Table 2.
Morphometrics of Aporcelaimoides minor sp. n. and Aporcelaimoides silvaticum sp. n. Measurements in µm (except L, in mm), and in the form: mean ± standard deviation (range).
| Species | Aporcelaimoides minor sp. n. | Aporcelaimoides silvaticum sp. n. | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Population | Tay Yen Tu Natural Reserve | Cao Bang Natural Reserve | Chu Yang Sin National Park | Total Range | Cuc Phuong National Park | ||||
| Holotype | Paratypes | Holotype | Paratypes | ||||||
| Character | n | ♀ | 2♀♀ | 2♀♀ | 5♀♀ | 10♀♀ | ♀ | ♀ | 4♂♂ |
| L | 2.12 | 2.09, 2.24 | 2.31, 2.17 | 2.46 ± 0.14 (2.29–2.61) | 2.09–2.61 | 2.60 | 2.56 | 2.31 ± 0.24 (2.09–2.58) | |
| a | 24 | ?, 23 | 29, 26 | 28.8 ± 2.9 (26–33) | 23–33 | 29 | ? | 30.7 ± 2.1 (28–33) | |
| b | 3.3 | 3.3, 3.6 | 4.0, 3.5 | 3.9 ± 0.3 (3.7–4.4) | 3.3–4.4 | 3.6 | 3.8 | 3.7 ± 0.4 (3.4–4.2) | |
| c | 117 | 145, 98 | 142, 146 | 109.0 ± 17.2 (90–137) | 90–146 | 83 | 69 | 79.9 ± 10.8 (67–94) | |
| c’ | 0.3 | 0.3, 0.4 | 0.3 (n=2) | 0.5 ± 0.1 (0.3–0.6) | 0.3–0.6 | 0.7 | 0.7 | 0.6 ± 0.0 (0.6–0.7) | |
| V | 55 | 56, 52 | 50, 53 | 109.0 ± 17.2 (90–137) | 48–56 | 60 | 58 | - | |
| Lip region diam. | 19 | 20, 19 | 20, 19 | 19.4 ± 0.7 (19–20) | 19–20 | 17 | 17 | 17.2 ± 0.3 (17–18) | |
| Mural odontostyle length at ventral side | 14 | 15 (n=2) | 17, 16 | 14.3 ± 0.6 (14–15) | 14–16 | 12 | 12 | 11.3 ± 0.2 (11–12) | |
| Mural odontostyle length at dorsal side | 15 | 16 (n=2) | 14, 15 | 16.0 ± 0.7 (15–17) | 15–17 | 13 | 13 | 12.7 ± 0.2 (12–13) | |
| Odontophore length | 33 | 33 (n=2) | 33 (n=2) | 33.2 ± 0.7 (33–34) | 33–34 | 47 | 46 | 40.3 ± 1.3 (39–41) | |
| Guiding ring from ant. end | 14 | 15 (n=2) | 14, ? | 12.7 ± 1.0 (12–14) | 12–15 | 12 | 12 | 10.9 ± 2.0 (9–13) | |
| Neck length | 646 | 632, 630 | 579, 618 | 626 ± 28 (592–649) | 579–649 | 720 | 668 | 625 ± 40 (597–684) | |
| Pharyngeal expansion length | 423 | 400, 380 | 331, 382 | 391 ± 27 (360–420) | 331–423 | 452 | 400 | 383 ± 37 (353–436) | |
| Diam. at neck base | 81 | 80, 90 | 67, 74 | 83.9 ± 9.7 (69–93) | 67–93 | 87 | ? | 71.9 ± 5.8 (65–79) | |
| at midbody | 87 | ?, 97 | 80, 83 | 86.0 ± 9.6 (70–95) | 70–97 | 88 | ? | 75.1 ± 4.8 (69–80) | |
| at anus | 57 | 51 (n=2) | 49, 55 | 51.2 ± 5.4 (46–60) | 46–60 | 48 | 51 | 46.3 ± 1.1 (45–48) | |
| Prerectum length | 79 | 76, ? | 73, 95 | 97.0 ± 9.5 (87–106) | 73–106 | 117 | 114 | 148.4 ± 5.6 (142–153) | |
| Rectum/cloaca length | 47 | 50 (n=2) | 50, 42 | 52.7 ± 5.3 (47–60) | 42–60 | 55 | 42 | 61.5 ± 4.9 (56–66) | |
| Tail length | 18 | 14, 23 | 16, 15 | 22.9 ± 3.4 (17–26) | 14–26 | 31 | 37 | 29.1 ± 2.4 (27–31) | |
| Spicule length | - | - | - | - | - | - | - | 70.4 ± 5.1 (64–75) | |
| Ventromedian supplements | - | - | - | - | - | - | - | 2.5 ± 0.6 (2–3) | |