Abstract
Four zoeal stages of Parapilumnus trispinosus SAKAI and Pilumnus minutus (DE HAAN) were described and illustrated in detail. Zoeae of the two species differ from those of the other members of the subfamily Pilumninae in having four pairs of mid-lateral spines on the abdominal segments II to V. Zoea of P. minutus is very similar to that of P. trispinosus, but easily distinguishable from it by having a pair of lateral spines on carapace. Zoeae of these species were compared with those of the other members of the Pilumninae. Main differences among the ten species which zoeae are known may be seen in the type of antenna II, the presence or absence of carapace spines and of mid-lateral spines on abdominal segments and, the type of telson.