Table 2 Size ranges of the cnidae capsules of Ostiactis pearseae [5]. N total number of capsules measured. S ratio of number of specimens in which each cnidae was found/number of specimens examined. F frequency, +++ = very common, ++ = common, + = rather common, * = sporadic
Body region-Cnidae category | Range length × width (μm) | Avg ± SD | N | S | F | Range length × width (μm)3 |
|---|---|---|---|---|---|---|
Column1 | ||||||
 Basitrichs | 17.2–26.0 × 2.6–4.4 | 21.7 ± 2.3 × 3.4 ± 0.3 | 122 | 6/6 | ++ | 13.1–22.5 × 1.9–3.0 |
 Holotrichs | 16.9–24.7 × 4.8–8.6 | 21.5 ± 2.0 × 6.4 ± 0.8 | 67 | 4/6 | */++ | 16.6–27.0 × 3.5–5.5 |
 p-mastigophores B1 | – | – |  | 0/6 |  | 17.8–33.9 × 2.6–5.3 |
Tentacles | ||||||
 Robust spirocysts | 15.9–41.9 × 4.2–8.8 | 26.0 ± 6.1 × 5.7 ± 1.0 | 85 | 5/5 | ++ | 16.3–35.5 × 2.1–5.8 |
 Basitrichs | 15.2–33.2 × 2.3–4.3 | 23.3 ± 4.0 × 3.5 ± 0.5 | 113 | 5/5 | +++ | 16.2–29.8 × 2.2–4.6 |
 Holotrichs | 15.6–28.5 × 4.0–9.3 | 23.3 ± 2.7 × 7.1 ± 1.0 | 79 | 5/5 | + | 23.1–34.4 × 2.9–6.9 |
Actinopharynx | ||||||
 Basitrichs 1 | 16.4–20.2 × 2.6–3.2 | 18.1 ± 1.7 × 2.9 ± 0.2 | 5 | 2/3 | * | 16.8–26.3 × 2.0–3.3 |
 Basitrichs 2 | 23.7–34.0 × 3.3–4.6 | 27.9 ± 2.8 × 4.0 ± 0.4 | 20 | 2/3 | ++ | 25.6–44.5 × 3.0–4.3 |
 p-mastigophores A2 | 23.3–38.1 × 4.7–6.9 | 30.7 ± 3.5 × 5.7 ± 0.5 | 53 | 3/3 | ++ | – |
 p-mastigophores B12 | 14.5–19.5 × 4.0–5.2 | 17.8 ± 1.7 × 4.5 ± 0.4 | 13 | 3/3 | ++ | 22.0–37.0 × 3.9–6.2 |
Filaments | ||||||
 Basitrichs | 15.3–23.3 × 2.5–3.5 | 18.5 ± 1.6 × 3.0 ± 0.2 | 50 | 4/4 | */+ | 14.1–22.5 × 1.8–2.9 |
 p-mastigophores A2 | 26.5–37.8 × 4.8–6.7 | 32.8 ± 2.2 × 5.7 ± 0.5 | 49 | 4/4 | + |  |
 p-mastigophores B12 | 13.4–21.3 × 3.6–6.3 | 17.4 ± 1.7 × 4.6 ± 0.6 | 59 | 4/4 | +++ | 17.5–37.6 × 3.4–6.0 |