130 



U.S. NATIONAL MUSEUM BULLETIN 236 



Figure 45. — Peltidium purpureum Philippi, loc. 638, juv. specimen: a, whole animal, dorsal 

 view; b, same animal, lateral view after removal of antennules. (X 210.) 



Body of general shape characteristic for genus. Head and 1st 

 thoracic somite completely fused; 2nd to 5th thoracic somites with 

 distinct, laterally produced epimeral plates. Cephalic somite anter- 

 iorly rounded; rostral base distinctly visible between basal parts of 

 antennules and represents squarely cut off projection of ccphalothorax. 



