116 
SELACHII. 
P. 1505 a, P.15051), P. 1507 d. Three small specimens; Brack - 
lesham. The first is referred to M. striatus by the present 
writer, loc. cit. p. 43. Egerton Coll. 
P. 3049, P. 4457 d, e. Tour medium-sized examples ; Bracklesham. 
The median teeth of the largest measure 0-037 by 0-008. 
Enniskillen Coll. 
Myliobatis toliapicus, Agassiz. 
1843. Myliobatis toliapicus , L. Agassiz, Poiss. Foss. vol. iii. p. 321, 
pi. xlvii. figs. 15-20. 
1843. Myliobatis suturalis , L. Agassiz, tom. cit. p. 322, pi. xlvi. figs. 
12-16. 
1843. Myliobatis nit ictus, L. Agassiz, tom. cit. p. 325. 
1847. Myliobatis striatus , It. Owen ( non Agassiz), Ann. Mag. Nat. Hist. 
[1] yol. xix. p. 25, woodcut. 
(?) 1850. Myliobatis toliapicus , F. Dixon, Foss. Suss. p. y, pi. x. 
figs. 3-5. 
1888. Myliobatis toliapicus, A. S. Woodward, Ann. Mag. Nat. Hist. 
[6] yol. i. p. 45. 
Type. Lower dentition ; British Museum. 
Dentition comparatively thin, the coronal contour flat in the lower 
jaw, nearly so in the upper. Longitudinal superficial striae scarcely 
apparent. Median teeth in the adult at least six times as broad as 
long; lateral teeth as broad as long, more or less diamond-shaped. 
Form, cf- Loc. Barton Clay (Upper Eocene) : Hampshire. Brack¬ 
lesham Beds (Middle Eocene): Sussex. London Clay (Lower 
Eocene): Isle of Sheppey. Lower Eocene : Belgium. 
/k CL4 
Upper Dentition. —(i.) London Clay, Isle of Sheppey. 
P. 1494. Connected series of nine median teeth, with remains of 
three lateral rows. Egerton Coll . 
30892. Much abraded specimen, with fragments of cartilage. 
Purchased, 1856. 
P. 1506 a. Connected series of seven median plates, with remains 
of two lateral rows. Egerton Coll. 
P. 528. Connected series of six median teeth, probably belonging to 
a young individual of this species, named M. nitidus by 
Agassiz, loc. cit. It is described by the present writer, 
loc. cit. p. 45. Egerton Coll. 
(ii.) Bracklesham Beds, Bracklesham Bay. 
P. 436 a. Two series of small median teeth. Purchased , 1882. 
