80 
CHIMvEROIDEI. 
Udaphodon biacklandi ? Agassiz. 
1848. Edaphodon bucklandi , L. Agassiz, Poiss. Foss. vol. iii. p. 851, 
pi. xl. d. figs. 1-4, 9-12, 19-24. 
1843. JEdaphodon eurygnathus, L. Agassiz, ibid. p. 352. [Palatine 
teetli; British Museum.] 
1850. JEdaphodon eurygnathus , F. Dixon, Foss. Sussex, p. Ill, pi. x. 
figs. 18, 19, 22, pi. xii. fig. 5. 
1885. JEdaphodon bucklandi , F. Noetling, Abli. geol. Specialk. Preussen 
u. Thiii'ing. Staaten, vol. vi. pt. 3, p. 3, pi. i. fig. 1. 
Type. Theoretically associated dentition of both jaws; British 
Museum (in part). 
The type species, of large size, the mandibular tooth sometimes 
measuring 0‘11 from the middle of the symphysial border to the 
extremity of the post-oral margin. Mandibular tooth robust, with 
a prominent beak, and the symphysial facette occupying more than 
one third of the inner aspect; beak-tritor mostly composed of 
laminae, the other tritors consisting of numerous tubules ; median 
tritor occupying more than two thirds of the inner oral surface, 
with a narrow band separated from it immediately upon the posterior 
border of the symphysis. Palatine tooth relatively broad, with 
large tritors, the posterior inner one being the largest and broadest 
and well separated from the outer tritor, which is much elongated 
and expands anteriorly. Vomerine tooth very robust, with a broad 
symphysial surface. 
The differences between the palatine and vomerine teeth of this 
species and those of the so-called E. eurygnathus are solely due to 
the imperfect state of preservation of the type specimens of the 
latter. 
Form. Sp Log. Middle Eocene (Bagshot and Bracklesham Beds) : 
Surrey and Sussex. Lower Eocene : Isle of Sheppey. Eocene 
(Zone A x ): Samland, Prussia. 
25700. Left mandibular tooth ; London Clay, Sheppey. 
Dixon Coll. 
25719, 25721. Two examples of the same tooth, one being more 
imperfect, the other nearly complete, but more slender; 
Bracklesham Beds, Bracklesham Bay, Sussex. Dixon Coll. 
P.3074-5. Five mandibular teeth; Bracklesham. Enniskillen Coll. 
P. 5436. Left mandibular tooth; Bracklesham. 
Presented by P. E. Coornbe , Esq ., 1888. 
38870. Bight palatine tooth, figured among the type specimens by 
Agassiz, tom. cit. pi. xl. d. figs. 19-24 ; Bracklesham ( not 
Bagshot, as stated). Bowerbank Coll • 
