'SKLAOUll. 
'2l0 
Ib(57. Utrebli/dns oblunytis, K. Owen, Oeol. Mag. vol. iv. p. 02, pi. in- 
■lig. 3. 
1883. Slrebhdus obhmjun, .1. W. Davis, Trans, lioy. Dublin Soo. [2] 
vol. i. p, 424, pi. liii. lig,s. 1-4. 
Tyi>e. Detached dental plate. 
Dental jdate much elongated antoro-posteriorly ; Linder tumid 
portion sharply separated by an abrupt elevation from the anterior 
portion, with which it is equal in extent ; anterior portion crossed 
by one broad low ridge, and occasional faintly-marked grooves 
nearly parallel to (.he antero-latoral margin. 
Tliis is supposed to be the upper dental plate of Cochliodm con- 
turlxm by St. John and Worthen'. 
Form. ^ Loc. Lower Carboniferous Limestone : Armagh, Ireland. 
P. 2417. P ortions of two associated dental plates described and 
figured by Owen, luc. cit., and by J. W. Davis, tom. cit. 
p. 425, pi. liii. fig. 4. Ennislillen Coll. 
P. 2414. Incomplete dentition, described and figured, and referred 
to the lower jaw by J. W. Davis, tom. cit. p. 424, pi. liii. 
fig. 1. The two rami are evidently crushed together, and 
in advance of the largo posterior dental plate on each side 
are indications of the bases of two small series of teeth. 
Of the first series on the “ left ” side, one of those small 
teeth is preserved in position, exhibiting the characters of 
the so-called genus Lojihodas or Ilelodus. 
Ennislcillen Coll. 
P. 2415-6. Two posterior dental plates, one exhibiting the inrol- 
ment of the outer border ; figured by J. W. Davis, tom. 
cit. pi. liii. figs. 2, 3. Ennislcillen Coll. 
P. 2418. Thirty similar specimens. Enniskillen Coll. 
P. 1400. Twelve specimens, mostly small. Ejerlon Coll. 
28727, 28917, 38502, P. 260. Soventeeu speciuiens. Purchased. 
Streblodus colei, Davis. 
1802. Streblodus colei, Morris & Roberts (e.v Agassiz, MS.), (iuart. 
Jouru. Geol. Soc. vol. xviii. p. 101 (name only). 
1883. Streblodus colei, .1. W. Davis, Trans. Roy. Dublin Soc. [2] vol. i. 
p. 42(1, pi. liii. figs. 5, 0. 
Tijpe. Detached posterior dental plates ; Rritish Museum. 
’ Pal. Illinois, vol. vii. (1883), p. 02. 
