Table 1: Morphometric comparison of the Pseudochauhanea specimens collected in this study with the Pseudochauhanea species recorded in the Neotropics.
Tabla 1. Comparación morfométrica de los especímenes de Pseudochauhanea recolectados en este estudio con las especies de Pseudochauhanea registradas en el Neotrópico.
| Characteristic | Pseudochauhanea mexicana | Pseudochauhanea mexicana | Pseudochauhanea elongata | Pseudochauhanea sphyraenae | Pseudochauhanea elegans |
| Host | Sphyraena ensis | Sphyraena ensis | Labeo rohita | Sphyraena barracuda | Sphyraena barracuda |
| Nº specimens | n = 30 | n = 14 | n = 5 | n = 6 | |
| Locality | Peru | Mexico | Pakistan, Mexico | Hawaii | Venezuela |
| Ocean | Pacific | Pacific, Atlantic | Indian, Pacific | Atlantic | Atlantic |
| Reference | Present study | Lamothe-Argumedo (1966) | Kritsky et al. (1972) | Yamaguti (1965) | Fuentes-Zambrano (1997) |
| Whole body length (µm) | 4,646 (2,325–7,300) | 2,093–3,992 | 11,700 (8,500–5,000) | 4,450–5,800 | 1,900–2,250 |
| Max. body width (µm) | 393 (230–650) | 434–595 | 810 (500–1,000) | 320–1,400 | 252–280 |
| Length of suckers (µm) | 70 (40–90) | 60–90 | 114 (98–131) | 72–112 | 34–37 |
| Width of suckers (µm) | 41 (20–55) | 32–37 | 69 (53–79) | 37–60 | 20–24 |
| Ppharynx length (µm) | 46 (30–70) | 37–45 | 56 (53–62) | 37–58 | 25–32 |
| Length of the esophagus (µm) | 1,229 (950–1,600) | 418–550 | -- | 830–2,000 | 432–594 |
| Haptor length (µm) | 1,325 (660–1,750) | -- | 2970 (2,020–4,400) | -- | 450–486 |
| Width haptor | 445 (250–700) | -- | 788 (583–968) | -- | -- |
| Length of clamp (middle) (µm) | 46 (30–55) | 37–45 | 86 (72–93) | -- | 26–36 |
| Width of clamp (middle) (µm) | 36 (25–45) | 33–37 | 75 (64–90) | -- | 27–34 |
| N° of clamps | 48–87 | 39–67 | -- | 58–87 | -- |
| N° of clamps-right side | 30–35 | 25–35 | 35–50 | 28–50 | 23–29 |
| N° of clamps-left side | 29–40 | 20–32 | 29–61 | 25–37 | 22–28 |
| N° of testes | 24–50 | 22–27 | 75 | 70–100 | 23–35 |
| Cirrus sac length (µm) | 114 (80–150) | 80–97 | 135 (121–157) | 90–160 | 47 |
| Distance from cirrus to anterior end (µm) | 365 (250–440) | -- | -- | 360–840 | -- |
| Ovary length (µm) | 592 (506–666) | -- | 1,120 (990–1,320) | 860–1,400 | 486–517 |
| Vagina width (µm) | 25 (22–30) | 26–37 | -- | -- | -- |
| Distance from vagina to anterior end (µm) | 1,234 (1,000–1,690) | -- | -- | -- | 522–648 |
| Egg length (µm) | 180 (150–250) | 209–213 | -- | 220–230 | -- |
| Egg width (µm) | 44 (25–60) | 42–48 | -- | 40 | -- |