Open Access
Table 2
Morphometric comparisons between our specimens of Neoechinorhyhchus johnii from Vietnam and those reported in previous descriptions from Japan and the Indian Ocean.
| Characters | Yamaguti (1939) | Bilqees (1972) | Gupta and Jain (1983) | Present paper |
|---|---|---|---|---|
| East China Sea | Karachi coast, Pakistan | off Panaji, Bombay, India | Pacific Ocean off Vietnam | |
| Hosts | Johnius goma | Pseudosciaena diacanthus | Pseudosciaena diacanthus | Eleutheronema tetradactylum, Otolithes ruber, Johnius carouna, Johnius sp. |
| Specimens described | 4 females | 1 male, 4 females | 6 of 51 males, 0 of 35 females | 11 males, 32 females |
| Males | ||||
| Trunk L × W (mm) | ____ | 2.8 × 0.08 | 21.71–26.97 × 0.55–0.65 | 13.35–35.00 (25.26) × 0.35–0.75 (0.51)* |
| Proboscis L × W | ____ | 80 × 80 | 101–142 × 129–191 | 120–157 (136) × 150–167 (146) |
| Hook from ant. | ____ | 100, 30–40, 17–20 | 89–93, 20–24, 20–24 | 67–112 (93), 25–30 (27), 22–27 (25) |
| Neck L × W | ____ | ____ | 142–211 × 146–215 | 114–281 (207) × 146–279 (204) |
| Prob. Receptacle L × W | ____ | 170 × ____ | 406–536 × 130–163 | 300–572 (432) × 92–166 (135) |
| Long lemniscus L × W | ____ | ca. 1.00 | 1.82-2.92 × 0.08-0.11 | 2.24–3.12 (2.51) × 0.06–0.10 (0.08) |
| Short lemniscus L × W | ____ | ca. 1.00 | 1.82–2.92 × 0.08–0.11 | 2.27–3.12 (2.41) × 0.06–0.10 (0.07) |
| Ant. Testis L × W (mm) | ____ | Ovate 0.13 × 0.10 | 1.95–3.44 × 0.23–0.44 | 2.75–8.12 (4.80) × 0.17–0.50 (0.32) |
| Post. Testis L × W (mm) | ____ | Tubular 1.89 × 0.05 | 2.11–4.27 × 0.21–0.42 | 3.00–10.00 (5.75) × 0.20–0.62 (0.32) |
| Cement gland L × W (mm) | ____ | 1.51 × 0.02 | 3.22–4.83 × 0.19–0.34 | 1.15–4.87 (3.01) × 0.12–0.34 (0.21) |
| Cement gland nuclei | ____ | ____ | 12–13 | 16–25 (20.3) |
| Cement reservoir L × W | ____ | 310 × 50 | 406–504 × 195–293 | 364–624 (416) × 104–281 (187) |
| Sperm vesicle L × W | ____ | 250 × 50 | 525–1008 × 146–228 | 520–1144 (888) × 94–250 (177) |
| Saefftigen’s pouch L × W | ____ | ____ | 601–780 × 81–146 | 593–936 (749) × 84–208 (146) |
| Bursa L × W | ____ | Papillated 50 × 100 | 325–861 × 162–552 | 364–624 (489) × 353–676 (469) |
| Females | ||||
| Trunk L × W (mm) | 40.00–63.00 × 0.95–1.10 | 45.00–61.00 × 0.70–1.13 | ____ | 10.00–120.00 (44.75) × 0.27–1.17 (0.64) |
| Proboscis L × W | ____ × 110–120 | 80–160 × 90–160 | ____ | 112–187 (154) × 120–182 (159) |
| Hook from ant. | 90–100, 21–24, 21–24 | 80–90, 50–60, 19–20 | ____ | 62–117 (102), 25–31 (27), 22-30 (26) |
| Neck L × W | 170–250 × 110–130 | 208–302 (246) × 146–281 (196) | ____ | |
| Prob. Receptacle L × W | 400–520 × 90–140 | 38 × ____ | ____ | 255–551 (466) × 87–177 (129) |
| Long lemniscus L × W | 2.50–3.80 × 0.10–0.11 | 2.70–3.30 × ____ | ____ | 2.39–3.33 (2.87) × 0.006–0.18 (0.09) |
| Short lemniscus L × W | 2.50–3.80 × 0.10–0.11 | 2.70–3.30 × ____ | ____ | 2.39–3.17 (2.73) × 0.06–0.15 (0.08) |
| Vagina length | ____ | 200–250 | ____ | 156–260 (209) |
| Uterus length | 250–480 × 80–125 | 300–400 | ____ | 250–572 (454) |
| Uterine bell length | ____ | 140–170 × 100–160 | ____ | 250–624 (477) |
| Reprod. syst. L (mm) | ____ | ____ | ____ | 0.67–1.51 (1.13) |
| Egg L × W | 33 × 18 | 29–30 × 20 | 33–38 × 20–22 | 27–45 (33) × 18–30 (24) |
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.