Open Access
Table I.
Comparison between measurements (µm) of Heligmosomoides neopolygyrus from Apodemuspeninsulae in Japan (Asakawa & Ohbayashi, 1986) and from China (this article).
| Asakawa and Ohbayashi, 1986 | This article | |||
|---|---|---|---|---|
| Min-Max | Min-Max | |||
| Male | Number of specimens observed | 5 | 13 | |
| Total length | 7,60–10,000 | 4,625–6,400 | ||
| Maximum width | 150–200 | 80–100 | ||
| Length of cephalic vesicle | 54–83 | 40–65 | ||
| Width of cephalic vesicle | 37–56 | 30–40 | ||
| Distance from nerve ring to anterior extremity | 188–223 | 130–170 | ||
| Distance from deirids to anterior extremity | not observed | 210 | ||
| Distance from excretory pore to anterior extremity | 254–464 | 195–390 | ||
| Length of esophagus | 557–636 | 465–650 | ||
| Ratio esophagus / total length | 6 to 7 % | 7 to 12 % | ||
| Length of right spicule | 510–640 | 370–620 | ||
| Length of left spicule | 510–640 | 370–620 | ||
| Ratio spicule length/ Total length | 6 to 7 % | 7 to 12 % | ||
| Gubernaculum | no data | absent | ||
| Number of ridges at midbody | 28–35 | 24–27 | ||
| Female | Number of specimens observed | 5 | 10 | |
| Total length | 17,500–27,300 | 9,600–11,500 | ||
| Maximum width | 150–320 | 70–150 | ||
| Length of cephalic vesicle | 51–76 | 45–60 | ||
| Width of cephalic vesicle | 48–60 | 35–40 | ||
| Distance from nerve ring to anterior extremity | 127–191 | 115–170 | ||
| Distance from deirids to anterior extremity | n.o. | 230 | ||
| Distance from excretory pore to anterior extremity | 239–347 | 210–300 | ||
| Length of esophagus | 378–576 | 530–685 | ||
| Ratio esophagus / Total length | 2 % | 3 to 7 % | ||
| Length of caudal tip | no data | 3–20 | ||
| Length of vagina vera | no data | 12–25 | ||
| Length of tail | 108–118 | 70–115 | ||
| Distance from vulvar opening to tail | 315–410 | 230–330 | ||
| General Branch | Length of vestibule | no data | 385–570 | |
| Length of sphincter | no data | 40–60 | ||
| Width of sphincter | no data | 30–50 | ||
| Length of infundibulum | no data | 130–240 | ||
| Length of uterine branch | no data | 1,170–2,370 | ||
| Ratio uterus/ Total length | no data | 10 to 22 % | ||
| Eggs | Number of eggs | no data | 8–45 | |
| Length of eggs | 76–87 | 50–75 | ||
| Width of eggs | 54–60 | 30–50 | ||
| Number of ridges at midbody | 29–33 | 25–26 | ||
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