COCntlODONTi D J5. 
225 
P. 2614 b. Tooth associated with one of “ Heloilm didymus ; ” 
Armagh. EnniskiUen Coll. 
P. 2644 a, P. 2644 h. Very narrow tooth, with sharply pointed 
eminence ; also two others apparently similar ; Armagh. 
EiinisJciUen Coll. 
P. 1436. Pour teeth naturally arranged in series ; Hook Point, 
Wexford. Eyerton Coll. 
P. 2645. Small tooth ; Bone-hed of Lower Limestone Shales, 
Bristol. Ennishilleii Coll. 
P.4911. Two small teeth; Yoredale Hocks, Wensleydale, York- 
shire. llorne Coll. 
28723. Perfect tooth; Lower Carboniferous Limestone, Tournai, 
Belgium. Purchased, 1853. 
IX. Elongated teeth with a longitudinal median keel rising into an 
eminence and cremJated ; margins with more or less distinct 
concentric wrinkles. [Venustodus, St. John & Worthen.] 
P. 5290. Tooth of the form described by J. W. Davis as Lojdiodiis 
serratus * ; Yoredale Hocks, Yorkshire. Purchased, 1880. 
P. 4910. Three similar teeth ; Wensleydale, Yorkshire. Horne Coll. 
P. 5345. Four similar teeth, imperfect, two figured, of the natural 
size, in PI. I. figs. 10, 17 ; Upper Carboniferous Lime- 
stone, Ticknall, Melbourne, S. Derbyshire. Wilson Coll. 
44855. Larger tooth, with more feeble serrations ; Bristol. 
Presented by Benjamin Bright, Esq., 1873. 
P. 2628 a. Nearly similar tooth, and fragment with more pointed 
coronal eminence ; Armagh. EimisJcillen Coll. 
46043. Unabraded tooth ; Beith, Ayrshire. 
Presented by Robert Craig, Esq., 1874. 
P. 3010, P. 3011. Type specimen of Harpacodus clavatus, Davis 
and a fragmentary tooth, differing only from the fore- 
going in their smaller size, and the relatively less number 
and larger dimensions of the coronal denticulations ; 
■A-rmagh. Enniskillen Cod. 
' Trans. Roy. Dublin Soc. [2] voL i. (1883), p. 408, pi. li. figs. 23, 24 ; Quart. 
Journ. Geol. Soc. vol. xl. (1884), p. G27, pi. xxvii. fig. 19. More robust teeth 
of the same type from Armagh are named Chomatodus denticulatus, F. SI‘Coy 
(Ann. M.ig. Nat. Hist. [2] vol. ii. 1848, p. 124 ; and Brit. Pateoz. Foss. 1855, 
p. 618, pi. 3 K. fig. 9). 
“ Trans. Eoy. Dublin Soc. [2] vol. i. (1883), p. .515, pl.lxi. Gg. 20. 
U 
