ZOOPHYTA. 



FLABELLUM, Lesson. 

 F. Remondianum, 11. 8. 



PI. 26, Fig. 199. 



Polypidom triangular, convex on the sides, acute and straight 

 on the lateral margins ; sides marked by eight or nine prominent 

 radiating ribs, with regularly concave interspaces. Upper sur- 

 face unknown. 



Figures, natural size. 



Locality: Between Mount Diablo and the coal-mines, in Division B.; a single 

 specimen collected by Mr. Esmond. 



This specimen was embedded in a soft sandstone, and the surface is somewhat 

 corroded, so that any fine markings which may have existed are obliterated. The 

 upper portion is still covered by the matrix, and, from the nature of the specimen, 

 it is impossible to expose it without destroying the lamella?. 



TROCHOSMILIA, E. and H. 



Subgen. ACROSMILLA, D'Orb. 



T. STRIATA, n. S. 

 PI. 26, Fig. 195. 



Elongate, slender, curved, section circular or subcircular; 

 epithelium rudimentary ; surface marked by numerous promi- 

 nent striae, usually rounded, of variable size, and often showing a 



(207) 



