G. ACETABULARIA. 
109 
The Neomeris do not branch ; their form resembles 
a spindle, and they are about two or three deci- 
metres long. 
Their colour is whitish. 
They are found in thick tufts mixed with the stems of 
the Acetabularia Crenulata, and other Polypidoms. 
BUSHY. 
1. Neomeris dumetosa. This is the only species 
belonging to the genus ; it is found in the Antilles. 
—Plate 7. fig. 8. a. B. 
ACETABULARIA. 
Umbel-shaped Polypidom; stem branchless, 
slender, fistular, and terminated by a striated and 
radiated umbel, either fiat or inclining to a funnel- 
shape. 
The Acetabularias partake of the characters of the 
Tubularias, as well as Sertularias, by the situation 
of their Polypi, each placed in a distinct tube, and 
participating a common existence by means of the 
stem to which the lower part of each animalcule is 
attached ; these tubes, which are very visible and 
projecting in the lower part of the umbel, blend and 
disappear when they reach the stem ; they form dis- 
tinct lines, on the upper part of the disk. 
