Rhopalione Pérez, 1920

Ahyong, Shane T. & Boyko, Christopher B., 2019, Rhopalione kali sp. nov., first known epicaridean parasite on the Malaysian pinnotherid crab, Serenotheres besutensis (Serène, 1967), Zootaxa 4590 (2), pp. 283-288 : 286

Key to species of Rhopalione Pérez, 1920 (based on females)

1. Coxal plates extended laterally........................................................................... 2 – Coxal plates not extended laterally........................................................................ 4 2. Coxal plates sharply pointed distally, body longer than wide................................ R. atrinicolae Page, 1985 – Coxal plates rounded distally, body wider than long.......................................................... 3 3. Coxal plates asymmetrically developed, lateral plates and uropods acute distally............... R. incerta ( Bonnier, 1900) – Coxal plates symmetrically developed, lateral plates and uropods rounded distally....................... R. kali sp. nov. 4. Pleomere segments dorsally distinct.................................................. R. uromyzon ( Pérez, 1920) – Pleomere segments dorsally partially fused............................................ R. sinensis Markham, 1990