PLATE LXVI. 



GoNioPYGUs DELPHiNENSis, Jlbiii Gras. 



Front the Farrinc/don Spo7ige Bed, Lower Greensand. 



Fig. 1 a. Upper surface, natural size. My cabinet. 



b. Under do. do. 



c. Lateral do. do. 



d. Interambulacrum, magnified four times. 



e. Ambulacrum, do. do. 



/. Apical disc, do. three times, 



y. Ambulacral plates, do. six times. 



Caediaster Benstedi, Forbes. 

 From the Lower Greensand. 



Fig. 3 a. Upper surface, natitral size. British Museum. (P. 293.) 



b. Lateral view, do. 



c. Posterior view, do. 



