554 REVISION OF NORTH AJMERICAN PORIFER^. 



STELOSPOK60S. 



Fig. 20. S. Fikei. Loc, Mauritius, p. 532. 



21. S. Maynardi. Loc, Key West. p. 529. 



22. S. " Loc, unknown, p. 530. 



23-24. S. Icevis var. rotundus. Loc, Phillip's Island, Australia, p. 530. 

 25. S. cribriformis, var. stabilis. Loc, Pacific. Yale Museum, p. 531. 



HIRCINIA. 



li'io'. 26. IT. acuta. Fragment of a macerated skeleton. Loc, Nassau, p. 548. 



27. H. " w&Y.filamenta. Loc, Cape Florida, p. 548. 



28. H. campana, var.Jixa. Loc, Cape Florida, p. 546. 



29. JI. cartilagina, var. horrida. Loc, Cape Florida, p. 549. 



CERATELLA. 

 Fig. 30. C. labyrinthica. Loc, Cape of Good Hope. Ward's Coll. p. 551. 



PHYLLOSPON6IA. 

 Fig. 31. P. papyracea. Loc, Cape of Good Hope. Ward's Coll. p. 543. 



