CLAD0D0NTIDJ3. 
29 
P. 5445. Impression of portion of dental crown, referred by Agassiz, 
loc. cit., to Carcharopsis prototypus; Pateley Bridge, York- 
ghPre. Enniskillen Coll. 
P. 2267. Portion of tooth and impression ; Yorkshire. Egerton Coll. 
P. 4886. Two teeth : Yoredale Bocks, Wensleydale, Yorkshire. 
Horne Coll. 
46822. Broken tooth ; Derbyshire. 
Gilbertson Coll. 
. 5446. Type specimen of 
Traquair as the 
Armagh. 
Carcharopsis colei , Davis, regarded by 
abraded crown of a similar tooth; 
Enniskillen Coll. 
V 
f 
The following species have also been founded upon detached teeth ; 
but there are no examples in the Collection :— 
Dicrenodus goughi: Pristicladoclus goughi, P. HcCov, Brit. Pabeoz. 
Poss. 1855, p. 643, pi. 3x. fig. 11.—Carboniferous Lime¬ 
stone ; Kettlewell, near Kendal. 
Dicrenodus jerofeyewi : Pristicladodus jerof'eyeiui, H. Bomanowsky, 
Bull. Soc. Imp. Hat. Moscou, vol. xxxvii. (1864), pt. iii. 
p. 165, pi. iv. fig. 30.—Carboniferous Limestone ; Govern¬ 
ment of Toula, Prussia. 
Dicrenodus okensis,H. Bomanowsky, Bull. Soc. Imp. Hat. Hoscou, 
vol. xxvi. no. 1 (1853), p. 407, pi. viii. ; ibid. vol. xxx. 
no. 1 (1857), p. 290.—^rl^oniferou^^Ljm^tone; JToverjL-^ 
ment of Toula, Bussia. U h . / 6 > } ^ w ^ 
Dicrenodus vortheni : Carcharopsis wortlieniPl. b. Hewberry,'Pal. 
Illinois, vol. ii. (1866), p. 69, pi. iv. fig. 14.—Lower Car¬ 
boniferous ; Huntsville, Alabama. 
Genus HYBOOL 1 ADODUS 5 St. John & Worthen. 
[Pal. Illinois, vol. vi. 1875, p. 284.] 
Teeth scarcely distinguishable from those of Pristicladodus , but 
destitute of crenulations upon the edge of the crown. Ho lateral 
cones. 
Hybocladodus compressus , St. John & Worthen, tom. cit. p. 287, 
pi. v. fig. 8 .— Helodus compressus, Hewberry & Worthen, 
Pal. Illinois, vol. ii. 1866, p. 78, pi. v. fig. 1. Upper 
Burlington Limestone; Iowa. 
Hybocladodus intermedins , St. John & Y orthen, tom. cit. p. 287, 
1 ) 1 . v. fig. 11.—Keokuk Limestone; Iowa, Illinois. 
Hybocladodus nitidus , St. John & Worthen, tom. cit. p. 288, pi. v. 
fig. 7.—Chester Limestone ; Illinois. 
