Smithsonian Report, 1920— Hy man. 



Plate I. 



1. First Zoea, lateral view; n, dorsal spine; d, labrum or upper lip; e, mandible; f, region of future 



periopods; g, anal protuberance. 



2. Antennule. 



3. Antenna. 



4. Maxillule, ventral view of right maxillule. 

 •"). Maxilla, ventral view of right maxilla. 



»i. Mandible. Left mandible (this is from third Zoea instead of first). 



7. Sixth abdominal segment and telson, ventral view. (Part of fifth abdominal segment is shown.) 



8. First Zoea, frontal view. 



9. First and second maxillipcds. 



