CESTRACIONTID J2. 
269 
11123, 11124. Three typical teeth, one shown, of the natural size, 
in PL XI. fig. 2 ; Stonesfield. Mantell Coll. 
28497. Two similar teeth; Stonesfield. Dixon Coll. 
35494. Tooth with relatively small anterior denticles, described 
and figured by the present writer, loo. cit. p. 257, pi. vi. 
fig. 1; Stonesfield. Purchased , 1860. 
38026, 39778. Two teeth; Stonesfield. Purchased , 1862-63. 
39203. Pour typical teeth, one of the hindermost shown, of the 
natural size, in PI. XI. fig. 1; Stonesfield. 
Bowerbank Coll. 
47974. Two similar teeth ; Stonesfield. 
Presented by the Hon. Robert Mar sham, 1877. 
P. 2182. Pour teeth ; Stonesfield. Eyerton Coll. 
P. 2186, P. 2186 a. Two teeth, one with relatively small anterior 
denticles and serrations, described and figured by the pre¬ 
sent writer, loo. cit. p. 257, pi. vi. fig. 2 ; probably from 
the Great Oolite of Bath. Eyerton Coll. 
P. 2845. Two teeth, one figured, of the natural size, in Pl. XI. 
fig. 3 ; Stonesfield. Enniskillen Coll. 
P. 5103. Typical tooth; Stonesfield. 
Presented by J. E. Lee , Esq., 1885. 
11139. Two teeth of the form named E. juyosus by Phillips ; Stones¬ 
field. So far as can be determined from these and the 
following specimens, it seems most probable that they are 
the posterior teeth of II. polyprion. Mantell Coll. 
28590. Two similar teeth, one approaching the more typical H. 
polyprion ; Eyeford. Purchased, 1853. 
P. 2182 a, P. 2845 b. Two similar teeth ; Stonesfield. 
Eyerton Sf Enniskillen Colls. 
P. 2182 b, P. 2845 a. Two anterior teeth, either of this species or 
E. levis; Stonesfield, Eyerton $ Enniskillen Colls. 
Hybodus levis ? sp. nov. 
Type. Detached tooth (PI. XI. fig. 5); British Museum. 
The provisional name of E. levis may be given to the teeth from 
of Hanover, noticed by Munster, Beitr. Petrefakt. vii (1816), p. 47. The 
Isorth German A\ ealden and Purbeck teeth figured by Bunker and Meyer 
(Nordd. Wealdenbild. 1846, p. 68, pl. xv. fig. 22) and Struckmann (Wealdenbild. 
Umgegend Hannover, 1880, p. 58, pl. iii. fig. 9) do not pertain to this species. 
