PLATK 17. 

 Fig. 1. 101. 2. Cn^TETEs lycopkiiuon. ( Pag. 40.) 



1 n. The iippei' surface of a flat massive form. 

 1 b. Figure i-Imwiiig tlie heiglit of the same speciii\en. 

 1 c. The lower siirfaee of the same specimen. 

 1 d. Seel ion of a small hemispheric mass. 

 1 e. Sever.al columns enlarged. 

 ] /. Openings of culls enlarged. 

 1 g. A ramose specimen on limestone. 



1 A, I, k. Sections of the branches of several ramose specimens through the centre, and on one side of the 

 centre, showing the arrangement of the cells. 



1 /. Several of the cells enlarged. 



Fig. 2. 418. 2. Favistella favosiuea. (Pag. 41.) 



2 o. A fragment of a large mass : cells natural size. 



2 b. Three of the cells enlarged, showing the double walls which coalesce at intervals. 



2 c. A small spheroidal mass of the same species. 



2 d. A section of a spherical mass of this species, showing the radiating cells. 



2 e. A small fragment showing the rays within the cells. 



2 /..Several of these cells enlarged, showing the rays, etc. 



Fig. 3. 419. 1. Caninia bilateralis. (Pag. 4).) 



.S a. Posterior view, showing the shorter posterior side and oblique cu\i, wliicli lias about 48 rays. 



3 b. Anterior side of another specimen, showing the mode of increase by the addition of new rays or lameliic. 

 3 c. An enlarged view of the cup of another specimen. 



3 d. A longitudinal section, showing the internal characters. 



3 c. A young specimen, lateral view. 



3 /. Enlarged view of the cup, showing the irregular union of the lamella; in the centre. 



3 g. A large individual : view a little on one side of the anterior face. Kays .50 or more. 



3 h. An irregular form, apparently of this species. 



Fig 4. 420. 1. Cyclolites ROTULoiDES. (Pag. 42.) 



4 a, h. The upper surface of two individuals of difTercnt size. 4 c. Lateral view of the same. 

 id. Base of another individual. 4 c. Several rays enlarged. 



