282 
ACTINOPTERYGII. 
49804. Worn vomerine dentition 0-011 in maximum width, noticed 
in Geol. Mag. [3] vol. x. p. 492 ; Chalk, Southeram, 
Sussex. Capron Coll. 
P. 322. A comparatively minute vomerine dentition, figured ibid. 
pi. xvii. fig. 7 ; Chalk, Charing, Kent. Harris Coll. 
Phacodus punctatus, Dixon. 
1850. Phacodus punctatus , F. Dixon, Geol. Sussex, p. 371, pi. xxx. 
fig. 16. 
Type. Worn teeth ; British Museum. 
A generic and specific name based upon the indeterminable fossil 
mentioned below. 
Form, fy Loc. Senonian : Sussex. 
25829. The type specimen, comprising three associated principal 
teeth and three lateral teeth, all worn and thus exhibiting 
a punctate surface; Chalk, Lewes. Dixon Coll. 
The following examples of vomerine bones probably belong either 
to Ccelodus or to Anomceodus :— 
49803. Imperfect middle portion of vomerine dentition, with closely 
arranged, broad, smooth median teeth; Chalk, Dorking, 
Surrey. Capron Coll. 
P. 3758. Vomerine dentition, described and figured in Geol. Mag. 
[3] vol. x. (1893), p. 492, pi. xvii. fig. 2; Upper Green¬ 
sand, Isle of Wight. Ennislcillen Coll. 
P. 7239. Portion of vomer much resembling specimen figured ibid. 
pi. xvii. fig. 4; Cambridge Greensand, Cambridge. 
Jesson Coll. 
46364. Portion of small vomer, with three series of teeth; Cam¬ 
bridge Greensand. Cunnington Coll. 
Several generically indeterminable examples of the vomerine 
dentition of Cretaceous Pycnodonts are also known. Specimens 
from the Cambridge Greensand, in the Woodwardian Museum, 
Cambridge, have been described and figured by the present writer 
(Geol. Mag. [3] vol. x. 1893, p. 492, pi. xvii. figs. 3, 4) ; and the 
following have received names :— 
Pycnodus ( Typodus ) cotteaui , H. E. Sauvage, Bull. Soc. Sci. Kat. 
Yonne, vol. xxxiii. pt. ii. (1879), p. 36, pl.ii. fig. 1 (? also 
splenial, pi. i. fig. 3).—Upper Neocomian : Auxerre, Yonne, 
France. 
