PLATE V. 



FIG. \a-rn. Rossdla pulai/rosa. Spicules. (Page 11.) 



FIG. la. Parenchymal hexacfcin. ( X 50.) 



FIG. 11. Parenchymal hexactin. (x 50.) 



FIG. If. Autodermal pentactin. (x 160). 



FIG. Id, Id 1 , Id 2 . Hypodermal oxypentactins. ( X 50.) 



FIG. 1. Autogastral hexactin. (x 160.) 



FIG. If, I/ 1 . Hemioxyhexasters. (x 160.) 



FIG. I/ 2 , I/ 3 . Monoxyhexasters. (x 160.) 



FIG. If*. Small monoxyhexaster. (x 160.) 



FIG. \g. Calycocome. (Optic, sect.) ( x 240.) 



FIG. Iff 1 . The same, (x 700.) 



Fir;.]//. Small calycocome, without disks, (x 240.) 



FIG. Ik. Holodiscohexaster. (x 240.) 



Fin. 11. Monodiscohexaster. (x 240.) 



FIG. 1m. Mierodiscohexaster. (Optic, sect.) ( x 700.) 



FIG. 2-. Anaulosoma srhulzii. Spicules. (Page 22.) 



KH;. 2. Parenchymal hexactin. (x 50.) 



FIG. 26. Parenchymal pentactin. ( x 50.) 



FIG. ~2e. Parenchymal stauractin. ( x 50.) 



FIG. 2d. Parenchymal tauactin. ( X 5u.) 



FIG. -2e. Autodermal pentactin. (x 1G<>.) 



FIG. 2/-2/ 4 . Modified (Autogastral ?) hexactins, and pentactin, all 



from Specimen C. ( x 100.) 

 Fifi. :.'//, -'//', 2# 2 , -2(j 3 . Holo-, Eemi-, and Mon-oxyhexasters. (The 



small " 2 " of 2g' 2 is not visible on the plate.) ( X 1 60.) 

 FIG. -2h. Calycocome. (Optic, sect.) ( x 240.) 

 FIG. 2A 1 . Part of same. ( x 700.) 

 FIG. 2/c. Hemidiscohexaster. (x 240.) 

 FIG. 2k 1 . Part of the same. ( x 700.) 

 FIG. 21. < 'urious discohcxaster, with three orders of rays. ( X 700.) 



:'(. -Microdiacohexaster. (Optic, sect.) (x7<nu 



