PLATE XCVJl. 



PAGE 



Fieldinyiu layettoides, iSaville Keut, . . . ^35 



Fig. 1. A dried specimen, some what damaged, having lost the greatest part of 

 tlie lameUar rind, from a photograph ; natural size. 



Fig. 2. A spherical knot of the skeleton, \\ith some beams of the dictyoual 

 framework ; x 100. 



Fig. 3. Star-like oxyhexaster with very reduced principal rnys ; x 450. 



Fig. 4. Discohexaster with short principal and long terminal rays; x 450. 



Fig. 5. Dermal scopula ; x 300. 



Fig. (). Uxyhexaster with short principal and long terminal rays ; x 450 



Fig. 7. Simple oxyhexact with slender smooth rays : x 450. 



Fig. 8. Smooth oxydiact with four central cruciately disposed knobs and pointed 

 ends ; x 300. 



Fig. 9. Part of an uucinatum ; x 300. 



