Open Access
Table 2
Morphometric comparisons among species of Neoechinorhynchus from Mugil cephalus and Chelon auratus in the Mediterranean and the Black Sea in our collections.
| Neoechinorhynchus sp. |
N. personatus |
N. personatus |
N. ponticus n. sp. |
|---|---|---|---|
| Host |
Mugil cephalus |
Mugil cephalus |
Chelon auratus |
| Locality | Tunis, Mediterranean | Black Sea | Black Sea |
| Males | n = 8 | n = 9 | n = 9 |
| Trunk (mm) | 9.55–10.07 (9.80) × 0.87–1.10 (1.0)* | 7.25–10.25 (9.00) × 0.53–0.92 (0.70) | 7.87–8.75 (8.44) × 0.67–1.00 (0.85) |
| Proboscis | 182–205 (190) × 205–225 (213) | 162–218 (200) × 200–242 (224) | 100–145 (127) × 135–175 (151) |
| Hook length | |||
| Ant. | 107–147 (123) | 112–130 (123) | 77–87 (82) |
| Mid. | 70–85 (75) | 65–85 (78) | 40–57 (45) |
| Post. | 53–71 (60) | 57–72 (66) | 30–40 (34) |
| Receptacle | 728–1,019 (882) × 218–281 (253) | 780–936 (852) × 187–291 (221) | 603–728 (653) × 135–187 (157) |
| Lemnisci (mm) | |||
| Short | 3.12–4.25 (3.70) × 0.13–0.19 (0.15) | 2.86–3.26 (3.06) × 0.10–1.3 (1.2) | 1.73–2.75 (2.14) × 0.10–0.15 (0.14) |
| Long | 3.12–4.67 (3.86) × 0.16–0.19 (0.17) | 3.57–4.05 (3.81) × 0.11–0.19 (0.15) | 2.03–2.81 (2.41) × 0.12–0.19 (0.14) |
| Anterior testis (mm) | 1.25–1.70 (1.44) × 0.35–0.50 (0.45) | 0.70–1.50 (1.11) × 0.32–0.45 (0.38) | 0.25–1.00 (0.70) × 0.35–0.50 (0.44) |
| Posterior testis (mm) | 1.25–1.75 (1.49) × 0.25–0.50 (0.43) | 1.00–1.45 (1.19) × 0.30–0.45 (0.35) | 0.50–0.87 (0.63) × 0.40–0.50 (0.44) |
| Cement gland (mm) | 1.67–2.67 (2.09) × 0.37–0.50 (0.45) | 1.00–1.77 (1.29) × 0.22–0.40 (0.31) | 0.75–1.50 (0.96) × 0.45–0.52 (0.49) |
| Cement reservoir | 450–625 (560) × 225 – 350 (300) | 375–520 (465) × 250–312 (270) | 375–500 (431) × 253–375 (310) |
| Saefftigen’s pouch (mm) | Obscured | Obscured | 0.77–1.25 (1.08) × 0.12–0.30 (0.21) |
| Bursa (mm) | 0.42–1.20 (0.72) × 0.40–0.52 (0.47) | 0.50–1.25 (0.94) × 0.20–0.42 (0.30) | – |
| Females | n=8 | n=17 | n=10 |
| Trunk (mm) | 11.00–14.75 (13.65) × 0.77–1.27 (1.05) | 8.00–21.25 (14.48) × 0.50–1.22 (0.91) | 8.37–10.75 (9.73) × 0.57–0.95 (0.82) |
| Proboscis | 162–200 (184) × 205–230 (217) | 187–239 (215) × 208–250 (231) | 112–142 (129) × 132–162 (152) |
| Hook length | |||
| Ant. | 110–137 (124) | 105–142 (123) | 75–132 (90) |
| Mid. | 62–80 (71) | 75–90 (81) | 40–77 (50) |
| Post. | 60–67 (64) | 62–77 (68) | 32–67 (40) |
| Receptacle | 832–1,040 (910) × 218–333 (260) | 707–988 (856) × 198–364 (273) | 634–780 (718) × 156–208 (179) |
| Lemnisci (mm) | |||
| Short | 3.70 × 0.15 | 4.80 × 0.17 | 2.00–2.75 (2.46) × 0.10–0.15 (0.13) |
| Long | 3.90 × 0.17 | 4.86 × 0.17 | 2.50–3.75 (3.33) × 0.12–0.17 (0.14) |
| Eggs | 45–50 (48) × 10–12 (10) | 35–47 (40) × 10–15 (12) | – |
| Reproductive syst. (mm) | 1.25–1.56 (1.44) | 0.96–1.67 (1.29) | 0.73–1.25 (1.09) |
Range (mean) in μm unless otherwise stated.
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