Van* Name. — Compound Ascidians. 
PLATE 38. 
Fig. 8. Macrodinum pomum (Sars). Colony from the Banks of Newfound- 
land. Natural size. 
Fig. 9. Amarouciu77i ■pellucidum form conniellatum (Verrill). Colony from 
the piles of a wharf at Vineyard Haven, Mass. The specimen is 
partly oxevgvovni %\1th a colony of Perophora riridis \'erri]l. 
Preserved in formaldehyde. Natural size. 
