PLATE 35 (Ms). 



2. 518. 2. Catenipora agglomerata. ( P^g- 129.) 



2 a. A weathered surface of a mass of tliis species, showing some irregularities in the arrangement of the 

 series of cells. 



2 6. A tiansvcrse section of an upper weathered surface, showing the form of the openings, and the arrange- 

 ment in parallel lines with slight interruptions. 



2 c. A vertical section, showing the transverse septa within the tubes. 



2 d, d. A vertical section magnified, showing the concave septa and the cellular interspaces between the 

 tubes. 



2 e. The external surface of several tubes enlarged, showing an obscurely striated surface. 



2 /. A fragment showing the lower or convex surface of the septa. 



2 /t- Profile of the same enlarged. 



2 g. The openings of several tubes enlarged, contrasting with similar figures from the varieties of the pre- 

 ceding species. 



