The deepwater geryonid crab, Chaceon granulatus (Sakai, 1978) is repor
ted from Taiwan for the first time. This is also the first record of t
he family Geryonidae from Taiwan. Sexual dimorphism between the sexes
is reported. Additional notes on the differences between this species
and the closely allied C. manningi Ng, Lee st Yu, 1994, from the South
China Sea are also provided.