284 



J. H. ASHWORTH. 



I fiud in all the sixteen other specimeus of Xenia at my 

 disposal, young buds in all stages of growth, similar to 

 those described and figured in Xenia Hicksoni. Most of 

 these young buds occur on the arched end of the stem, but 

 in two of the colonies examined a few buds are found in 

 the middle portion of the summit between the bases of the 

 larger polyps. These buds, however, differ in no way from 

 those round the edge of the summit. 



External Characters of Heteroxenia Elizabethse 

 (PI. 27, fig. 37). 



Bourne (1895) has already described the external characters 

 of a colony similar to this one, but a brief description will be 

 given here. The colony is somewhat triangular in shape, the 

 base of the triangle being formed by the polyp-bearing summit 

 of the stem. The stem is slightly flattened, and is narrow 



