392 
SELACHII. 
Oxyrldna w'niZm',G. Vincent, Ann. Soo, Roy. Malaool. Bclg.vol.xi. 
(1876), p. 125, pi. vi. fig. 3. — Lower Laudeiiiaii ; Belgium. 
Oxyrhina woodsii, J. E. T. Woods {ex E. M‘Coy, MS.), Geol. Obs. 
S. Australia (1&62), p. 80, woodcut. — Tertiary ; Mt. 
Gambior. 
Oxyrhina ziynoi, F. Bassani, Alti Soc. Tosc. Sci. Nat. vol. iii. 
(1877), p. 78, pi. xi. fig. 2 ; Atti Soo. Venoto-Tront. Sci. 
Nat. vol. V. (1878) p. 280. — Eocene; Fumanc, Verona. 
(?) Oxyrhina tippei, L. Agassiz, I’oiss. Foss. vol. iii. (1843), p. 284, 
pi. xxxvi. figs. 48-52. — Cenomanian ; Regensburg, Ba- 
varia*. [The original of fig. 48 is con.sidored to bo the 
lateral denticle of a large tooth of “ Ot.odm ” by H. E. 
Sauvage, Biblioth. Ecole Hautea Etudes, vol. v. no. 9, 
p. 23.] 
Teeth of the recent Oxyrhina yomphodon, Mlillor & Hcnle ( = 0. 
spallanzanii, Bonaparte), arc also recorded from a Tertiary deposit 
in the island of Bonaire, West Indies, by K. Martin, Zeitschr. deutsch. 
geol Ges. vol. xxxi. (1879), p. 477. 
Vertebrae of Oxyrhina are also described by C. Hasso, Nutiirl. Syst. 
Elasmobr., Besond. Theil (1882), from the Chalk of Orel, Russia {op. 
eit. p. 2.34, pi. xxxi. fig. 47), and from the Tortiarics of Baltringen, 
Flonheim, and Antwerp {op. cit. p. 234, pi. xxxi. figs. 43-40). 
Others by F. Noctlitig, Abh. Geol. Specialk. I’rcussen u. Thiiiing. 
Staaten, vol. vi. pt. 3 (1885), p. 57, pi. x. fig. 5. 
The so-called O.vyrhina arnaudi, H. Coqiiand (Descript. Geol. etc. 
Depart. Charente, vol. ii. I860, ]). 133), from the Santonian Beds of 
Franco, is considered by II. E. Sauvage to be probably founded upon 
a tooth of Gorax (Bull. Soc. Geol. Franco, [31 vol. viii 1880, 
p. 456). 
Genus LAlVEBJAy Cuvier. 
[RDgne Animal, vol. ii. 1817, p. 126.] 
Syn. Otodus, L. Agassiz, Poiss. Foss. vol. iii. 1843, p. 266. 
Second dorsal fin and the anal very small. A pit at the root of 
the caudal fin, which has the lower lobe much developed; side 
of the tail with a keel. Dentition only differing from that of 
Oilontaspis (p. 360) in the relatively loss elevated and less subulate 
character of the anterior teeth, and the usually larger size of the 
lateral denticles. 
By Oxyrhina manielU thi.s genus appears to bo connected with 
O.vyrhina ; by Lanma ohliqua with Cardmrodon. 
Some doubtful Tertiary teeth are also assigned to this species by O. Ct- 
Cosla, Palcont. Begno Napoli, pt, i. (18b0), p. 121, pi. ix. figs. 8, 19. 
