Larval development of the Xanthid crab, <i>Ozius rugulosus rugulosus</i> Stimpson (Decapoda, Brachyura) under laboratory conditions

26-30Complete life history of the O. rugulosus rugulosus, as observed in the laboratory, comprising 4 zoeal and a megalopa stages, is described. Comparisons are made with the larvae of O. truncatus from New Zealand, the only other species of the genus in which the larvae are so far known. Important generic features suggested, based on the present work, are dorsal spine on 1st abdominal segment in zoeal stages and ventral spine on sichium of chiliped of megalopa