POLYCLADS OF THE ATLANTIC COAST — HYMAN 451 



Figure 24.— a, Coronadena mutabilis (Verrlll), young specimen, from one of Pearse's whole 

 mounts; b, the copulatory complex of C. mutabilis viewed from above, constructed with 

 the aid of frontal sections and whole mounts; c, Discocelides ellipsoides (Girard), from 

 U. S. F. C. slide No. 15621. (See p. 492 for index to numbered parts.) 



