Zi tfiu fi'-w-,^ Z^Vt^vi-,^ tCcO/VC cr/^ 
VrfrYlf' J”7&~ / , Ji£. i-'^fi'f*. ^~' £ f-. CT^ 0isy^ & oLl ^ ^^y?cr^^7J 
} 0/). cvl>&^*.' dtdfty ^CtX^^Cw^: 
Type. Detached teeth; Neuchatel Museum. y.'h/.F/* — qx-s.. 
G'* '5'iaY / - 
Teeth scarcel}’ distinguishable from those of 0. ^pr^.^^ceptHby (pjfxi- /2.8-A 
the absence of striae upon the inner coronal face. They are some- /. ^,// />/ 
times more robust than the corresponding teeth of the last-named /2 /3 
species, and do not appear to attain so large a size. £/* 
Lam.nct denticulata is commonly regarded as founded upon an 7 ^ 
upper lateral tooth of this species. X. dubici is placed in the syno- ? c _ 
nymy by Le Hon, Bassani, and Sauvage. 
Form, df Loc. Eocene: S.E. England, France, and Germany; also 
Georgia, ^ irginia, and (?) Alabama, U.S.A. Pliocene : Belgium, 
France, Spain. Switzerland, Germany; Austria, and Corsica. ^ /2>tFp 
7cs-tA*rT~ A_ / < 7' r *) 
jio 
. /■* 
dl ^ ( 29017 a. Four teeth, and one small tooth perhaps of this species;, ^ ~^C) 
w > S' from a bed of sand at the base of the London Olav at ‘ ^ 1 ^ • 
P. 4728. Dbn small teeth; L ower E ocene, Herne Bay, Kent. 'p >***Q °T I ^ 
Gardner Coll . 
Kyson (Kingston), near AVoodbridge, Suffolk. 
P. 5512. Fine tooth ; London Clay, Portsmouth. 
Caleb Evans Coll. 
II, 
t 9 
f - 
f-3* 
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28763. Anterior portion of the jaws, with a few teeth and a frag- 
ment of a vertebra, preserved in hard clay ; London Clay, 
Isle of Sheppey. The extremely narrow first tooth cha- v - ^ 
racteristic of each side of the mandible in the living species 
is not recognizable; but the next two teeth are well ^ 
shown, very long and slender, and much more contorted A 0 ^ 
than those beyond. Of the latter teeth two are preserved ^ ^ ' 
on the right side; and in these the minute pointed lateral ^ 
denticles are relatively larger than in the more slenders ^ 
contorted teeth. Purchased , 1853. 
< 
l 
7 
X 
£ 
f 
P 
0-3 
28356, 28886. Four teeth ; London Clay, Sheppey. 
Cowderoy Bequest and Daniels Coll. 
x I? Q 
$ w " 
n "T) 
CA 
0 
OO \3 
P. 1249. Three teeth; Sheppey. 
Vo u ^ 
|N$ 
! * * ? 
Egerton Coll. JA > 
5 'N 
P. 577 5. Two anterior teeth, labelled “ Odontaspis hoped’ by Agassiz; . 
Sheppey. Enniskillen Coll . 
p> 
P. 5510. Three small teeth; London Clay, Highgate. 
Caleb Evans Coll 
2 B 
