158 



CCELENTERATA. 



John Young, indeed, the fossils known as Palccocoryne are 

 really peculiar processes belonging to the Polyzoon (Fenestella) 

 upon which they grow. 



Fig 48. Palceocoryne radiatum, enlarged fifteen diameters. (After Duncan and Jenkins.) 



The genus Corynoides was proposed by the author for some 

 singular fossils from the Lower Silurian rocks of Scotland. 

 Each consists of a cylindrical corneous 

 tube (fig. 49), tapering towards the 

 base, where it is furnished with two 

 small spines, and expanding above into 

 a species of toothed cup. Corynoides 

 consists of a single polypite, and in 

 this respect may be compared with 

 some living Corynida. It would seem, 

 however, not to have been attached to 

 any foreign body as all living Corynids 

 are and its true affinities are thus 

 rendered uncertain. 

 II. THECAPHOIJA. (or Sertularida and Campanularida). 

 Animal compound, rooted and plant-like, consisting of mimer- 



Fig. 49. Corynoides call 

 cuhiris, enlarged. (Origi 

 nal) 



