PTEKASPID2E. 
163 
P. 3242, P. 4218. Two blocks of sandstone with fragmentary shields, 
and an imperfect specimen, inner aspect; Cradley. 
■A 
EnnisJcillen Coll. 
P. 680-1. Anterior half of shield, and block with portions of 
three specimens, two showing the dorsal spine in position ; 
Cradley. Egerton Coll. 
43969. Well-preserved portions of disc and dorsal spine, figured by 
Lankester, op. cit. pi. vi. fig. 6; Cradley. 
Purchased , 1872. 
38177, 36186, 36189. Three imperfect shields, about 0-09 in length » 
Cradley. Purchased , 1861. 
35978. Portion of disc and dorsal spine, inner aspect, as convex as 
no. P. 5037 ; near Ludlow. Purchased , 1861. 
45983 a. Portion of disc and dorsal spine; Whitbatch. 
Lightbocly Bequest. 
45963. Much fractured shield ; Targrove, near Ludlow. 
Lightbocly Bequest. 
41845. Impression of inner aspect of shield, and portion of dorsal 
spine; Herefordshire. Purchased , 1869. 
P. 4112. Relatively broad, small disc, probably of this species ; 
Pandy, near Abergavenny. 
Presented by Dr. D. M. McCullough , 1883. 
45961. Well-preserved fragment of disc, probably of this species; 
Herefordshire. Lightbocly Bequest. 
38035. Disc of a young individual, probably of this species; 
Heightington. Purchased , 1864. 
42150. Similar specimen ; (?) Heightington. Baugh Coll.. 
42148, 42163. Three orbital plates, either of this species or P. 
crouchi; (?) Heightington. Baugh Coll . 
44116. Small specimen showing fragments of the anterior shields, 
and some of the scales of the caudal region naturally 
arranged; Cradley. This fossil is described and figured by 
E. It. Lankester in the Quart. Journ. Geol. Soc. vol. xx. 
(1864), p. 194, pi. xii. figs. 1-4, 6, 7, and subsequently 
noticed in the “Pishes Old Red Sandst.” pt. i. (Pal. Soc. 
1868), p. 31, pi. v. figs. 3, 5, 8, as possibly referable to 
P. crouchi. It is determined to be the dorsal portion of 
