CESTKA.C10NTIDJE. 
309 
39473-4. Basal halves of two spines, with very numerous elongated 
tubercles ; Lower Oxford Clay, Christian Halford, TV ilt- 
s hi re# Purchased, 1865. 
P. 461-2. Two specimens figured by Agassiz, tom. cit. pi. viii. 
figs. 7, 8; Kimmeridge Clay, Shotover, near Oxford. 
Egerton Coll. 
43157. Nearly complete spine, the exserted portion 0*225 in length; 
Kimmeridge Clay, Shotover. Wetherell Coll. 
P. 2545. Imperfect larger spine, the exserted portion about 0*35 
in length ; Kimmeridge Clay, Ely, Cambridgeshire. 
Enniskillen Coll. 
P. 2860 a. Portion of smaller spine; Kimmeridge Clay, Ely. 
Enniskillen Coll. 
40318. Distal third of small spine; Kimmeridge Clay, Hartwell, 
Buckinghamshire. Purchased, 1867. 
46330. Two fragments ; Kimmeridge Clay, Devizes, Wiltshire. 
Cunnington Coll. 
47331. Several small fragments; Kimmeridge Clay, Swindon, 
Wiltshire. 
Presented by the Swindon Brick and Tile Co., 1876. 
50091. Line, nearly complete spine, measuring 0*43 in length; 
Kimmeridge Clay, A eymouth, Dorsetshire. 
Purchased , 1879. 
45924. Eragment of spine, showing very long base; Kimmeridge 
Clay, Weymouth. Purchased, 1874. 
48162. Small spine, nearly complete and well-preserved, some of 
the tubercles fused into short ridges; Kimmeridge Clay, 
Sandsfoot, near TV eymouth. Purchased, lb / /. 
P. 156. Huch abraded small spine, the distal extremity broken 
awav and the preserved termination thus deceptive m 
form, figured by Damon, op. cit. ; Kimmeridge Clay, Wey¬ 
mouth. Purchased, 1881. 
P. 2860. Incomplete small, very robust spine ; Kimmeridge Clay, 
Weymouth. Enniskillen Coll. 
P.4682. Distal portion of small spine; Kimmeridge Clay, Wey¬ 
mouth. Presented by C. IT estendarjp, Esg., 18b4. 
