PLATE LIV. 



PAGE 



Polylophus philippinensis, Gray, . . .133 



Fig. 1. A specimen preserved in alcohol, with numerous buds of various sizes and 

 ages ; natural size. 



Fig. 2. Vertical section of the outer marginal portion (combination figure); x 50. 



Fig. 3. Discohexaster belonging to Lanuginella pupa, erroneously put in this 

 plate ; x 450. 



Fig. 4. Plumicome from the subdermal trabecular work ; x 300. 



Fig. 5. Oxyhexaster with long principal rays ; x 300. 



Fig. 6. Longitudinal section of a principal ray, with terminal rays of a plumi- 

 come ; X 1000. 



Fig. 7. Autodermal tetract with somewhat bent, rough, rounded rays ; x 100. 



Fig. 8. Hexact with straight rough rays, probably intruded and not lielonging to 

 Polylophus philippinensis ; x 100. 



Fig. 9. Inferior part of an anchor-like pentact of the basal tuft ; x 50. 



