EXPLANATION OF PLATES 8 & i). 



Fig. 1. CoNULAR[A. MAGNiFiCA (Spencer), p. 5S. Xatural size. 



la & 15. Surfaces enlarged. 

 Fig. 2. CONULARIA RUGOSA (Spencer), p. .51). 



2a. Inner surface, enlarged. 



Fig. 3. CONULARIA WILKINSI, p. 59. 



Fig. 4. Crania anna, p. 57. 

 Fig. 5. DisciNA CLARA, p. 56. Dorsal valve. 

 5a. Ventral valve. 



Fig. 0. LiNGULA INiJENS, p. 5G. 



