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(Dana, 1852)

The antero-lateral margins of the carapace have 4 to 5 teeth behind the exorbital angle. The carapace and chelipeds have their surfaces granular or smooth, sometimes finely punctate. There are 4 teeth behind the exorbital angle. The carapace is less convex dorsally and the regions less projecting, they are smooth or finely granular, separate by broad, shallow furrows. The exorbital angle is more feebly developed and not conspicuously acute; the antero-lateral teeth are less projecting, particularly the two anterior ones. The antero-lateral teeth are separated from each other by feeble but distinct indentations; the first and the fourth tooth are noticeably feeble. The dorsal surface of the carapace is slightly convex with the regions hardly projecting but distinct. The first pleopod of the male has 5-6 stout, curved, short, subdistal spines and a relatively short apical lobe bordered by 5-6 mushroom-shaped tubercles. (Serène, 1984)

Type locality: Wake Island.
Range: Red Sea (Nobili, 1906); Kenya - Mombasa (Serène, 1984); Zanzibar (Lenz, 1905); Ile Europa (Serène, 1984); Seychelles; Mauritius (Bouvier, 1915b, Michel, 1964); Cocos Islands; Christmas Island (Balss, 1938); Japan - Amami-Oshima and Kikaishima (Stimpson, 1907), Kii Peninsula (Sakai, 1939), Hachijo-jima (Sakai, 1954), Gobo, Yoron and Ishigaki-jima (Sakai, 1976a); Taiwan; China - near Hong Kong (Stimpson, 1907), Guangdong and Paracel Islands (Dai & Yang, 1991); Indonesia - Noordwachter Island (de Man, 1887d); Palau (Takeda & Hayashi, 1973, Takeda, 1976a); Vanuatu - Santo (Takeda & Nunomura, 1976); Caroline Islands; Wake Island (Dana, 1852); Marshall Islands; Kiribati; Hawaiian Islands - Oahu (Rathbun, 1906); Line Islands - Palmyra and Tabuaeran (Edmondson, 1923); Tahiti; Tuamotu Archipelago.

Leptodius gracilis