Table 5.
Morphometrics of Pararhyssocolpus paradoxus n.gen., n.comb. (adults, juveniles). All measurements, unless indicated otherwise, are in µm (and in the form: mean±SD (range).
| Locality | King George Island | Livingston Island | Nelson Island | King George Island | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Characters | KGI1 | CDM | S | SDC | DM | M | KGI1 | |||||
| n | ♀(n=8) | ♂ | ♀ | ♂ | ♀ | ♀ | ♀ (n=4) | ♂ | ♀ | J1 | J3 | J4 (n=7) |
| L (mm) | 2.42±0.1 (2.18–2.69) |
2.28, 2.40, 2.24 | 2.61 | 2.61 | 2.07, 2.36, 1.69 | 2.41 | 2.7±0.1 (2.35–2.87) |
2.16, 1.96, 2.59 | 2.71 | 0.87 | 1.39, 1.37 | 1.93±0.2 (1.69–2.11) |
| a | 23.4±0.98 (22.2–24.9) |
22.8, 26.5, 22.8 | 21.6 | 22.1 | 20.6, 19.6, 18.0 | 23.1 | 22.6±1.2 (21.3–23.6) |
21.3, 20.2, 23.4 | 24.3 | 26.6 | 24.2, 25.0 | 27.0±3.0 (22.5–32.0) |
| b | 5.2± 0.4 (4.8–5.9) |
5.2, 5.2, 4.9 | 5.7 | 5.9 | 4.7, 5.7, 4.5 | 5.8 | 5.7± 0.4 (5.3–6.2) |
4.9, 4.4, 6.0 | 5.8 | 3.7 | 4.1, 3.9 | 4.8± 0.4 (4.1–5.2) |
| c | 34.9±4.4 (28–40.4) |
45.7, 34.7, 39.4 | 36.9 | 39.8 | 31.6, 31.6, 30.1 | 36.2 | 37.4±2.1 (35.6–40) |
32.6, 30, 39.2 | 40.9 | 10.1 | 18.3, 15.8 | 24.4±3.8 (20.8–31.9) |
| c‘ | 1.5±0.2 (1.4–1.8) |
1.2,1.2, 1.2 | 1.4 | 1.0 | 1.5, 1.6, 1.5 | 1.5 | 1.5±0.02 (1.4–1.5) |
1.2, 1.2, 1.3 | 1.4 | 3.8 | 2.5, 2.4 | 1.9±0.2 (1.5–2.2) |
| V % | 46.6± 1.5 (44–49) |
- | 49 | - | 46.5, 47, 48 | 49 | 47.6± 2.2 (44–49) |
- | 47 | - | - | - |
| Lip region width | 20.7±0.9 (20–22.5) |
20, 21.5, 21 | 22 | 22 | 21, 22, 21.5 | 20.3 | 21.4±0.5 (21–22) |
22, 21, 21 | 22 | 10 | 15, 16 | 18.7±0.5 (18–20) |
| Odontostyle | 19.8±0.6 (19–21) |
19, 19, 20 | 20 | 20 | 20.5, 21, 19 | 21 | 20.5±0.5 (20–21) |
20, 21, 19 | 20 | 10 | 14, 13 | 17±1.0 (16–18) |
| Replacement odontostyle | - | - | - | - | - | - | - | - | 11 | 17, 16 | 19.9±0.9 (18–21) |
|
| Odontophore | 41.1±1.9 (39–43) |
40 | 45 | - | 44 | 43, 43 | -, 45, 37 | - | - | - | - | |
| Anterior end guiding ring | 16 | - | 15 | 15 | 14, 15, - | - | 15 | 15, 15.5, - | - | - | - | - |
| Anterior end nerve ring | 162.9±9.3 (151–177.5) |
160, 162.5, 152.5 | 177.5 | - | - | 160 | 168.3±10.1 (154–178) |
172, 176, 151 | - | - | - | - |
| Pharynx | 463.9±10.1 (456–487) |
443, 461, 462.5 | 460 | 441 | 444, 414, 375 | 417 | 470.2±21.4 (446–494) |
444, 447, 431 | 470 | 237 | 344, 356 | 405.4±12.6 (382–418) |
| Width at pharynx base | 88.3± 6.8 (78–97) |
88, 81, 84.5, | 103 | 108 | 93, 99, 81 | 94.5 | 91.8± 7.9 (93–110.4) |
92.5, 86, 94 | 97 | - | - | - |
| Width at mid body | 103.7±9.8 (88.5–115) |
100, 91, 98 | 121 | 118 | 101, 120.5, 94 | 104.5 | 118.8±11.9 (108–135) |
102, 97, 111 | 112 | 33 | 57.5, 55 | 71.8±7.2 (65–84) |
| Prerectum length | 136.7±20.2 (95–163) |
171, 179, 172.5 | 164 | - | 105, 99, 97 | 191 | 163.7±23 (134–188) |
- | 137 | - | 93 | 127.2±10.8 (110–138) |
| Rectum length | 73.1±4.8 (68–81) |
- | 67 | - | 65, 75, 62 | - | 74.1±6.4 (71–84) |
- | 75 | 23 | 39, 48.5 | 50.4±6.4 (43–61) |
| Tail | 70.1±7.2 (61–80) |
50, 69, 57 | 71 | 66 | 66, 75, 56 | 67 | 71.4±3.8 (66–74.5) |
66, 65, 66 | 66 | 86 | 76, 87 | 80.1±11.4 (65–96) |
| Genital primordium | - | - | - | - | - | - | - | - | - | 29.5 | 53 | 54.0±14.4 (43–74) |
| Spicules | - | 104, 106, 104 | - | 106 | - | - | - | 106, 113, 112 | - | - | - | - |
| Ventromedian supplements | - | 25, 25, 27 | - | 24 | - | - | - | 24, 28, 26 | - | - | - | - |