TUBIPORA MUSICA. 491 



The animal of this coral appears to be one degree higher in the scale 

 than those [Hydra, e. g.] which have only one bag with a mouth ; for 

 it has a stomach within, distinct from the animal itself. It is a regur- 

 gitator. 



I conceive its body is naturally rather long, although almost round 

 in the figure 1 , because the stomach was thrown into transverse folds, 

 not longitudinal; it was therefore not contracted laterally, but pro- 

 bably rather stretched in this direction, on account of the longitudinal 

 contraction : indeed the rugae of the animal itself were transverse or 

 rather circular from the same cause, like a worm when it contracts 

 itself. 



1 [" Qu. What figure ?— W. C."] 



