PLATE XXIV. 



Lepidesthes ? devonioans, Whidborne. (Page 200.) 



Fig. 



1. One side of the mould of a nearly perfect but flattened and compressed 



specimen, in which the remains of the lantern are seen, and the ten areas 

 may be roughly traced, nat. size. Pilton Beds, North Devon. Museum of 

 Practical Geology. 



2. Portion of the opposite face of the same specimen, showing numerous spines 



and interambulacral and ambulacral plates, X 2. Pilton Beds, North 

 Devon. Museum of Practical Geology. 



