Table 5
Relative placement of some organs as % measurements from anterior end and average body measurements in micrometer for polystomes collected from Pseudemys nelsoni Carr, originally regarded as Uteropolystomoides nelsoni (Du Preez & Van Rooyen 2015) and from Pseudemys concinna (Le Conte), originally regarded as Polystomoides stunkardi Harwood, 1931. The fourth column combines measurements obtained from both samples. Measurements are presented as the range followed in parenthesis by the mean, standard deviation, and sample size.
| Morphological characteristics | Sample collected from Pseudemys nelsoni | Sample collected from Pseudemys concinna | Combined set of data |
|---|---|---|---|
| Body length (BL) | 4,730–7,745 (6,303 ± 965; 10) | 5,408–10,691 (7,182 ± 1,653; 10) | 4,730–10,691 (6,743 ± 1,392; 20) |
| Greatest width (GW) | 1,761–2,865 (2,408 ± 373; 10) | 1,859–3,058 (2,490 ± 404; 10) | 1,761–3,058 (2,449 ± 381; 20) |
| Vaginal position from anterior as % | 29–36% (32% ± 2%; 10) | 28–38% (32% ± 3%; 10) | 28–38% (32% ± 2%; 18) |
| BL / GW | 2.2–3.9 (2.7 ± 0.5; 10) | 2.3–3.6 (2.9 ± 0.4; 10) | 2.2–3.9 (2.8 ± 0.5; 20) |
| Oral disk width | 684–1,110 (927 ± 136; 10) | 773–1,281 (997 ± 168; 10) | 684–1,281 (962 ± 153; 20) |
| Pharynx length | 417–676 (548 ± 77; 10) | 455–661 (560 ± 61; 10) | 417–676 (554 ± 68; 20) |
| Pharynx width | 619–959 (756 ± 98; 10) | 750–954 (822 ± 97; 10) | 619–959 (783 ± 93; 20) |
| Haptor length (HL) | 1,202–1,665 (1,423 ± 168; 10) | 1,130–2,043 (1,496 ± 270; 10) | 1,130–2,043 (1,459 ± 222; 20) |
| Haptor width | 1,756–2,302 (2,070 ± 184; 10) | 1,409–2,657 (1,982 ± 356; 10) | 1,409–2,657 (2,026 ± 179; 20) |
| HL as % of BL | 17–26 (23 ± 2.9; 10) | 16–23 (21 ± 2.0; 10) | 16–26% (22% ± 2.6; 20) |
| Haptoral sucker diameter | 343–477 (419 ± 34; 51) | 382–462 (418 ± 20; 53) | 343–477 (419 ± 28; 104) |
| Ovary length | 164–281 (213 ± 35; 9) | 131–350 (258 ± 76; 7) | 131–350 (233 ± 59; 16) |
| Ovary width | 91–142 (112 ± 18; 9) | 70–192 (139 ± 39; 7) | 70–192 (124 ± 31; 16) |
| Egg length | 137–263 (221 ± 49; 11) | 241–269 (255 ± 13; 5) | 137–269 (232 ± 43; 16) |
| Egg width | 139–180 (160 ± 14; 11) | 184–193 (189 ± 4; 5) | 137–193 (169 ± 19; 16) |
| Number of eggs in utero | 0–8 (3.4 ± 2.6; 10) | 0–12 (3.8 ± 5; 10) | 0–12 (3.6 ± 4.1; 20 |
| Vagina length | 360–860 (553 ± 124; 20) | 353–722 (578 ± 109; 18) | 353–860 (565 ± 156; 38) |
| Genital pore position from anterior as % | 18–24% (22% ± 2%; 9) | 18–24% (20% ± 2; 10) | 18–24% (21% ± 2; 19) |
| Genital bulb diameter | 438–847 (625 ± 130; 10) | 498–781 (675 ± 88; 10) | 438–847 (650 ± 111; 20) |
| Genital spines number | 123–136 (130 ± 6; 7) | 118–124 (120 ± 3; 7) | 118–136 (125 ± 7; 14) |
| Genital spine length | 96–98 (97 ± 1; 7) | 83–98 (90 ± 5; 13) | 83–98 (93 ± 3; 20) |
| Testis length | 342–679 (471 ± 100; 10) | 514–892 (628 ± 127; 9) | 342–892 (545 ±136; 19) |
| Testis width | 425–778 (617 ± 128; 10) | 454–747 (450 ± 111; 9) | 425–778 (632 ± 118; 19) |
| Hamulus handle length | 105–145 (121 ± 15; 7) | 108–175 (145 ± 22; 12) | 105–175 (137 ± 22; 19) |
| Hamulus guard length | 86–120 (104 ± 17; 5) | 105–167 (131 ± 23,9; 7) | 86–167 (121 ± 24; 12) |
| Hamulus hook length | 60–78 (67 ± 7; 6) | 59–86 (73; ± 9; 7) | 59–86 (70 ± 9; 13) |
| Marginal hooklet 1 length | 25–30 (28 ± 3; 14) | 25–28 (28 ± 0.9; 11) | 25–30 (28 ± 2; 25) |
| Marginal hooklet 2–8 length | 25–29 (27 ± 3; 16) | 24–29 (28 ± 1.3; 18) | 24–29 (27 ± 3; 34) |
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