On the First Phyllosoma Stage of Parribacus caledonicus Holthuis, 1960, Scyllarides squammosus (H. Milne-Edwards, 1837) and Arctides regalis Holthuis, 1963 (Crustacea, Decapoda, Scyllaridae) from New Caledonia

The first stage phyllosoma of Parribacus caledonicus, Scyllarides squammosus and Arctides regalis hatched in aquaria from berried females are described and illustrated. The three phyllosomata are very similar but they can be distinguished by three characters: total length, ratio of total length to third pereiopod length and the setation and spination on the second maxilla. A summary is provided of those morphological characters of the first phyllosomata attributed to these genera in the literature.