| Species | Body length | Buccal cavity length | Cephalic setae length | Cervical setae length | Number of oesophageal bulbs | Tail length | a | b | c | c’ | Spicule length | Gubernaculum apophysis length | Number of precloacal supplements |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ...Continued on the next page | |||||||||||||
| B. asupplementata Juario, 1974 | 2053–2060 | 10.4– 11.0 | 5.6–6.2 | 5* | 7 | 167 | 42–51.6 | 3.6–3.7 | 12.3–13.5 | 5.6 | 38.9–39.8 | 8.2–9.0 | 0 |
| B. californica (Allgén, 1951) Andrássy, 1973 | 2390 | - | - | - | 7–9 | - | - | - | - | - | 68 | 21 | 2 |
| B. forkyspicula sp. nov | 1443–1512 | 11 | 6–7 | 5–15 | 7 | 109–121 | 25.2–27.1 | 3.6–3.9 | 12.5–13.9 | 3.6–4.7 | 31–38 | 13–14 | 2 |
| B. gallanachmorae (Inglis, 1961) Andrássy, 1973 | 2900 | 14 | 10 | 16–21 | 8 | 234 | 34.9 | 4 | 12.4 | 4.8 | 69 | 14 | 2 |
| B. gracilis Gagarin & Nguyen Vu Thanh, 2016 | 911 | 12 | 6–7 | 6–7* | 7 | 135 | 31 | 9 | 6.7 | 6 | 50 | 14 | 2 |
| B. heptabulba Timm, 1961 | 1130–1160 | 9 | 6.5 | 9 | 7 | - | 25–29 | 3.4–3.7 | 11.8–14.7 | 4.3 | 30–34 | absent | 2 |
| B. huanghaiensis Huang & Zhang, 2005 | 3037–3700 | 16–17 | 11.5–13 | 22–27 | 9 | 230–252 | 34.5–41.9 | 3.9–4.5 | 12.8–14.8 | 3.8–4.2 | 106–137 | 45–60 | 2 |
| B. intarma Belogurov & Belogurova, 1980 | 3700 | - | - | - | 9 | 215 | - | - | - | - | 144 | - | 2 |
| B. longispiculata Nasira, Shahina & Shamim, 2014 | 2638 | 14 | 8 | 5 | 8 | 204 | 32.97 | 4.7 | 12.9 | 4.3 | 216 | 20 | 5 |
| B. stenocephalum Huang & Zhang, 2005 | 2226–2394 | 16–18 | 9–11 | 20–21 | 8 | 176–210 | 33.2–36.3 | 3.7 | 10.6–12.6 | 3.5–4.1 | 80–100 | 34–36 | 2 |
| B. sundaensis (Micoletzky, 1930) Andrássy, 1973 | ♀=2640 | - | - | - | 8 | - | - | - | - | - | - | - | 2 |
| B. teissieri Luc & De Coninck, 1959 | 1899 | 11 | 7 | 16 | 8 | 162 | 36.5 | 3.7 | 11.7 | 5.8 | 39 | 14 | 3 |
| B. tenuidens (Cobb, 1920) Andrássy, 1973 | 2700 | - | - | - | 8 | - | - | - | - | - | - | - | 2 |
| B. vietnamica Gagarin & Nguyen Dinh Tu, 2016 | 1057–1091 | 10–11 | 2.5–3 | 4–5 | 4 | 140–146 | 22–25 | 3.7–3.8 | 7.5–7.6 | 4.9–5.2 | 55–56 | 9–10 | 4 |
| B. warwicki Huang & Zhang, 2005 | 1470–1772 | 9 | 5.5–7 | 13–15 | 7 | 116–140 | 39.4–45.4 | 3.4–3.9 | 12.5–12.7 | 4.8–5.6 | 33–37 | 7–8 | 2 |
| B. wonkimi Rho, Lee, Lee & Min, 2020 | 3263–3396 | 16–17 | 10–11 | 24–25 | 9 | 265–299 | 33–35 | 4–5 | 11–13 | 3.7–4.3 | 115–130 | 17–18 | 2 |
| B. sinica Wang, Guo & Wang, 2022 | 1405 | 9 | 7 | 7 | 7 | 101 | 36.0 | 3.9 | 13.9 | 3.6 | 36 | 9 | 2 |
| B. zhangi Guo & Warwick, 2001 | 2230–2750 | 12–18 | 8–10 | 18–22 | 8 | 170–210 | 29.3–35.4 | 4.1–4.7 | 13.1–13.5 | 2.9–3.7 | 56– 74chord | 40–45 | 2 |