Key to species of the genus Eosymtes Bousfield & Hendrycks, 1994

1. The eyes are small, less than 1/3 of the head height; peduncle and rami of uropods 1–3 with few marginal short spine-like setae (fig. 1a, 3a, b)................................................. Eosymtes minutus Bousfield & Hendrycks, 1994

2. The eyes are large, more than 1/3 of the head height; peduncle and rami of uropods 1–3 with numerous marginal short spine-like setae (fig. 1b, 3e, d, c)....................................................... Eosymtes magnumoculis sp. nov.