PLATE XXV. 



PAGE 



Caulojyhacus elegans, F. E. S., . . . 126 



Fig. 1. Superior part of a specimen, preserved in alcohol; natural size. 



Fig. 2. Inferior part of tlie stalk of the specimen shown in fig. 1 ; natural size. 



Fig. 3. Vertical section of the marginal portion of the body of the specimen 

 shown in fig. 1 (combination figure) ; x 20. 



Fig. 4. Autogastral hexact pinulus ; x 100. 



Fig. 5. Autodermal hexact pinulus ; x 100. 



Fig. 6. Part of a discohexaster with echinated terminal rays ; x 450. 



Fig. 7. Discohexaster with five undivided rays ; x 300. 



Fig. 8. Hypodermal pentact with echinated proximal radial ra)'^; x 100. 



