Ward, 1942
Carapace quadrate. Dorsal surface smooth, with regions not well defined, covered with hairs of various length. Antero-lateral margins with two spines or spiniform teeth excluding exorbital angle, sometimes with a rudimentary tooth behind them. Frontal region declivous, with two well defined lobes. Antennules folded transversely. Orbits large. Basal antennal article just touched by ventral prolongation of front; flagellum markedly long and with many hairs. Third maxillipeds not very wide; merus with antero-external angle rounded and antero-internal angle excavated. Chelipeds unequal, rather short but not quite so; palm with some longitudinal rows of granules. Ambulatory legs very long and usually armed with some spines on anterior border of each merus; dactylus of P5 weakly curved upwards but not markedly different from those of preceeding pairs. (Guinot 1998)
Type species: Viaderiana typica Ward, 1942.
Species treated:
Viaderiana quadrispinosa (Zehntner, 1894)
Viaderiana typica Ward, 1942