PL A Tea. 
Figs. 1, la, 16. AGARICOCRINUS CRASSUS.—Prof. Wetherby’s collection, 
Figs. 2, 2a. NEW CYSTIDEAN.—Prof. Wetherby’s collection, . : ‘ 
Fig. 3. AMYGDALOCYSTITES HUNTINGTONI.—Mr. Huntington’s collection, 
Figs. 4, 4a, 4b. AGARICOCRINUS ELEGANS.—Prof. Wetherby’s collection, 
