50 
and the edges of the rays have two rows of smaller pecti- 
nated prominences. In the centre of the rays the promi- 
nences are more deeply pectinated, opposite, and continuing 
to the mouth, where they divide a little, and the centre is 
more simple. It has seemingly a fleshy lip. Our specimen is 
smaller than that of Rumphius. The concordance of atti- 
tude is remarkable, as at first sight there does not seem any 
regularity. 
