IDENTIFICATION OF EDWARDS AND HAIME's FIGURE. 265 



and shape of the calyx similar to the Swedish coral. The corallum is 

 represented as made up of approximately parallel and wavy horizontal 

 lamina', averaging about two to the mm. These were supposed to repre- 

 sent the complete tabulae. We know of nO coral outside of the genus 

 Chonophyllum proper which could present a longitudinal section similar 

 to that shown in the lower two-thirds of this figure. We have prepared 

 a corresponding section of C. ponderosum which is strikingly similar in 

 general appearance. In this portion of the figure these layers are not 

 continuous through the center as they appear in the upper third, but 

 here are drawn the vertical edges of the central septa, under a lens show- 

 ing the angularly wavy appearance described for C. magnificum. Support- 

 ing growths are represented throughout the section. We regard this 

 specimen as belonging to the genus, probably to the same species as the 

 Swedish coral, and cut so as to show the edges of the septal layers. The 

 upper portion of the figure, however, it must be confessed, with these 

 layers continuous across the central cavity, could not have been copied 

 from a Chonophyllum. it may be to some extent ideal, as are the two 

 figures of Billings previously referred to. 



A later reference is made to the Wenlock specimen mentioned above : * 



"It is nut without some hesitation that we referto this species, already described 

 in the preceding chapter as being common in the Devonian formation, a coral found 

 by M. d'Archiac in .the Silurian rocks at Wenlock. The only apparent difference 

 between this fossil and the Torquay specimen consists in the form of the calice, the 

 border of which is not everted." 



This specimen as figured t has a length and diameter of about 4 cm., 

 is obtusely pointed and slightly curved. The calyx is basin-shaped 

 without explanate margins, and shows no fovea. There is a well devel- 

 oped epitheca, giving here and there the appearance of coarse radiciform 

 processes. The septa number about lot), and are apparently angular. 

 The general form of the coral and its calyx, the well developed epitheca 

 and radiciform processes, combined with the apparently angular or" roof- 

 shaped " septa, convinces us that this is an Omphyma, found abundantly 

 in the same locality, in which the fovea' are obsolete, as frequently happens. 



A specimen figured by Pictet as belonging to this species is slenderly 

 cylindrical, the surface giving the appearance of invaginated, projecting 

 cell-cups.;}; Its structure may conform to the description of Edwards and 

 Ilaiine. hut it has no affinity with Chonophyllum. 



A coral which is supposed to belong to this species was collected from 

 tie' Devonian of the Eifel by Dr. I {on linger, and is now deposited in the 



* Loc. Hi., pi. v. p. 291. 



i l."<\ ' ii tab. lxviii, figs. - and 2a. 



\il i- i., ■ Ti Hi'' a.' PalGontologie, ' pi 108, tin. 2. 



