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(Temminck, 1836)

(Monotypic, thus generic description repeated)
Carapace subcircular; surface with a number of spiniform tubercles, which are especially erect on the branchial regions, these last ones markedly swollen and well delimited; supraorbital eave with a spine in front and behind the eyestalk, exorbital angle spiniform, hepatic lobe behind it acute; rostrum composed of two slender spines; interantennular partition well developed and bearing a spine at its apex ventrally. Basal antennal article not extending forward further than half diametre of eyestalk. Chelipeds longer than any of the ambulatory legs; merus and palm especially long and of similar length; fingers very short, less than a fourth of palm length. Ambulatory legs long and slender; meri longest; dactyls simple, slightly incurved and not prehensile. (Türkay 1995)

Type locality: Japan.
Range: Japan - (de Haan, 1839), Enoshima, Sagami Bay (Miers, 1886), Sagami Bay (Ortmann, 1893), Owase and Ibaragi Prefecture (Yokoya, 1933), Shimoda (Sakai, 1935), Hayama, Koyawata, Ajiro, Shimoda, Nanki Shirahama, Tosa Bay and Nagasaki (Sakai, 1938a), Sagami Bay (Sakai, 1965b), Kamaishi, Kominato, Sagami Bay, Suruga Bay, Kii Minabe, and Tosa Bay (Sakai, 1976a), Kii Minabe (Miyake, 1983), Suruga Bay (Takeda, 1997); Taiwan - off Su-ao (Huang et al., 1990); 50-600 m.

Macrocheira kaempferi