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Eydoux & Souleyet, 1842

The lateral margins of the carapace have a defined epibranchial spine or tooth. The frontal margin is cut into four teeth or lobes more or less projecting; a deep antennal sinus separates the lateral frontal lobe and the internal superior orbital angle. The inferior margin of the cheliped palm is smooth (or sometimes very feebly serrulated in tigrina). The teeth of the front are blunt or lobed; the summits of the submedians reach and generally pass the level of the lateral teeth. The carapace is furnished with either spots or specks or lines of colour all regularly distributed. The carapace, chelipeds and ambulatory legs are furnished with larger and more numerous orange-red spots (about 50 on a carapace measuring 5.5 x 6.7 mm). The merus of the fifth pereiopod is 2.0 times longer than broad. (Serène, 1984)

Type locality: Hawaiian Islands.
Range: Red Sea (Rüppell, 1830, Heller, 1861, Kossmann, 1877, Nobili, 1901, 1906, Klunzinger, 1913, Galil & Lewinsohn, 1984, Serène, 1971a, 1984, Galil, 1988a, Castro, 1999a); Gulf of Aden - (Nobili, 1906, Galil & Lewinsohn, 1984), Djibouti, Obock, Musha Island, Aden and Sikha Island (Castro, 1999a), Berbera, Somalia (Castro, 1999a); Oman - (Hogarth, 1989), Christian Cemetery (Castro, 1999a); Persian Gulf - Hormuz (Castro, 1999a); Somalia - Gesira (Galil & Lewinsohn, 1984); Kenya - Bambuni Beach (Castro, 1999a); Tanzania - (Nobili, 1905), Zanzibar (A. Milne Edwards, 1868, Castro, 1999a); Mozambique - Delagoa Bay (Barnard, 1950), Maputo, Delagoa Bay and Jangamo (Castro, 1999a); ? Aldabra Islands (Lenz, 1905); Seychelles - (Miers, 1884b, Serène, 1984, Castro, 1999a), Amirante (Galil & Lewinsohn, 1984); Madagascar - Diégo-Suarez and Tamatave (Castro, 1999a); Saya de Malha Bank (Castro, 1999a); Réunion (Castro, 1999a); Mauritius (Bouvier, 1915b, Michel, 1964, Serène, 1971a, 1984, Castro, 1999a); India - Laccadive Islands (Sankarankutty, 1961); Maldives - (Borradaile, 1902b, Guinot, 1962b, Serène, 1971a, Garth, 1971a, 1974), Malé Atoll (Galil & Lewinsohn, 1984), Addu Atoll and Malé Atoll (Castro, 1999a); Sri Lanka - (Chen P.S., 1933), Galle (Serène, 1971a); Chagos Arachipelago - Salomon and Egmont (Rathbun, 1911), Diego Garcia (Castro, 1999a); Andaman Islands (Alcock, 1898); Nicobar Islands (Castro, 1999a); Western Australia (Tsareva, 1980); Japan - Amami-shoto and Yaeyama-retto (Sakai, 1976a), Shiono-misaki and Yoron-jima (Muraoka, 1998); Taiwan - Lan-Yü (Chang et al., 1987); Vietnam - Nha Trang (Serène, 1971b); Philippines (Galil & Lewinsohn, 1984); Caroline Islands - Ifalik and Kapingamarangi (Galil & Lewinsohn, 1984); Indonesia - Ambon and Jayapura (Castro, 1999b); Arafura Sea (Castro, 1999b); New Britain - Kokopo near Rabaul (Takeda & Nunomura, 1976); Marshall Islands - Eniwetok (Galil & Lewinsohn, 1984); Samoa; Hawaiian Islands - (Eydoux & Souleyet, 1842, Castro, 1997b), Sandwich Island (Dana, 1852), Kaiwi Channel, Molokai, Laysan, French Frigate Shoal, Kauai, and Penguin Bank (Rathbun, 1906), Honolulu, Waikiki and Kauai (Galil & Lewinsohn, 1984); Marquesas Islands - Nuku Hiva (Jacquinot & Lucas, 1853); Society Islands - (Galil & Lewinsohn, 1984), Tahiti (Dana, 1852), Moorea (Kropp & Birkeland, 1982), Tahiti and Moorea (Castro, 1997b); Tuamotu Archipelago - Makemo (Rathbun, 1907), Takapoto (Kropp & Birkeland, 1982), Anaa Atoll and Tikehae Lagoon (Galil & Lewinsohn, 1984), Makemo, Takaroa, Tikehau, Anaa, Takapoto, Fangataufa, Moruroa (Castro, 1997b); Pitcairn Island (Galil & Lewinsohn, 1984, Castro, 1997b).

Trapezia tigrina