Henderson, 1888
Monotypic genus, genus definition repeated:
Carapace elliptical, much longer than broad, surface granulated; fronto-orbital border less than half the greatest width of carapace; five fronto-orbital spines; antero-lateral borders with one (extraorbital) spine; rostral tooth as wide at base as long. Eye peduncle one segmented, folding transversely. Dorsal border of cheliped palm without spines or carinae. Posterior margin of propodus of fourth pereiopod without spines. Fifth pereiopod, compared to the preceeding ones, reduced in size. (Türkay 1995)
Type locality: Kepulauan Kai, Indonesia, 256 m.
Range: east coast of Africa - off Kenya and Tanganyika; Japan - South Honshu Ridge (Sakai, 1980a); East China Sea - Okinawa Trough (Baba, 1986); Philippines - north Lubang Island (Serène & Vadon, 1981), west and north of Lubang Island (Goeke, 1986); Indonesia - Kepulauan Kai (Henderson, 1888); Australia - mid-eastern Queensland (Davie & Short, 1989); Tuamotu Archipelago - Fangataufa (Poupin, 1996a); 156-475 m.