Lemnisci | Equal | Unequal | Subequal | Unequal | Subequal |
| Testes | Tubular | Elongate | Ant. oval, post. tubular | Elliptical to cylindrical | Ovoid/elongate |
| Cement gland | Long, 16–20 nuclei | Long, 12–13 nuclei | Long, many nuclei | Long, 22 nuclei | Rounded/elongate |
| Vagina | Simple | Complex bulb with folds | Complex bulb with folds | Simple, twisted | Simple |
| Female gonopore | Terminal | Subterminal | Subterminal | Subterminal | Subterminal |
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