224 
8ELACHII. 
P. 4909. Two teeth, with relatively narrow coronal elevation, 
resembling the type of Lopliodus hifurcatm, J. W. Davis ' ; 
Torcdalo Hocks, Wensleydale, Yorkshire. Horne Coll. 
P. 5346. Two small teeth, and six fragments with more rounded 
coronal elevations ; Upper Carboniferous Limestone, 
Tioknall, near Melbourne, S. Derbyshire. Wilson Coll. 
VII. Similar teeth, with the coronal eminence pointed, described 
by M‘Coy as Ilelodiis appendicvlatus 
P.2827-8. About fifty specimens ; Armagh. Ennisldllen Coll. 
P. 2916. Two small series of five naturally associated teeth ; 
Armagh. Ennisldllen Coll. 
P.1433. One tooth; Armagh. E(/erton Coll. 
36194, 42218, 42229a. Forty-five teeth, more or loss broken; 
Oreton, Shropshire. Purchased, 18G1, and Bauijh 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, ^860. 
34981, 34981 a. Three teeth ; Black liock, Bristol. Purchased, 1860. 
P. 2637. Tooth ; Upper Carboniferous Limestone, llichmond, 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 Ilelodus mammillaris 
Some are not readily distinguishable from abraded teeth of 
Orodus elonr/atus. 
P. 2644. About forty specimens; Armagh. Enniskillen Coll. 
' Trans. Boy. Dublin Soc. [2] toI. i. 1883, p. 408, pi. li. fig. 25 ; and Quart. 
Joum. Geol. Soe. vol. xl. (1884), p. 028, pi. xxvii. fig. 6. 
” Ann. Mag. Hat. Hist. [2] vol. ii. (1848), p. 123. 
^ Brit. Palffioz. Foss. (18.55), p. 631, pi. 3i. fig. 16. Lophodm mammillaris, 
L. G. de Koniuok, Faune Calc. Carbf. Belg. pt. i. (1878), p. 35, pi. iv. figs, fi- 
ll ; also J. W. Davis, Trans. Boy. Dublin Soc. [2] vol. i. (1883), p. 406, pi. li- 
fig. 20. 
