Table 2
Morphometric comparisons of Rhadinorhynchus cololabis. Abbreviations: TL, trunk length; SP, size of proboscis; NRP, number of longitudinal rows of proboscis hooks; NHPR, number of hooks per longitudinal row; SAS, size of anterior trunk spines; SPS, size of posterior trunk spines; SPR, size of proboscis receptacle; SAT, size of anterior testis; SPT, size of posterior testis; LL, length of lemnisci; NCG, number of cement glands; SE, size of eggs. All measurements are in millimetres.
| Source | Present study |
Laurs & McCauley, 1964 [23] |
||||
|---|---|---|---|---|---|---|
| Host |
Cololabis saira
|
Cololabis saira
|
||||
| Characteristics | Morphotype I |
Morphotype II |
||||
| Male (n = 26) | Female (n = 4) | Male (n = 4) | Female (n = 23) | Male (n = 6) | Female (n = 6) | |
| TL | 5.77–11.1 | 9.78–26.6 | 7.67–9.09 | 9.76–24.69 | 9.20–12.2 | 18.0–26.7 |
| SP | 1.26–1.84 × 0.16–0.23 | 2.03–2.42 × 0.22–0.26 | 1.47–1.70 × 0.19–0.20 | 1.65–2.09 × 0.20–0.26 | 1.60–1.96 × 0.13–0.20 | – |
| NRP | 10–12 | 10–12 | 10–12 | 10–12 | 10 | 10–12 |
| NHPR | 20–22 | 20 | 20 | 20–21 | 20–21 | – |
| SAS | 0.028–0.068 | 0.039–0.068 | 0.034–0.048 | 0.034–0.077 | 0.028–0.046 | 0.041–0.059 |
| SPS | 0.033–0.072 | 0.058–0.092 | 0.044–0.063 | 0.053–0.089 | 0.034–0.051 | 0.060–0.074 |
| SPR | 2.15–3.02 × 0.24–0.37 | 2.66–4.12 × 0.27–0.42 | 2.36–2.63 × 0.23–0.32 | 2.93–3.97 × 0.24–0.38 | 2.40–3.14 × 0.23–0.30 | 2.32–3.50 × 0.26–0.33 |
| LL | 1.54–2.98 | 2.02–2.15 | 2.17–2.44 | 1.59–3.37 | 2.40–3.14 | 2.32–3.50 |
| SAT | 0.61–1.80 × 0.17–0.56 | N/A | 0.98–1.39 × 0.32–0.59 | N/A | 1.20–1.76 × 0.40–0.70 | N/A |
| SPT | 0.66–1.68 × 0.27–0.51 | N/A | 0.88–1.44 × 0.29–0.51 | N/A | 0.80–2.20 × 0.35–0.60 | N/A |
| NCG | 4 | N/A | 4 | N/A | 4 | N/A |
| SE | N/A | 0.048–0.073 × 0.015–0.039 | N/A | 0.034–0.097 × 0.01–0.02 | N/A | 0.057–0.075 × 0.009–0.014 |
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