COCCOSTEID^. 
287 
P. 6074. Several associated imperfect plates of the trunk. 
Presented by F. Harford, Esq., 1889. 
(iv.) Cromarty ((7. decipiens). 
41728. Cranial shield, upper aspect, considerably broken. 
Purchased , 1869. 
P. 3220. Similar specimen. Enniskillen Coll. 
P. 696. Plaster cast of mandibular rami, showing anterior denticu- 
lations, the original specimen in the Edinburgh Museum, 
and probably the basis of Miller’s description (Old Ped 
Sandst. p. 57). Egerton Coll . 
18057-58, 19069. Three specimens showing various plates, chiefly 
of the trunk, the third also exhibiting portions of man¬ 
dible and teeth. Purchased , 1845. 
20649, 20651-52. Remains of median dorsal plate showing inner 
longitudinal ridge, bifurcated interiorly; also a similar 
crushed plate, in counterpart. Purchased , 1846. 
30872-73. Median dorsal and posterior ventro-lateral plates, the 
second preserved in counterpart. Purchased , 1856. 
P. 5062. Median dorsal plate. Presented by J. E. Lee, Esq., 1885. 
(v.) Lethen Bar (typical C. oblongus). 
P. 3222-23. Type specimens of Coccosteus oblongus, figured by 
Agassiz, op. cit. pi. xi. Enniskillen Coll. 
P. 685 a, P. 3224 a. Dermal armour of head and trunk, imper¬ 
fectly preserved, in counterpart. Teeth are observed 
in the mandible, relatively more slender than those of 
No. P. 3222. Egerton d,' Enniskillen Colls. 
P. 3224. Three examples of the head and portions of the dermal 
armour of the trunk. Two specimens seem to indicate the 
presence of a deep pit on the inferior aspect of the so-called 
posterior ethmoid plate (described above as pineal). 
Enniskillen Coll. 
P. 685 b, P. 2078. Two examples of the head and armoured portion 
of the trunk, with fragments of the axial skeleton, the 
second also showing the small thin plate in the abdominal 
region already noted in Nos. P. 3216, P. 550, P. 180, 
38728, and P, 695 a. Egerton Coll, 
