CLASSIFIED LIST. 9 



Section **. Skeleton spicula acuate. 

 Sub-section A. Spicula smooth, dermal membrane aspiculous. 



16. Hymeniacidon perlaevis. 



17. ,, pachy derma. 



18. Hymeniacidon crustula. 



19. Hillieri. 



Sub-section B. Spicula of derm is dispersed. 



20. Hymeniacidon caruncula. 26. Hymeniacidon virgultosus. 



21. sanguineus. 27. ,, radiosus 



22. mammeatus. (felted). 



23. consimilis. 28. ,, medius. 



24. macilentus. 29. ,, Aldousii. 



25. fallax. 30. ,, virgulatus. 



Sub-section C. Dermal spicula reticulated or fasciculated. 



31. Hymeniacidon varians. 



32. ,, viridans. 



33. aureus. 



34 Hymeniacidon armaturns. 



35. callosus. 



36. plumiger. 



Section ***. Skeleton spicula spinulate. 

 Sub-section A. Dermal membrane aspiculous. 



37. Hymeniacidon subereus. 



38. carnosus. 



39. Hymeiiiacidon gelatinosus. 



40. foliatus. 



Sub-section B. Spicula of dermal membrane dispersed. 



41. Hymeniacidon ficus. 



42. sulphureus. 



43. celatus. 



44. Hymeniacidon claviger. 



45. tenebrosus. 



Sub-section C. Spicula of dermal membrane reticulated or fasciculated. 

 46. Hymeniacidon subclavatus. 47. Hymeniacidon paupertas. 



Section ****. Skeleton spicula cylindrical. 

 48. Hymeniacidon Dujardinii. 



Genus XX. BATTERSBYIA. 

 Battersbyia Bucklandi. 



