Plate 61. 

 1-6. Aerope fulva A. Ag. 



1. Specimen 32 mm. in length, seen from the actinal side; Station 3361. 



2. The same specimen, seen from the abactinal side. 



3. The same, seen in profile, facing the left posterior interambulacrum. 



4. End view of same, facing the odd ambulacrum. 



5. End view of same, facing the anal system and odd interambulacrum. 



6. Actinal plates of the test, surrounding the actinostome, of a specimen about 63 mv. 



length ; Station 3381. 



