Table 3.
Morphometric comparisons of Baylisascaris procyonis (measurements in millimetres)
| Characteristics | Present study | Stefanski and Zarnowski (1951) | Hartwich (1962) | Sprent (1968) | Overstreet (1970) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | Female | Male | Female | Male | Female | Male | Female | Male | Female | Male | Female | |
| BL | 66–72 | 99–152 | 62–76 | 90–122 | 62–77 | 90–200 | 90 | 200 | 57–99 | 87–160 | 57–119 | 49–189 |
| OL | 3.24–3.44 | 3.78–4.27 | 3.90 | 4.50 | 3.30–4.60 | – | – | – | 2.23–4.15 | 2.96–4.54 | – | – |
| LSL | 0.41–0.49 | N/A | 0.51–0.55 | N/A | 0.51–0.55 | N/A | 0.61 | N/A | 0.38–0.57 | N/A | 0.38–0.62 | N/A |
| RSL | 0.44–0.53 | N/A | 0.53–0.59 | N/A | 0.53–0.61 | N/A | 0.61 | N/A | 0.39–0.52 | N/A | 0.38–0.62 | N/A |
| PRP | 33–42 pairs | N/A | 40–44 pairs | N/A | 27–43 pair | N/A | 43 pair | N/A | 36–50 pairs | N/A | 28–49 pairs | N/A |
| PDP | 1 pair | N/A | 1 pair | N/A | 1 pair | N/A | – | N/A | 1 pair | N/A | 1 pair | N/A |
| PSP | 1 pair double + 3 pairs single | N/A | 1 pair double + 3 pairs single | N/A | 1 pair double + 3 pairs single | N/A | – | N/A | 1 pair double + 3 pairs single | N/A | 1 pair double + 3 pairs single | N/A |
| VA | N/A | 31–42 | N/A | 21–28 | N/A | 21–28 | N/A | – | N/A | 31.4–49.5 | N/A | – |
| VA/BL (%) | N/A | 27.6–31.3 | N/A | – | N/A | – | N/A | – | N/A | 30–36 | N/A | 28.0–36.0 |
| TL | 0.42–0.45 | 0.59–1.02 | 0.35–0.40 | 0.74–0.94 | 0.35–0.52 | 0.74–0.94 | 0.52 | 0.94 | 0.35–0.52 | 0.77–1.24 | 0.36–0.59 | 0.54–1.22 |
| SE | N/A | 0.07–0.08 × 0.05–0.07 | N/A | 0.08 × 0.05–0.06 | N/A | 0.07–0.08 × 0.05–0.07 | N/A | 0.08 × 0.07 | N/A | 0.07–0.08 × 0.05–0.07 | N/A | – |
| OL/BL (%) | 4.78–4.91 | 2.49–3.87 | – | – | – | – | – | – | 3.50–4.70 | 2.70–3.50 | 3.09–5.20 | 2.90–5.60 |
| Host | Procyon lotor | Procyon lotor | Procyon lotor | Procyon lotor | Potos flavus | Procyon lotor | ||||||
| Locality | China | Poland | ? | USA, Canada | USA | USA | ||||||
BL, length of body; OL, length of oesophagus; RSL, length of right spicule; LSL, length of left spicule; PRP, number of precloacal papillae; PDP, number of paracloacal double papillae; PSP, number of postcloacal papillae; SE, size of egg; VA, distance from vulva to anterior extremity; TL, length of tail; SE, size of eggs. N/A represents ‘Not applicable’.