Table 2: Morphometric comparison of Scomberocotyle scomberomori specimens reported in America.
Tabla 2. Comparación morfométrica de los especímenes de Scomberocotyle scomberomori registrados en América.
| Characteristic | Sphyraena ensis | Scomberomorus cavalla, S. maculatus | Scomberomorus cavalla | Scomberomorus concolor | Scomberomorus maculatus | Scomberomorus sierra |
| Locality | Tumbes, Peru | Florida, Texas; USA | Brasil; Colombia | Sonora, Mexico | Florida, USA; Sontecomapan, Mexico | Buenavista, Colombia; El Potrero, El Salvador; Sonora, Mexico; Punta Chame, Panama |
| Reference | Presente estúdio | Hargis (1956) | Hayward and Rohde (1999) | Hayward and Rohde (1999) | Hayward and Rohde (1999) | Hayward and Rohde (1999) |
| Nº specimens | 3 | 5 | 1 | 1 | 1 | 14 |
| Whole body length (µm) | 6,500–7,625 | 5,500–6,500 | 6.1 | 2.76 | 2.84 | 1,990–4,035 |
| Max. body width (µm) | 250–305 | 500–700 | -- | -- | -- | -- |
| Length of suckers (µm) | 67.5–37.5 | 73–76 | -- | -- | -- | -- |
| Width of suckers (µm) | 37.5–82.5 | 47–58 | -- | -- | -- | -- |
| Length haptor (µm) | 2,200–2,800 | 2,200–2,400 | 3 | 1,11 | 1,725 | 1,020–2,070 |
| N° of clamps | 93–101 | 134 | 156 | 57 | 84 | 65–114 |
| N° of clamps-right side | 35–43 | 50 | 65 | 25 | 26 | 24–39 |
| N° of clamps left side | 58 | 84 | 91 | 32 | 58 | 41–75 |
| Length of clamp (middle) (µm) | 90–100 | 88–95 | 103 | 76 | 94 | 69–91 |
| Width of clamp (middle) (µm) | 65–67.5 | 43–68 | -- | -- | -- | -- |
| Hamuli length (µm) | 22.5–25 | 30 | 26–30 | 28 | 28–29 | 18–22 |
| Pharynx length (µm) | 47.5–62.5 | 55–67 | -- | -- | -- | -- |
| Pharynx width (µm) | 27.5–27.5 | 40–42 | -- | -- | -- | -- |
| N° of testes | 23–28 | 27–38 | 25–40 | -- | -- | -- |
| Cirrus sac length (µm) | 150–187.5 | 110–140 | -- | -- | -- | -- |
| Length of the anterior spines of the cirrus (µm) | 14–18 | 12–16 | 10–12 | 8–11 | 13 | 8–15 |
| Llength of the posterior spines of the cirrus (µm) | 27.5–35 | 61–85 | 78 | -- | 56 | 53–70 |
| Length of vagina spines (µm) | 30–37.5 | -- | 37–39 | -- | 22–23 | 23–38 |
| Egg length (µm) | 187.5–195 | 94–182 | -- | -- | -- | -- |
| Egg width (µm) | 57.5–62.5 | 41–55 | -- | -- | -- | -- |