The Complete Larval Development of the Scyllarid Lobster Ibacus Alticrenatus Bate, 1888 in New Zealand Waters

This paper describes the larval development of Ibacus alticrenatus from individuals hatched in the laboratory and specimens taken from plankton samples. The first two post-phyllosoma stages of this species are also described from specimens reared in the laboratory from late-stage phyllosomae. Division of the development into clearly defined stages was made on the basis of morphological development and changes in total length. Seven phyllosoma stages, the puerulus and post-puerulus stages are defined and described. A series of voucher specimens has been deposited with the National Museum, Wellington, New Zealand, registered under NMNZ Cr 2247-2255.