Table 1 Comparative meristic information of the five species of Danionella. Information for D. mirifica, D. dracula and D. priapus taken from Britz4,5 and Britz et al.6,8. Counts of D. cerebrum (n = 32) based on MTD 39986, MTD 39987 and MTD 39989, those of D. translucida (n = 28) on MTD 39992, MTD 39993.
D. cerebrum | D. translucida | D. mirifica | D. dracula | D. priapus | |
|---|---|---|---|---|---|
Dorsal-fin rays | 8–9 | 8–9 | 8–10 | 7–8 | 9–10 |
Anal-fin rays | 15–18 | 12–15 | 17–20 | 12–14 | 20–21 |
Principal caudal-fin rays | 9 + 9 | 8–9 + 8–9 | 9 + 9 | 7–8 + 7–8 | 9 + 9 |
Dorsal procurrent caudal-fin rays | 5–8 | 5–7 | 5–6 | 3–4 | 7–8 |
Ventral procurrent caudal-fin rays | 5–8 | 3–7 | 6–7 | 2–3 | 6–8 |
Pectoral-fin rays | 6 | 6–7 | 6–7 | 7 | 8 |
Pelvic-fin rays | 5 | 5 | 5 | 6 | 5 |
Vertebrae | 33–35 | 32–34 | 36–37 | 36–37 | 37–38 |
Abdominal | 13–14 | 12–14 | 14–15 | 15–16 | 15–16 |
Caudal | 19–21 | 19–21 | 21–22 | 20–22 | 22–23 |
Ribs | 7–8 | 7–8 | 7–9 | 8 | 10 |
Anal-fin pterygiophores | 14–17 | 11–14 | 16–19 | 11–13 | 19–20 |
Insertion of anal-fin pterygiophores | 22–24 | 19–21 | 23–25 | 23–24 | 27–28 |
