Growth, density, survival, and reproduction were examined for the population of the ghost shrimp, Callianassa japonica Ortmann, inhabiting an intertidal sandflat in western Kyushu, Japan, based on samples collected from May, 1989 to April, 1991. During

Two common Japanese callianassid species, Callianassa japonica Ortmann, 1891 (= C. californiensis var. japonica Bouvier, 1901 and C. harmandi Bouvier, 1901) and C. petalura Stimpson, 1860, specifically under the generic name Callianassa, could be reconfirmed

Callianassa petalura Stimpson, 1868 =C. gigas var. japonica Makarov, 1935 =C. gigas var. eoa Makarov, 1938 Callianassa japonica Ortmann, 1860 =C. harmandi Bouvier, 1901 =C. californnensis var. japonica Bouvier, 1901 =C. californnensis var. bouvieri Makarov,