PLATE LXIII. 



PAGE 



Crateromorpha 7nurrayi,F. E. S., . . .164 



Fig. 1. A specimen, preserved in alcohol, somewhat damaged at the basal part of 

 the stalk ; natural size. 



Fig. 2. Transverse section of the wall, near the superior sharp margin (combination 

 figure); x 10. 



Fig. 3. Part of a parenchymal diact, with club-shaped echinated ends ; x 300. 



Fig. 4. Bow-shaped, slightly bent, strong parenchymal diact; x 100. 



Fig. 5. Oxyhexaster with long, slightly bent, terminal rays ; x 450. 



Fig. 6. Small oxyhexaster with very short principal and numerous terminal rays, 

 the latter varying in length ; x 450. 



