Abstract
Early zoeal stages of Deiratonotus japonicus (Sakai, 1934) were obtained under laboratory conditions. Morphological characters of the first and second zoeae are described and illustrated, and compared with those of other known zoeae of the Camptandriinae and Macrophthalminae. The zoeae of the camptandriinid species can be distinguished from those of the macrophthalminids by setal formulae of maxillular and maxillar endopods. This finding is in good agreement with the classification of adult crabs by Manning & Holthuis (1981). Keys to the zoeae of the camptandriinid species and the ocypodid sub families are given.
