PLATE XIX. 



Pentaceeos coeoxatus, Forbes, sp. (Page 82). 



From the Lower Chalh. 

 Fig. 



1. Abactinal aspect; natural size. (Coll. Brit. Mus., E. 2562.) 

 a. Lateral view of arm ; natural size. 



Metopastee Parkinsoni, Forbes, sp. (Page 31.) 

 From the Upper Chalk. 



2. Actinal aspect; natural size. (Coll. Brit, Mus., E. 5027.) 



a. Lateral view ; natural size. 



b. Ventro -lateral plate ; magnified 5 diameters, showing entrenched pedicellaria. 

 e. Supero-marginal plate ; magnified 3 diameters. 



Nymphaster Coombii, Forbes, sp. (Page 15.) 

 From the Upper Greensand. 

 3. Actinal aspect ; natural size. (Coll. Brit. Mus., -18620.) 



