422 
SELACHII. 
Carcharodon longidens , L. Pillet, Mem. Acad. Sci. Savoie, [3] 
vol. ix. (1883), p. 277, with plate.—(?)Danian; Haute 
Savoie. y<^lc>y 
Carcharodon microdon , H. Le Hon, op. cit. p. 7, woodcut.— 
Pliocene: Belgium. 
Carcharodon mortoni , R. W. Gibbes, Proc. Acad. Hat. Sci. Philad. 
1847, p. 266 ; Journ. Acad. Hat. Sci. Philad. [2] vol. i. 
(1848), p. 146, pi. xxi. fig. 45.—Phosphate Beds; South 
., U ;C‘\ Carolina - 
/ Carcharodon rectus, L. Agassiz, Amer. Journ. Sci. [2] vol. xxi. 
(1856), p. 27A—Tertiary; Ocoya Creek, California. 
Carcharodon semiserratus , L. Agassiz, Poiss. Foss. vol. iii. (1843), 
r> } - '' p. 256, pi. xxx. a. figs. 1, 2.—Miocene ; Malta. 
Carcharodon simus , F. Bassani, Atti Soc. Tosc. Sci. Hat. vol. iii. 
(1877), p. 77, ph xi. fig. 1; Atti Soc. Veneto-Trent. Sci. 
Hat. vol. v. (1878), p. 280.—Miocene; Creazzo, Italy. 
Carcharodon tumidissimus, 0. G. Costa, Paleont. Regno Hapoli, 
pt. ii. (1854-56), p. 54, pi. v. fig. 7.-— Miocene ; Haples. 
A detached dental crown of Carcharodon , from the Chalk or 
Tertiary beds of Manganischlak, Caspian Sea, is also described by 
E. vonEickwald, Geogn.-palseont. Bemerk. Halbinsel Manganischlak 
(1871), p. 66, pi. iv. figs. 8, 9 (G. sidcidens ). Another tooth, from 
the Siwalik Formation of Pegu, Burmah, is described by R. Lydekker, 
Pal. Ind. [10] vol. iii. (1886), p. 243, pi. xxxv. fig. 8. 
/ A large vertebra from the Crag of Antwerp, very suggestive of 
the vertebra of Cetorhinus (Selache ), is described under the name of 
Carcharodon selachoides by C. Hasse, Hatiirl. Syst. Elasmobr., Besond. 
Theil (1882), p. 229, pi. xxx. fig. 35; and" another is figured on 
pi. xxx. fig. 34. 
Yertebrse from the Samland Eocene are also assigned to Carcha¬ 
rodon by F. Hoetling, Abh. Geol. Specialk. Preussen u. Thdring. 
Staaten, vol. vi. pt. 3 (1885), p. 88, pi. x. figs. 1, 2. 
~ - hTk. r rrt.T- i^'to OO-^' l°- S~ot 
• cS°*‘ Genus Agassiz. 
^ [Poiss. Foss. vol. iii. 1843, p. 224.] > 
V* . sc,. « 
&n imperfectly definable genus, comprising species of small or C' 
moderate size, known only by the teeth. Teeth compressed, more ^ 
or less triangular, usually with distinct marginal serrations; in ** 
external form very suggestive of the teeth of S'phyrna ( Zygcena ) or c / 
Carcharias , but differing in the absence of an internal cavitv. 
