ZAl'UnF.NTIS EXCENTMCA 



1. Au oblique uppLT view, sliowiiig t\u: cxcKUtric calice, with its margins broken awiiy. 



1 a. A longitudinal Kectiou of same, mainly as exposed by fractnre, showing the very 

 broad tabulae (() ; and at (v) Ibe large vesicular sjiace on the ventral side. The 

 points marked {s, s, «) show the lateral surfaces of the septa, which are marked 

 with curved strias ; while the poiuts (g, g, g, g) show the surfaces of the septa 

 ground smooth ; (() is the fossula. 



1 6. A dorsal view of the coral as seen with the epitheca worn or weathered off, so as to 

 show the edges of the septa divaricating along the middle of the dorsal side. 



1 c. A side view of same specimen. 



1 d. A transverse section of same, nearly at the middle. 



