PLATE XIX. 



Pentaceros coronattjs, Forhpii, sp. (Page 82). 



From ilie Lower GJinlh. 



Pig. 



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

 a. Lateral view of arm ; natural size. 



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



From the Upper Ghalh. 



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

 a. Lateral view ; natural size. 



h. Ventro-lateral plate ; magnified 5 diameters, showing entrenclied pedicellaria. 

 c. Supero-marginal plate ; magnified 3 diameters. 



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

 From the Upper Greensand. 



3. Actinal aspect ; natural size. (Coll. Brit. Mus., -i8620.) 



