Fig. 1
Fig. 2
Fig. 4
Fig. 3
Fig. 5
Morphometrics of Acrostichus nudicapitatus (Steiner, 1914) Massey, 1962 as provided by different investigators over the time
| Character | Steiner (1914) (from mud of ditch) | Weingartner (1955) (from compost) | Gagarin (2002)(from sewage) | Gagarin (2002) (from cow manure) | Andrassy (2005)(from dung) | Mahamood (2014) (from sewage) | Present population (from leaf litter) |
|---|---|---|---|---|---|---|---|
| FEMALE | |||||||
| Body Length | 579 - 699 | 540-1260 | 741-938 | 610-736 | 700-1050 | 552 - 72 | 699-701 |
| Body width | 22-28 | ~26-45 | 38-42 | ~36 - 38 | ~35-40 | 23-34 | 26-31 |
| a | 20.8-28.0 | 20.6-27.4 | 19-22 | 16-20 | 20-26 | 20.2-25.2 | 22.6-24.1 |
| b | 5.0-5.5 | 5.4-8.8 | 5.4-6.4 | 5.7-6.8 | 5.0-7.2 | 5.1-6.3 | 6.6-6.8 |
| c | 2.8-3.2 | 2.9-4.3 | 2.9-3.4 | 2.4-2.9 | 2.9-4.3 | 2.7-3.3 | 2.7-3.3 |
| c' | - | -~12.4 | 11.5-15.4 | 10.9-13.8 | 11.5-15 | 11.5-16.3 | 14.0-15.8 |
| V | ~<50 | 38.6-41.0 | 39.2-44.3 | 36.2-38.8 | 39-41 | 38.7-42.1 | 38.3-42.0 |
| Stoma length | - | -11 | 8.5-11.0 | 8.5-10.0 | 9-11 | 9-10 | 8-9 |
| Pharynx length | 112-126 | -14510 | 126-147 | 102-118 | ~140-145 | 104-121 | 98-102 |
| Tail length | 187-220 | ~186-293 | 238-287 | 240 - 281 | 240-281240 | 179-238 | 213-253 |
| MALE | |||||||
| Body length | 558 - 565 | 470 - 920 | 650-780 | 487 - 575 | 470-800 | 480-611 | 567 - 591 |
| Body width | 22-25 | ~21 - 30 | ~31-36 | ~21-30 | -2620-26 | 20-26 | 22-24 |
| a | 22.3-26.0 | 21.5-30.6 | 18-25 | 16-2 | 21-31 | 21.5-26.3 | 24.4-24.7 |
| b | 4.8-5.2 | 5.9-7.6 | 5.1-5.7 | 5.2-6.3 | 4.8-7.0 | 4.9-5.5 | 5.2-6.3 |
| c | 2.8-3.2 | 3.3-5.6 | 3.4-4.2 | 2.6-3.2 | 3.0-5.6 | 3.2-3.8 | 3.2-3.8 |
| c' | ~11.5 | ~7.1-8.2 | 7.1-9.4 | 7.6-11.0 | 7-9 | 7.6-9.4 | 7.6-11.0 |
| Pharynx length | 108-115 | ~79-120 | 122-137 | 90-109 | ~98-114 | 87-111 | 91-96 |
| Tail length | 173-198 | ~142-164 | 168-210 | 161-217 | 170-20 | 126-175 | 161-217 |
| Spicule length | ~31 | ~36 - 38 | 35-39 | 32-36 | 35-40 | 28-35 | 29-32 |
| Gubernaculum length | ~252 | ~22-25 | 28-31 | 22-28 | 28-30 | 22-25 | 24-25 |
Morphometrics of present population of Acrostichus nudicapitatus (Steiner, 1914) Massey, 1962
| Characters | Female (n=10) | Male (n=8) |
|---|---|---|
| Body length | 700.0 ±1.0 (699–701) | 579.3 ±10.0 (567–591) |
| Body diameter | 28.2 ±2.1 (26–31) | 23.0 ± 0.7 (22–24) |
| a | 23.3 ±0.7 (22.6–24.1) | 25.2 ±0.6 (24.4–24.7) |
| b | 6.7 ±0.1 (6.6–6.8) | 6.1 ±0.1(5.9–6.3) |
| c | 3.0 ±0.2 (2.7–3.3) | 3.6 ±0.1 (3.4–3.8) |
| c' | 14.9 ±0.9 (14.0–15.8) | 8.5 ±0.7 (8.1–9.0) |
| V/T | 40.1 ±1.8(38.3–42.0) | 47.9 ±1.3 (46.2–49.9) |
| G1 | 27.6 ±3.0 (24.6–30.6) | – |
| G2 | 29.1 ±2.5(26.6–31.6) | – |
| Lip region height | 2.2 ±0.3 (2–3) | 2.2 ±0.4 (2–3) |
| Lip region diameter | 7.0 ±0.9 (7–8) | 6.1 ±0.4(6–7) |
| Stoma length | 8.5 ±0.2 (8–9) | 7.4 ±0.9 (7–9) |
| Stoma diameter | 3.5 ±0.5 (3–4) | 3.2 ±0.4 (2–3) |
| Pharynx length | 100.5 ±1.6 (98–102) | 93.7 ±1.9 (91–96) |
| Nerve ring - anterior end | 74.0 ±1.0 (73–75) | 70.5 ±0.8 (70–72) |
| Secretory-excretory pore - anterior end | 91.7 ±2.6 (89–95) | 86.0 ±1.1(85–87) |
| Rectum length | 22.1± 1.5(20–24) | 27.1 ±1.7(25–29) |
| Anal body diameter | 16.0 ±1.2(15–18) | 18.7 ±1.3(17–20) |
| Tail length | 230.6 ±16.9 (213–253) | 160.2 ±7.2 (148–167) |
| Spicule length | - | 30.5 ± 1.1 (29–32) |
| Gubernaculum length | - | 24.7 ±0.4 (24–25) |