386 
CROSSOPTERYGII. 
38556, 42037, 46023. Three fragments of mandible ; Airdrie. 
Purchased , 1864, 1870, 1874. 
P. 5179. Portion of mandibular ramus wanting the external layer 
of ganoine, displaying a portion of the series of small 
teeth, and three large inner teeth, of which the second 
(i. e. that upon the most anterior internal dentary bone) 
shows the indentations characteristic of “ Phombopty chius”; 
Deep Mine, Longton, North Staffordshire. This specimen 
is noticed by J. Ward, Trans. N. Staffs. Inst. Mining 
Engin. vol. x. p. 167. Purchased, 1885. 
P. 3311. Six large teeth ; Deep Mine, Longton. Enniskillen Coll. 
P. 249. Large, transversely-banded tooth; Knowles Ironstone, 
Denton, North Staffordshire. Weaver-Jones Coll. 
P. 793. Large transversely banded and indented tooth; Deep Mine, 
Longton. Egerton Coll. 
P. 3279. Three ring-vertebrae ; Longton. Enniskillen Coll. 
40175, 42001. Scales and bone-fragments, the second group doubt¬ 
fully of this species ; Airdrie. Purchased , 1866, 1870. 
46024-25. Group of small “decorticated” scales, and two asso¬ 
ciated scales of the lateral line; Airdrie. 
Purchased , 1874. 
P. 361. “Decorticated” scales; Airdrie. Purchased , 1881. 
P. 4801. Similar large scales; Airdrie Dlackband, Carnbroe. 
Armstrong Coll.—Transferred from Edinburgh Museum, 1884. 
P. 3314. Group of similar scales, a few showing the ganoine layer ; 
Dalkeith. Enniskillen Coll. 
P. 802-4. Three groups of similar scales, some showing the ganoine 
layer ; locality unknown. Egerton Coll. 
Megalichthys laticeps, Traquair. 
1836. Megalichthys, S. Hibbert (in part), Trans. Roy. Soc. Edinb. 
vol. xiii. pi. xi. tigs. 2-8. 
(?) 1844. Eiplopterus robertsoni, L. Agassiz, Poiss. Foss. vol. ii. pt. ii. 
p. 162 (name only). 
1884. Megalichthys laticeys, R. H. Traquair, Proc. Roy. Pkys. Soc. 
