C0CHLI0D0XTID2E. 
203 
(i.) Rounded variety. (? upper jaw). 
P. 2457-8, P. 2450. Three dental plates, described and figured by 
J. W. Davis, Joe. cit. 1883, as P. jonesii : Armagh. 
Enniskillen Coll. 
P. 2458. Thirty similar plates ; Armagh. Enniskillen Coll. 
P. 1412. Ten examples ; Armagh. Egerton Coll. 
P. 2458 a. Impression of a dental plate, of which only the anterior 
part is preserved; Armagh. This is the type specimen of 
P. transversus. Agassiz MS., and bears the following 
labels.—“ This specimen convinces me that Mons. Agassiz’s 
species Poecilodus transversus is a bad one. I consider it 
to he a divided tooth of Poecilodus Jonesii. [Signed] 
Enniskillen, Florence Court, Eeb. 4th, 1858. v — u I was 
certainly mistaken in distinguishing a Poecilodus trans¬ 
versus as distinct from P. Jonesii. [Signed] Agass.” 
Enniskillen Coll. 
28738. Seven dental plates; Armagh. Purchased, 1853. 
26039, 28741. Six fragments of dental plates similar to those from 
Yorkshire described as P. corrugatus, Davis ; Armagh. 
Purchased, 1851, 1853. 
48038. Typical dental plate: Beith, Ayrshire. 
Presented by Robert Craig , Escp, 1874. 
P. 4902. Two fragments; Yoredale liocks, Wensleydale, Yorkshire. 
Horne Coll. 
49815. Similar fragment; Bichmond, Yorkshire. Purchased, 1878. 
48819. Imperfect dental plate ; Derbyshire. Gilbertson Coll. 
P. 5356. Seven fragments of dental plates, one figured (PI. I. fig. 25); 
Tickuall, near Melbourne, S. Derbyshire. Wilson Coll. 
P. 5355 a. Small imperfect example ; Ticknall. Wilson Coll. 
(ii.) Angulated variety (? lower jaw). 
P. 2461. Dental plate described and figured by J. W. Davis, loc. cit. 
1883, as P. obliquus ; Armagh. Enniskillen Coll. 
P. 2462. Thirty dental plates, some much abraded; Armagh. 
Enniskillen Coll. 
