PLATE V. 



Fig. Iffl-m. — Rossella podagrosa. Spicules. (Page 11.) 



Fig. Iffl. — Parencliymal hexactin. (x 50.) 



Fig. IJ. — Parenchymal hexactin. (x 50.) 



Fig. Ic. — -Aiatodermal pentactin. (x 160). 



Fig. Id, Id^, Id^. — Hypodermal oxypentactins. (x 50.) 



Fig. le. — Autogastral hexactin. (x 160.) 



Fig. If, 1/1. — Hemioxyhexasters. (x 160.) 



Fig. ip, 1/^— Monoxyhexasters. ( x 160.) 



Fig. 1/*. — SmaU monoxyhexaster. ( x 160.) 



Fig. Ig. — Calycocome. (Optic, sect.) ( x 240.) 



Fig. 1^1.— The same. ( x 700.) 



Fig. Ih. — Small calycocome, without disks, (x 240.) 



Fig. IJc. — Holodiscohexaster. ( x 240.) 



Fig. 1/. — Monodiscohexaster. (x 240.) 



Fig. Im. — Microdiscohexaster. (Optic, sect.) ( x 700.) 



Fig. 2a-m. — Anaulosoma schulzii. Spicules. (Page 22.) 



Fig. 2a. — Parenchymal hexactin. ( x 50.)' 



Fig. 2S. — Parenchymal pentactin. (x 50.) 



Fig. 2c. — Parenchymal stauractin. ( x 50.) 



Fi&. 2d. — Parenchymal tauactin. (x 50.) 



Fig. 2e. — Autodermal pentactin. (x 160.) 



Fig. 2/-2/*. — Modified (Autogastral ?) hexactins, and pentactin, all 



from Specimen C. (x 160.) 

 Fig. 2g, 2g^, 2g^, 2g^. — Holo-, Hemi-, and Mon-oxyhexasters. (The 



small " 2 " of 2g2 is not visible on the plate.) ( x 160.) 

 Fig. 2A.— Calycocome. (Optic, sect.) (x 240.) 

 Fig. 2^1.— Part of same. ( X 700.) 

 Fig. 27c. — Hemidiscohexaster. ( x 240.) 

 Fig. 2^1.— Part of the same. ( x 700.) 



Fig. 2Z. — Curious discohexaster, with three orders of rays, (x 700.) 

 Fig. 2m. — Microdiscohexaster. (Optic, sect.) ( x 700.) 



