Astrocoenia 
JIOvGjA^ 
ftB.tig aenais -4- 
Astrocoenla ornata (Michelotti) . As I had not described the 
species and given it a new name I followed Duncan’s nomenclature 
in the list of corals from Antigua furnished by me to Dr. J. W. 
Spencer. 
Description: 
Cor alllira, not very large, forming flattened, even palmate 
branches. The type specimen lias a greatest width of 39 mm. and 
a thickness of 9 or 10 mm. 
Corallites polygonal, united by compact not very thick walls/ 
its width .25 to .5 mm* The distal ends of the septa form not 
especially prominent costae. Diameter of the corallites from 1 
to 1*5 mm. Calices shallow. 
Septa, sixteen in number, eight reach the columella and 
eight are short or even rudimentary. Occasionally a few denta- 
tions may be seen on the margins, but they usually have been 
worn away 
