224 
SELACHII. 
P. 4909. Two teeth, with relatively Harrow coronal elevation, 
resembling the type of Lophodus bifurcatus , J. W. Davis 1 ; 
Yoredale Docks, Wensleydale, Yorkshire. Horne Coll. 
P. 5346. Two small teeth, and six fragments with more rounded 
coronal elevations ; Upper Carboniferous Limestone, 
Ticknall, near Melbourne, S. Derbyshire. Wilson Coll. 
VII. Similar teeth, with the coronal eminence pointed, described 
by M‘Coy as Heloclus appendiculatus 2 . 
P. 2327-8. About fifty specimens ; xlrmagh. Enniskillen Coll. 
P. 2916. T wo small series of five naturally associated teeth; 
Armagh. Enniskillen Coll. 
P, 1433. One tooth; Armagh, Egerton Coll. 
36194, 42218, 42229 a. Forty-five teeth, more or less broken; 
Oreton, Shropshire. Purchased, 1861, and Baugh Coll. 
P. 224. Four teeth ; Oreton. Weaver-Jones Coll. 
P. 2627 a. Eight specimens, one showing three imperfect teeth in 
series, and one with two of unequal size ; Oreton. 
Enniskillen Coll. 
35743. Tooth; Bewdley, Worcestershire. Purchased, 1860. 
34931, 34981 a. Three teeth ; Black Bock, Bristol. Purchased , 1860. 
P. 2637. Tooth; Upper Carboniferous Limestone, Bichmond, York¬ 
shire. Enniskillen Coll. 
VIII. Much elongated narrow teeth, with a more or less pointed 
and transversely ridged coronal eminence, nearer one extremity 
than the other, described by M‘Coy as Heloclus mammillaris 3 . 
Some are not readily distinguishable from abraded teeth of 
Orodus elongatus. 
P. 2644. About forty specimens; Armagh. Enniskillen Coll. 
1 Trans. Boy. Dublin Soc. [2] vol. i. 1883, p. 408, pi. li. fig. 25; and Quart. 
Journ. Geol. Soc. vol. si. (1884), p. 628, pi. xxvii. fig. 5. 
2 Ann. Mag. Vat. Hist. [2] vol. ii. (1848), p. 123. 
3 Brit. Palaeoz. Foss. (1855), p. 631, pi. 3i. fig. 16. Lophodics mammillaris, 
L. Gf. de Koninck, Faune Calc. Carbf. Belg. pt, i. (1878), p. 35, pi. iv. figs. 9- 
11 ; also J. W. Daxis, Trans. Boy. Dublin Soc. [2] vol. i. (1883), p. 406, pi. li. 
fig. 20. 
