<3* A** 
5. 
t ts C r e^^%~ % , f J75 /^* ^ ^ ^ j g 4 ^'** - 
/*9. , 1 _r r , ^ , -T , , ^Jy^TCJ^ -*« - 2 5?, J ^3 # " 2-** 
2i^ " / '-S . 
**.,3^*-*•*'t' ' 38 % 
- /6-2.J - 
CtA^+ry~f , 
/ h' O 
1849. uxyrhina desorii, R. W. Gibbes, Journ. Acad. Nat. Sci. Philad. 
[2] vol. i. p. 203, pi. xxvii. figs. 169-171. 
1849. Oxyrhina icilsoni , E. W. Gibbes, ibid. p. 203, pi. xxvii. figs. 172, 
173. 
1852. Oxyrhina desorii , P. Gervais, Zool. et Pal. FranQ. pi. lxxv. fig. 2. 
1854-56. Oxyrhina icilsonii, 0. G. Costa, Paleont. Eegno Napoli, pt. ii. 
pi. vii. fig. 12. 
1854-56. Oxyrhina desorii, 0. G. Costa, op. cit. pt. ii. pi. vii. fig. 13. 
(P) 1857. Oxyrhina desorii, G. G. Gemmellaro, Atti Accad. Gioenia Sci. 
Nat. [2] yoI. xiii. p. 315, pi. Yi. a. figs. 12, 13. 
1857. Lamna lyellii, G. G. Gemmellaro, tom. cit. p. 319, pi. yi. a. fig. 17. 
1857. Lamna inccquilateralis, G. G. Gemmellaro, tom. cit. p. 319, pi. Yi. a. 
fig- 22. 
1861. Oxyrhina incerta, G. Michelotti, Miocene Inf. Italie Septentr. 
(Mem. Soc. Holland. Sci., Haarlem), p. 144, pi. xiY. figs. 10-12. 
1861. Oxyrhina desorii, G. Michelotti, op. cit. p. 145, pi. xiv. figs. 13-15. 
1863. Oxyrhina desori, K. E. Schafhautl, Siid-Bay. Letli. Geogn. p. 242, 
pi. lxii. fig. 7. 
1871. Oxyrhina gracilis, H. Le Hon,* Prelim. Mem. Poiss. Tert. Belg. 
p. 11 (woodcut). 
1876. Oxyrhina desorii, R. Hawley, NuoyI Studi Pesci etc. Colline 
Toscane, p. 29. 
1876. Lamna lyellii, R. Lawley, op. cit. p. 32. 
1877. Oxyrhina desorii, A. Locard, Faune Terr. Tert. Moy. Corse, p. 4. 
1877. Oxyrhina desorii, K. Miller, Has Molassemeer Bodenseegeg. 
p. 66, pi. iii. fig. 74. 
1879. Oxyrhina desorii, J. Probst, AYiirtt. Jabresh. yoI. xxxy. p. 131, 
pi. ii. figs. 7-13. 
1879. Alopecias gigas, J. Probst, ibid. p. 141, pi. ii. figs. 72—75 (mr*- 
figs. 69-71). 
1881. Oxyrhina desorii, R. Hawley, Studi Comp. Pesci foss. coi yIy. 
generi Carcharodon, Oxyrhina, e Galeocerdo, p. 77, pis. 2, 3 ( Oxy¬ 
rhina ). 
1885. Oxyrhina xiphodon, F. Noetling, Abb. Geol. Specialk. Preussen u. 
Tbiiring. Staaten, yoI. Yi. pt. 3, p. 50, pi. iii. 
Cm 
- C- tra * fate' s 
acr. 
Type. Detached teetb. 
Anterior teetb narrow, much eleYated, and robust; crown much 
curved inwards, the outer coronal face nearly flat, the inner Yery 
conYex ; root with two elongated branches, diverging at an acute 
angle. Lateral teetb more compressed, with a shorter root haYing 
more diYergent branches : crown narrow, the cutting-edges in most 
cases gradually diYerging to the extremities of the base, and the 
apex rarely reflexed. 
The dentition of this species only differs from that of the existing 
0 . spallanzanii in the less curvature of the lateral teeth. 
Form. Sp Loc. Upper Eocene: Prussia, Italy, Alabama, and South 
