Table 1.
Summary of selected morphological features used to discriminate recent and fossil genera of the subfamily Alosinae
| Taxon | Supraneurals | Dorsal scutes | Branchiostegal rays | Pleural ribs (pair) | Preural vertebrae | Pleural ribs–preural vertebrae ratio | Pelvic-fin rays | Dorsal-fin pterygiophores | Anal-fin pterygiophores | Epurals |
|---|---|---|---|---|---|---|---|---|---|---|
| Alosa | 9–13 | 0–1 | 7–8 | 26–33 | 46–57 | 0.54–0.60 | 9–11 | 12–20 | 15–23 | 1–3 |
| Brevoortia | 10–12 | 0 | 7 | 24–27 | 43–50 | 0.54–0.56 | 7 | 17–24 | 18–24 | 1–2 |
| Chasmoclupea | 13 | 0 | ? | 17 | 40 + ? | ? | 7 | 12 | ? | ? |
| Eoalosa gen. n. | 13 + ? | 0 | ? | 26 | 47 | 0.55 | 7 | 15 | 17 | 3 |
| Ethmalosa | 8 | 2 | 6 | 24 | 43 | 0.56 | 7 | 16–19 | 19–23 | 3 |
| Ethmidium | 11 | 24 | 9 | 31 | 49 | 0.63 | 7 | 19 | 12–15 | 2 |
| Gudusia | 8–9 | 0 | 6 | 21 | 41–42 | 0.50–0.51 | 7 | 15–16 | 22–27 | 2–3 |
| Hilsa | 7 | 0 | 6 | 24 | 41–45 | 0.53–0.59 | 7 | 16–19 | 21–23 | 2 |
| Moldavichthys | 9–10 | 0 | 7–8 | 20–25 | 39–44 | 0.54 | 8 | 16–17 | 17–18 | 2 |
| ‘Pomolobus’ | ? | 0 | ? | ? | 40–43 | ? | 8–9 | 14–17 | 17–22 | ? |
| Pugliaclupea | 6 | ? | ? | 19 | 38–40* | 0.50* | 7 | 15 | ? | 1 |
| Tenualosa | ? | 0 | 6 | ? | 44–45 | ? | 7 | 14–21 | 16–23 | ? |
The table includes new data and data from Grande (1985), Whitehead (1985), Munroe (2000), Taverne (2004, 2007), Murray et al. (2005), Baykina and Schwarzhans (2017), Froese and Pauly (2016). ‘Pomolobus’ solely includes the species ‘P.’ antiquus, ‘P.’ curtus, and ‘P.’ facilis from the Oligocene of Caucasus described by Danil’chenko (1960); these species should not be referred to Alosa because they differ from it in vertebral count
The asterisks (*) indicate the estimated count