Caecianiropsis goseongensis sp. n. holotype, male. A Antennula, dorsal, ×400 B antennula articles 5‒7, dorsal, ×600 C antennal article 1‒4, dorsal, ×400 D antennal article 5, 6 and flagellum, dorsal, ×400 E maxilliped, ventral, ×400 F paratype 3, male, distal margin of endite, ventral, ×1000. Scale bars: 100 µm (A–E), 50 µm (F).