PLATE XXI. 
SPoNDYLUS (continued). 
Figs. 
1—5. SN. striatus (Sow.). Rye Hill Sand, Warminster. (P. 119.) 
1. Museum of Practical Geology, No. 6836. a, left valve; b, anterior view. 
. Woodwardian Museum. Left valve. 
bo 
3. British Museum. a, left valve and projecting umbo of right ; b, posterior view. 
4. Wiltshire Collection, Woodwardian Museum. Right valve with only a small 
surface of attachment. 
5. York Museum. Left valve. 
6, 7. WS. serratus, Woods. (P. 124.) 
6. Dr. Blackmore’s Collection. Uintacrinus-band of Marsupites zone, Devizes Road, 
Salisbury. Left valve. a, outline, natural size; b, x 14; c¢, ornament x 6. 
7. British Museum. Upper Chalk. Left valve. a, outline, natural size; b, x 14; 
c, ornament x 4. 
