486 SELACHII. 
ikf (u~c\ ^ acjL ******* ? Vi 
iii. Aprionodon , Gill (Ann. Lyc. Nat. Hist. New York, vol. vii. 
1862, pp. 401, 411). Apr ion, Muller & Henle, op. tit. 
p. 31. 
Teeth narrow, on a broad base; the lower erect, the upper 
erect or only slightly oblique. 
B. Some or all of the teeth serrated. 
iv. Hypoprion , Muller & Henle (pp. tit. p. 34). 
Lower teeth not serrated, upper only serrated at the base. 
y. Prionodon, Muller & Henle (op. tit. p. 35). Glyphis, L. 
Agassiz, Poiss. Foss. vol. iii. 1843, p. 243. 
j&m 
{ < 
i 
Some or all the teeth entirely serrated. 
i. SCOLIQDON. 
Cai?eharias (Seoliodon) ©rpiensis (Winkler). 
1876. Notidanus orpiensis , T. C. Winkler, Archiy. Mus. Teyler, vol. iv. 
p. 12, pi. i. figs. 13-17. (if. tipy ~ 
1876. Notidanus orpiensis, A. Hutot, Ann. Soc. Hoy. Malacol. Belg. 
vol. xi. p. 29, pi. i. fig. 3. 
Type. Detached teeth. 
Teeth with a broad, low crown, the anterior margin arched and 
the posterior margin deeply notched. Faint traces of serrations 
occasionally observable upon the anterior coronal margin, more fre¬ 
quently upon the posterior margin below the notch. 
Form. dr Loo. Lower Eocene: Belgium and England. 
P. 4104. Two teeth; Woolwich and Heading Beds. 
Presented by Sydney C. Cockerell , Esq., 1883. 
P. 5742. Two teeth ; Lower Heersian Beds, Orp-le-Grand, Belgium. 
Presented by G. F. Harris, Esq., 1888. 
■ 
Carcharias (Sc©Ii©doia) e@eaeira §5 sp. nov. 
Type. Detached teeth ; British Museum. 
Teeth of considerable size, broad and triangular, much com¬ 
pressed ; dental crown with very slightly excavated posterior 
margin. 
Form. Sf Loc. London Clay: Highgate, London. 
43135. Two type specimens, the larger measuring HOI across the 
base ; Highgate Archway. Wetherell Coll. 
The following specimens also appear to be referable to this sub¬ 
genus 
40242. Fifteen minute teeth ; Barton Clay, High Cliff, Hampshire. 
Edwards Coll. 
