182 W. N. Rice—Animal of Millepora alcicornis. 
figures 17-20 zooids seen from above. Figures 5, 6, 8, 14, 13 
were drawn by Mr. Goode; the remainder by the writer. The 
drawings testify to the entire agreement between the two 
| ites 
6. 
Pe Sbite The at seen by us appear to have been of the 
outhless kind. Moseley has noticed the fact that these 
expand much ae readily than the others. Our observations 
were made partly with a two-inch, but chiefly with a one-inch 
“FR PEF 
Some attempts were made to study the zooids by means of 
decalcified specimens, previously treated with picric acid and 
alcohol ; a preliminary treatment with picric acid and subse- 
quent removal to alcohol having been shown by experiments 
Sea tee 
undertaken by members of the United States Fish Commission, 
gr Sbasaaies of feoak in " Millepora airs 
cornis, ries in the latter the Pg portion is somewhat 
nearer the base of the thread. The length of the thread in the 
longest of our specimens is about 027 inch. 
* Philosophical Transactions, elxvii, pl. II, fig. 1. 
