Table 3 Comparison of Halomonhystera species (females)
Species | Characters | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
L | a | b | c | c′ | V | Distance from vulva to anus divided by tail length, µm | Distance from vulva to anus divided by anal body diameter | Width of the amphideal fovea, as percentage of c.b.d.,  % | Distance from cephalic apex to anterior rim of amphideal fovea divided by body diameter at level of cephalic setae | Reproduction mode | |
antarctica | 900 | 27 | 7.3 | 14 | 2.5 | 89 | 0.5 | ≥1 | 33 | 1.3–1.4 | ? |
bathislandica | 615–633 | 24–27 | 5.4–5.7 | 7.8–7.9 | 6.5–7 | 64–67 | 1.7–1.9 | 12 calc | 29–31 | 2.13 calc | ?oviparous |
cameroni | 760–792 | 30–38 | 6.5–7 | 9–13 | 4–5 | 86–88 | 0.29–0.33 | 1 | 25 | 2–3 | oviparous |
chitwoodi | 1,020 | 28 | 7.7 | 8.2 | 5 | 76 | 1 | 4–5 | 25 | 1 | viviparous |
continentalis | 520–580 | 20–24 | 5.7–5.9 | 9–11 | 3.6–4.7 | 85–87 | 0.33–0.42 | 1.2–1.6 | 33 | 1.2–1.8 | ? |
disjuncta | 800–1,500 | 16–37 | 5.7–10 | 9–15 | 3–4 | 82–92 | 0.3–0.4 | 1.5 | 25 | <2 | viviparous |
fisheri | 700–775 | 29–36 | 5.8–6.6 | 7.8–9.1 | 5.2 calc | 66–68 | 1.5–1.7 | 12 calc | ? | ? | viviparous |
glaciei | 2,028–2,420 | 61–67 | 7.1–8.1 | 13–15 | 6–7 | 86–87 | 0.8–1.1 | 6.6 | ? | 2.3 | oviparous |
halophila | 1,000–1,270 | 22–32 | 8.3–10 | 8.8–12.3 | 3.8–5.4 | 85–89 | 0.29–0.45 | 1.6–2.3 | ≥25 | 0.8–1.2 | viviparous |
hermesi sp. n. | 635–1,082 | 18–27 | 4.1–5.9 | 8.4–11.3 | 4.6–5.5 | 85–89 | 0.23–0.39 | 1.1–1.8 | 17–28 | 0.7–1 | viviparous |
hickeyi | 721–780 | 28–32 | 6.9–7.4 | 10–11 | 4.5 | 83–86 | 0.4–0.5 | 1.71 calc | 33.8 | 1.78 | viviparous |
islandica | 357–385 | 24–26 | 5.1–6.3 | 6–6.4 | 5.9–8.4 | 57–60 | 1.4–1.7 | ? | 29 | ? | ? |
parasitica | 930–1,120 | 27–28 | 5.3–5.9 | 8–9 | 4.8 calc | 84–86 | 0.26 calc | 1.39 calc | 20–27 | 1.43 calc | oviparous |
rotundicapitata | 810 | 25 | 6 | 8 | 4.5 | 76 | 0.85 calc | 4.2 calc | 20 | 1.5 | oviparous |
socialis | 1,900–2,200 | 40–50 | 8–9 | 10–11 | 3.4–9.3 | 81–94 | 0.17–0.25 | 1.2–1.8 | 19–28 | 0.9–1.6 | viviparous |
tangaroa | 585–909 | 22–29 | 6–7 | 9–11 | 4.3–5.7 | 84–86 | 0.31–0.33 | 1.4–1.9 | 20–27 | 1.1–1.6 | oviparous |
taurica | 736–882 | 29–33 | 6.7–7.5 | 11–13 | 4–5 | 78–90 | 0.16–0.28 | 1.14–1.81 | 17–28 | 1.5 | oviparous |
uniformis | 440 | 38 | 5 | 7 | 6.5 | 83 | 0.33 | 2 | 25 | 2–2.5 | oviparous |
vandoverae | 610–670 | 32–36 | 6.4–7.1 | 8.1–8.4 | 6.3 calc | 67–72 | 1.5–1.7 | 10.8 calc | ? | ? | oviparous (own observations) |