PLATE XLII. 



Tests with Spines attached. 



Fig. 1. Salenia Clarkii, Forbes, with bent spines attached and in situ. Rev. T. 



Wiltshire, F.G.S. (P. 177). 



2 a. 

 b. 



d. 



5 a. 



b. 

 c. 



Clarkii, Forbes. Test, with bent spines. Rev. T. Wiltshire, 



F.G.S. 



„ Spine bent near the middle, magnified three 



times. 



„ Base, showing lines and milled ring, magnified 



six times. 

 „ Section of a spine, magnified six times. 



petalifera ? Desm. Test, with spines, natural size. British Museum. 



(P. 170). 



Do. do. 

 F.G.S. 



Clarkii, Forbes. 



do. Rev. T. Wiltshire, 

 do. Royal School of 



Do. do. 

 Mines. 



Portion of spine, magnified six times 



Do. do. do. 



