Key to genera of Eosymtinae (from Labay 2018)

1. Coxae 1–3, posterodistal cusps multiple (2–5 in number); peduncular segment 1 of antenna 1 with strong anterodistal processes; dactylus of pereopods 3–7 at most 0.25 propodus (Figs. 1, 2)............................ Cognateosymtes Labay, 2018

- Coxae 1–3, posterodistal cusp single; peduncular segment 1 of antenna 1 without strong anterodistal processes; dactylus of pereopods 3–7 at leastst 0.45 propodus (Figs. 1, 2)........................... Eosymtes Bousfield & Hendrycks, 1994