PLATE V, 



PAGE. 



Figs. 1 to Ic. Views of Hybocystites problematicus — 1 Jind la, two diame- 

 ters ; 16 and Ic, natural size. Prof. Wetherby's collection, . . 150 



Figs. 2 to 2c. Views of Hybocrintjs tumidus— All natural size. Prof. Weth- 

 erby's collection, . . 152 



Fig. 3. Heterocrinus ? MiLLERi — Symmetrical side. Three diameters. Prof. 



Wetherby's collection, 153 



Fig. 4. SCYTALOCRINUS WACHSMtJTHi — Symmetrical side. Natural size. Prof. 



Wetherby's collection, ......... 155 



Fig. 5. ScAPHiOCRiNUs SPINIFER — Symmetrical side. Natural size. Prof. 



Wetherby's collection, 157 



Fig. 6 to 66. POTERIOCRINUS ANOMALOS—-Difierent views, all three diameters. 



Prof. Wetherby's collection, . . ' 158 



