112 
SELACHII. 
P. 1508 b. Fragment of very large dentition. Egerton Coll. 
P. 4457 C. Fragment of young dentition, described and figured loo. 
dt. p. 42, pi. i. fig. 1, EnnisJcillen Coll. 
P. 3051. Type specimen of M. heteropleurus, Agassiz, loc- 
p. 323, pi. xlvii. figs. 6-8 ; locality unknown. 
Enniskillen Goll. 
Myliobatis striatus, Buckland. 
1837. Myliobatis striatm, W. Buckland, Geol. & Min. 2nd edit. vol. ii. 
p. 4(5, pi. xxvii. d, fig. 14 (name and figure only). 
1843. Myliobatis striatus, L. Agassiz, Poiss. Foss. vol. iii. p. ^20. 
1843. Myliobatis punctatus, L. Agassiz, tom. cit. p. 322, pi- xlvii. g®' 
11 , 12 . 
1850. Myliobatis irregularis, F. Dixon, Foss. Suss. p. 19% 
fig. 16. 
1860. Myliobatis edxcardsii, F. Dixon, op. cit. p. 190, pi- xi. fig- 
(?)1886. Myliobatis toliapictis, E.’Eoe>i\vag {non Agassiz), Abli- geo . 
Specialit. Preussen u. Tliuting. Staaten, vol. vi. pt. 3, p- 1% P • 
fig- 1- . rn-] 
1888. Myliobatis striatus, A. S. Woodward, Ann. & Mag. Nat. Hist. [ J 
vol. i. p. 42, pi. i. figs. 6-9. 
Type. Lower dentition ; Oxford Museum. , 
Dentition large and thick, the coronal contour slightly aic e 
from side to side, almost flat in the adult lower jaw. Longitudina 
superficial stria) or wrinkles generally well marked in unahra e 
specimens. Median teeth in the adult at least six times as broad as 
long ; lateral teeth longer than broad, but those of the first row no 
so elongate as in M. dLvoni. 
Form. ^ Loc. Barton Clay (Upper Eocene) : Hampshire. Brae 
lesham Beds (Middle Eocene) : Sussex. 
Upper Dentition. — Some of those specimens must pertain to M. 
(jonipleurus, others perhai)S to M. toUapicus. Unless otherwise 
stated, they were all obtained from the Bracklosham Be s, 
Bracklosham Bay. 
25671. Fragment of dentition of very young individual, remarkably 
thick, and showing three lateral rows of teeth ; figured by 
the present writer, loc. dt. p. 44, pi. i. fig- 10. 
Diccon Coll. 
25647, 25653, 25659. Three connected series of median teeth, very 
young ; the third is noticed loc. cit. p. 44. Dixon Co . 
