Plate 4. First-Stage Lobster. 



Figure 5. Right first maxilliped from above, M^125. Here the endopodite 

 (en) and exopodite (ex) are unjointed. The end of the former is tipped with sev- 

 eral long setse, while the latter is bordered on the outer side by feathered setaj. 

 The basipodite (b) and the coxopodite (c) are not strongly divided, and form a 

 large plate (b. c.)- The podobranch is absent, but the epipodite (e), which is 

 thiTi and plate-like, is strongly developed. 



